This presentation looks at the experience gained from a pre and post lift analysis of an instrumented lift operation involving a 500te payload onto a platform. Successfully engineered, the lift was conducted by a mono-hull vessel in the challenging environmental conditions of Bass Strait off South East Australia. The case study looks at the numerical analyses that were performed to demonstrate that payload horizontal motion criteria, rigging load limits, tugger tension and installation aide impact force criteria would be met in the bimodal seas prevalent in the field.
With programs such as U.S. Army Future Vertical Lift (FVL), how can I predict rotorcraft drivetrain life and solve premature failures before they occur?
Behrooz Jalalahmadi, PhD., Lead Scientist for DigitalClone Component, has outlined how prognostic models are used to extend drivetrain life in design and operation. These slides will demonstrate how Sentient Science solved fretting fatigue failures on a spline component in a Blackhawk platform by evaluating new coatings and duty cycles with computational testing. Life extension programs for bearings and gears in the Blackhawk will also be shown.
Demonstration on How to Extend the Life a 1.5MW Class GearboxSentient Science
Sentient Science demonstrate it’s computational prognostics and life extension solution for the GE 1.5MW class gearbox with a discussion regarding up-tower component replacement options, impact of up-rating on gearbox life, and general failure rates off warranty.
With programs such as U.S. Army Future Vertical Lift (FVL), how can I predict rotorcraft drivetrain life and solve premature failures before they occur?
Behrooz Jalalahmadi, PhD., Lead Scientist for DigitalClone Component, has outlined how prognostic models are used to extend drivetrain life in design and operation. These slides will demonstrate how Sentient Science solved fretting fatigue failures on a spline component in a Blackhawk platform by evaluating new coatings and duty cycles with computational testing. Life extension programs for bearings and gears in the Blackhawk will also be shown.
Demonstration on How to Extend the Life a 1.5MW Class GearboxSentient Science
Sentient Science demonstrate it’s computational prognostics and life extension solution for the GE 1.5MW class gearbox with a discussion regarding up-tower component replacement options, impact of up-rating on gearbox life, and general failure rates off warranty.
Investigating the Impacts of Uprating or Derating for the GE 1.5MWSentient Science
Many wind turbine operators that own GE 1.5MW turbines are considering to either uprate (using e.g. GE PowerUp) or derate their GE turbine fleet. Unfortunately, the impact on reliability, especially on the gearbox, through uprating or derating is unknown using standard industry techniques. This results in uncertainties that do not allow the operators to estimate the financial impact of uprating or derating correctly.
The Impacts of Uprating and Derating on Wind Turbine ReliabilitySentient Science
How can you know the impact of uprating and derating wind turbines?
Today, most OEMs offer uprating packages (GE PowerUp, Vestas PowerPlus, etc.) that allow for existing wind turbines to realize higher annual power production. The impact on reliability through derating or uprating is unknown through industry standard techniques. This has led to well under 20 year life of current wind turbine gearboxes.
Advisian dynamic process simulation capability june 2019Advisian
Dynamic Process Simulation allows the prediction of not only how a system is expected to behave when it is operating at the targeted design point – it is capable of predicting how it will behave when away from its “design point”.
Surrogate Model-Based Reliability Analysis of Composite UAV Wing facilitation...Altair
Numerical simulation becomes increasingly strategic to design innovative products and to set up their manufacturing processes, reducing simultaneously development costs and time to market while increasing quality and reliability.
To support this evolution, SILKAN develops a platform for the integration of various types of simulation software, named BUILDERTM.
BUILDERTM is an efficient, innovative and scalable simulation-based platform designed to deal with the increasing use of complex numerical simulations applied to part design, system design or manufacturing processes.
The principal objectives of this platform are to:
Promote and structure the use of simulation
Standardize, parameterize and automate simulation processes.
Capture and re-use the best practices.
Facilitate coupling between different simulation levels and tools.
Improve collaboration across different project teams.
Facilitate access to simulation means for the uninitiated.
Accelerate design and production cycles.
Democratize the use of optimization and reliability procedures and better control manufacturing processes and failure risks.
An application example using BUILDERTM is addressed in this paper. It deals with the robust design of a composite UAV wing. The associated simulation workflow includes two principal steps.
During the first step, Matlab is used to estimate aerodynamic loads applied to the wing when as a function of flight parameters: air flow speed, angle of attack of the wing and aileron deflection angles. A Design of Experiment (DoE) is built by varying the flight parameters in order to cover all the flight domain of the UAV.
The aerodynamic loads thus obtained are then injected into OptiStruct to estimate Tsai-Wu failure criteria for the composite material. An efficient surrogate model is then built from the obtained Tasi-Wu criteria and covers the entire flight domain. Finally to conclude this first part, a failure probability , based on Tsai-Wu criteria, is estimated using the produced surrogate model.
In the second step the following optimization problem is defined using some design variables of the wing (essentially thicknesses of composite layers of the wing):
Wing Mass is calculated by Optistruct, and being evaluated using the step1. An evolutionary algorithm implemented into Dakota is used to perform this surrogate-model -
based optimization.
The set up, parameterization and automation of this complex simulation workflow is facilitated and achieved through the use of the BUILDERTM platform. The combination of different software at different levels of the workflow is also made accessible by the use of BUILDERTM.
Speakers
Samir Ben Chaabane, Numerical Simulation Manager for EMEA, SILKAN S.A
Fatigue Analysis of a Pressurized Aircraft Fuselage Modification using Hyperw...Altair
Fatigue Analyses of modifications on pressurized aircraft fuselages are both necessary and tedious. Using the Hyperworks software suite and StressCheck, RUAG has developed a fatigue analysis method which streamlines the process from the creation of the spectrum up to the detailed analysis of selected fastener holes and delivers results quickly and efficiently.
This method was then used to certify the installation of two large windows in the floor of a single engine turboprop A/C for aerial survey applications.
Speakers
David Schmid, Manager Structural Analysis, RUAG Schweiz AG
Large scale topological optimisation: aircraft engine pylon caseAltair
An engine pylon holds the engine to the wing and ensures multiple others functions: aerodynamics, structure and systems. Moreover, it is designed to prevent a fire in the engine area from spreading to the wing. These multi-functions make the global pylon architecture design highly complex. Existing designs reach their limits regarding the aircraft performance requirements, with ever more powerful, bigger and hotter engines. Thus, the technological breakthrough becomes necessary to achieve better performance.
In the present work, we propose a new concept based on Additive Layer Manufacturing (ALM) process which eliminates many conventional constraints from the manufacturing process and can produce complex, precisely designed shapes.
Topological optimization, using ALTAIR’s finite element analysis software, is realized by integrating systems elements, fluid pipes mainly, to structural parts. Thus, these elements become structural unlike the existing design.
One objective of this work is to demonstrate the numerical feasibility of topology optimisation of large-size (5 m long, 0.83 m width and 1.19 m in height) and highly complex architecture design of an aeronautical structure.
The results show that a significant mass saving, more than 20%, can be achieved even with heavily constrained structure in terms of stresses, dimensions, interfaces, systems, etc. Furthermore, this study highlights benefits in the parts number which dropped by 97%.
Note that the existing engine pylon is made mostly of Titanium and Steel materials but for the topology optimisation a single material, Inconel 718, was chosen due to its best thermal and mechanical properties.
In order to ensure aerodynamic function, obtained organic shape structure is covered by custom-made cowls.
1/8 scale model is 3D printed by INITIAL company, using plastic material, can be exposed during the Altair Technology Conference.
Speakers
Abdelkader Salim, Innovation Engineer, SOGECLAIR Aerospace
Modeling Tribological Contacts in Wind Turbine GearboxesSentient Science
Sentient Science outlines how we build a multi-physics solver for rolling contact and fatigue modeling that predicts where both long and short crack nucleate and initiate before system failure occurs.
Optimization of Bolted Joints for Aircraft Engine Using Genetic AlgorithmsIJMER
Genetic Algorithms mimic the evolving technique of nature to better fit populations to a certain environment. Despite this technique has proved its adequacy in several fields, its application in Aerospace is still limited, mostly because of the high quantity of acceptability criteria that the design
must pass and the amount of design parameters. The presented paper explores required GA architecture’s adaptations to be applied in highly restricted systems such as those commonly found in Aerospace applications. The proposed GA was applied to the design of an Aircraft Engine’s Axial Casing bolted joint following static strength restrictions as per FAR 33 regulations. The set of Elitism,
interdependent geometric restrictions, Crossing, and Reproduction modules proved the applicability of
the presented multi-objective GA architecture under 14 restrictions for normal, limit and ultimate loads.
As it is described, the conversion is quickly achieved due to the shortage of the search space; therefore a
modified Variable Crossing per Scheme is proposed to expand the diversity of the genome to compensate
the relatively low impact of the Mutation module. Finally, the process and solutions found were compared against the traditional design process, showing the feasibility of this technique in complex applications in terms of quality of the solution and developing time.
New HyperWorks Pedestrian Impact Tool for vehicle engineering and CAE simulationAltair
The engineering challenges according to the pedestrian safety requirements have an important impact on the vehicle development time line and on vehicle design. The different pedestrian safety regulations that a vehicle has to fulfill (legal (ECE, GTR…) or consumer (EuroNCAP)) represent a high number of impact points that have to be defined depending on the regulation protocol. For each impact point, a FEM simulation has to be performed in order to evaluate the overall pedestrian protection performances. The integration of this process into an innovative virtual prototyping method needs a CAE tool allowing the automatic definition of the impact points and the automatic generation of ready-to-run FE models for impact simulation. Moreover, pedestrian requirements have a direct influence on vehicle design. That’s the reason why, an automatic definition of the impact points based on CAD design surfaces is a key to allow engineering judgment and design changes in the early phase of the vehicle development. The new HyperWorks Pedestrian Impact Tool, developed by Altair Engineering in cooperation with the Ford of Europe Pedestrian Protection Team, offers a perfect solution to these challenges. During the presentation, an overview of the tool capabilities will be given as well as results of an application on a Ford vehicle model.
Speakers
Dany Tapigue, Engineer, Ford Werke GmbH
Airbus - Topology Optimization Methods for Optimal Aircraft ComponentsAltair ProductDesign
Application of Topology, Sizing and Shape Optimization Methods to Optimal Design of Aircraft Components - a Technical Engineering & Analysis Paper from Altair ProductDesign
RINA - AOG 2017 - LGS technology for drilling risers - AMOG - Adrian Eassom Nick Bentley
Drilling risers are regularly deployed in depths beyond 1500m with large sections covered in buoyancy. The smooth cylindrical shape of buoyancy modules can result in significant Vortex Induced Vibration (VIV) response, causing overall amplification of drag experienced by the riser. In turn, operations can be suspended due to drag effects on top and bottom angles, and high current speeds can lead to a halt in operations - even complete disconnection and retrieval of the riser string.
Investigating the Impacts of Uprating or Derating for the GE 1.5MWSentient Science
Many wind turbine operators that own GE 1.5MW turbines are considering to either uprate (using e.g. GE PowerUp) or derate their GE turbine fleet. Unfortunately, the impact on reliability, especially on the gearbox, through uprating or derating is unknown using standard industry techniques. This results in uncertainties that do not allow the operators to estimate the financial impact of uprating or derating correctly.
The Impacts of Uprating and Derating on Wind Turbine ReliabilitySentient Science
How can you know the impact of uprating and derating wind turbines?
Today, most OEMs offer uprating packages (GE PowerUp, Vestas PowerPlus, etc.) that allow for existing wind turbines to realize higher annual power production. The impact on reliability through derating or uprating is unknown through industry standard techniques. This has led to well under 20 year life of current wind turbine gearboxes.
Advisian dynamic process simulation capability june 2019Advisian
Dynamic Process Simulation allows the prediction of not only how a system is expected to behave when it is operating at the targeted design point – it is capable of predicting how it will behave when away from its “design point”.
Surrogate Model-Based Reliability Analysis of Composite UAV Wing facilitation...Altair
Numerical simulation becomes increasingly strategic to design innovative products and to set up their manufacturing processes, reducing simultaneously development costs and time to market while increasing quality and reliability.
To support this evolution, SILKAN develops a platform for the integration of various types of simulation software, named BUILDERTM.
BUILDERTM is an efficient, innovative and scalable simulation-based platform designed to deal with the increasing use of complex numerical simulations applied to part design, system design or manufacturing processes.
The principal objectives of this platform are to:
Promote and structure the use of simulation
Standardize, parameterize and automate simulation processes.
Capture and re-use the best practices.
Facilitate coupling between different simulation levels and tools.
Improve collaboration across different project teams.
Facilitate access to simulation means for the uninitiated.
Accelerate design and production cycles.
Democratize the use of optimization and reliability procedures and better control manufacturing processes and failure risks.
An application example using BUILDERTM is addressed in this paper. It deals with the robust design of a composite UAV wing. The associated simulation workflow includes two principal steps.
During the first step, Matlab is used to estimate aerodynamic loads applied to the wing when as a function of flight parameters: air flow speed, angle of attack of the wing and aileron deflection angles. A Design of Experiment (DoE) is built by varying the flight parameters in order to cover all the flight domain of the UAV.
The aerodynamic loads thus obtained are then injected into OptiStruct to estimate Tsai-Wu failure criteria for the composite material. An efficient surrogate model is then built from the obtained Tasi-Wu criteria and covers the entire flight domain. Finally to conclude this first part, a failure probability , based on Tsai-Wu criteria, is estimated using the produced surrogate model.
In the second step the following optimization problem is defined using some design variables of the wing (essentially thicknesses of composite layers of the wing):
Wing Mass is calculated by Optistruct, and being evaluated using the step1. An evolutionary algorithm implemented into Dakota is used to perform this surrogate-model -
based optimization.
The set up, parameterization and automation of this complex simulation workflow is facilitated and achieved through the use of the BUILDERTM platform. The combination of different software at different levels of the workflow is also made accessible by the use of BUILDERTM.
Speakers
Samir Ben Chaabane, Numerical Simulation Manager for EMEA, SILKAN S.A
Fatigue Analysis of a Pressurized Aircraft Fuselage Modification using Hyperw...Altair
Fatigue Analyses of modifications on pressurized aircraft fuselages are both necessary and tedious. Using the Hyperworks software suite and StressCheck, RUAG has developed a fatigue analysis method which streamlines the process from the creation of the spectrum up to the detailed analysis of selected fastener holes and delivers results quickly and efficiently.
This method was then used to certify the installation of two large windows in the floor of a single engine turboprop A/C for aerial survey applications.
Speakers
David Schmid, Manager Structural Analysis, RUAG Schweiz AG
Large scale topological optimisation: aircraft engine pylon caseAltair
An engine pylon holds the engine to the wing and ensures multiple others functions: aerodynamics, structure and systems. Moreover, it is designed to prevent a fire in the engine area from spreading to the wing. These multi-functions make the global pylon architecture design highly complex. Existing designs reach their limits regarding the aircraft performance requirements, with ever more powerful, bigger and hotter engines. Thus, the technological breakthrough becomes necessary to achieve better performance.
In the present work, we propose a new concept based on Additive Layer Manufacturing (ALM) process which eliminates many conventional constraints from the manufacturing process and can produce complex, precisely designed shapes.
Topological optimization, using ALTAIR’s finite element analysis software, is realized by integrating systems elements, fluid pipes mainly, to structural parts. Thus, these elements become structural unlike the existing design.
One objective of this work is to demonstrate the numerical feasibility of topology optimisation of large-size (5 m long, 0.83 m width and 1.19 m in height) and highly complex architecture design of an aeronautical structure.
The results show that a significant mass saving, more than 20%, can be achieved even with heavily constrained structure in terms of stresses, dimensions, interfaces, systems, etc. Furthermore, this study highlights benefits in the parts number which dropped by 97%.
Note that the existing engine pylon is made mostly of Titanium and Steel materials but for the topology optimisation a single material, Inconel 718, was chosen due to its best thermal and mechanical properties.
In order to ensure aerodynamic function, obtained organic shape structure is covered by custom-made cowls.
1/8 scale model is 3D printed by INITIAL company, using plastic material, can be exposed during the Altair Technology Conference.
Speakers
Abdelkader Salim, Innovation Engineer, SOGECLAIR Aerospace
Modeling Tribological Contacts in Wind Turbine GearboxesSentient Science
Sentient Science outlines how we build a multi-physics solver for rolling contact and fatigue modeling that predicts where both long and short crack nucleate and initiate before system failure occurs.
Optimization of Bolted Joints for Aircraft Engine Using Genetic AlgorithmsIJMER
Genetic Algorithms mimic the evolving technique of nature to better fit populations to a certain environment. Despite this technique has proved its adequacy in several fields, its application in Aerospace is still limited, mostly because of the high quantity of acceptability criteria that the design
must pass and the amount of design parameters. The presented paper explores required GA architecture’s adaptations to be applied in highly restricted systems such as those commonly found in Aerospace applications. The proposed GA was applied to the design of an Aircraft Engine’s Axial Casing bolted joint following static strength restrictions as per FAR 33 regulations. The set of Elitism,
interdependent geometric restrictions, Crossing, and Reproduction modules proved the applicability of
the presented multi-objective GA architecture under 14 restrictions for normal, limit and ultimate loads.
As it is described, the conversion is quickly achieved due to the shortage of the search space; therefore a
modified Variable Crossing per Scheme is proposed to expand the diversity of the genome to compensate
the relatively low impact of the Mutation module. Finally, the process and solutions found were compared against the traditional design process, showing the feasibility of this technique in complex applications in terms of quality of the solution and developing time.
New HyperWorks Pedestrian Impact Tool for vehicle engineering and CAE simulationAltair
The engineering challenges according to the pedestrian safety requirements have an important impact on the vehicle development time line and on vehicle design. The different pedestrian safety regulations that a vehicle has to fulfill (legal (ECE, GTR…) or consumer (EuroNCAP)) represent a high number of impact points that have to be defined depending on the regulation protocol. For each impact point, a FEM simulation has to be performed in order to evaluate the overall pedestrian protection performances. The integration of this process into an innovative virtual prototyping method needs a CAE tool allowing the automatic definition of the impact points and the automatic generation of ready-to-run FE models for impact simulation. Moreover, pedestrian requirements have a direct influence on vehicle design. That’s the reason why, an automatic definition of the impact points based on CAD design surfaces is a key to allow engineering judgment and design changes in the early phase of the vehicle development. The new HyperWorks Pedestrian Impact Tool, developed by Altair Engineering in cooperation with the Ford of Europe Pedestrian Protection Team, offers a perfect solution to these challenges. During the presentation, an overview of the tool capabilities will be given as well as results of an application on a Ford vehicle model.
Speakers
Dany Tapigue, Engineer, Ford Werke GmbH
Airbus - Topology Optimization Methods for Optimal Aircraft ComponentsAltair ProductDesign
Application of Topology, Sizing and Shape Optimization Methods to Optimal Design of Aircraft Components - a Technical Engineering & Analysis Paper from Altair ProductDesign
RINA - AOG 2017 - LGS technology for drilling risers - AMOG - Adrian Eassom Nick Bentley
Drilling risers are regularly deployed in depths beyond 1500m with large sections covered in buoyancy. The smooth cylindrical shape of buoyancy modules can result in significant Vortex Induced Vibration (VIV) response, causing overall amplification of drag experienced by the riser. In turn, operations can be suspended due to drag effects on top and bottom angles, and high current speeds can lead to a halt in operations - even complete disconnection and retrieval of the riser string.
AOG 2017 RINA - Adrian Eassom - LGS technology for Drilling RisersNick Bentley
LGS technology for Drilling Risers - Reducing Costs by increasing Operability whilst improving safety. Courtesy of AMOG, presented at the RINA Conference - AOG 2017 by Adrian Eassom.
Offshore wind technology cost reduction one year on Bruce Valpy Feb 2013BVG Associates
Presentation to EWEA in February 2013 on the progress made in wind technology cost reduction following a year after the UK government white paper and the Crown Estate study into cost reduction possibilities
Design and development of horizontal tensile testing machine (5kN)Sajeed Mahaboob
In this project, a portable horizontal tensile testing system involving the use of a specially designed tensile specimen is proposed. The system developed was designed to convert the rotation motion of a ball screw into the linear motion of specimen grips that apply a tensile load to the specimen. The frame contains an aligned linear motion guide for the movement of the specimen grips, ensuring the co-linearity of the travel axes. One side of the specimen is connected to a ball-screw block and the other side is connected to a load-cell (which is static) to detect the load magnitude.
Cutting Aerospace Validation Costs in Half Using Computational TestingSentient Science
Learn how advances in computational testing in the aerospace industry lead to reduced cost and time for validations of new designs and modifications. Dr. Raja Pulikollu expands on the American Helicopter Society (AHS) International Vertiflite article "Testing the Digital Gearbox".
Use physics-based modeling and computational testing to:
-Reduce qualification costs associated with physical testing of design prototypes
-Accelerate product development cycle by virtual evaluations of design alternatives
-Enable life predictions for key components that are based on first principles and material science
-Expand the ability to validate design effectiveness under a wider variety of environmental and loading conditions
Building complaince with the energy efficiency measures in the building code of Autralia can be a little daunting to understand. This presentation provides a structured approach and sets out the contents of acheiving compliance with BCA Section J, using the JV3 verification method. The JV3 method provides greater freedom in the desing process, can generally result in lower construction costs, lower energy costs and more comfortable buildings when used appropriately.
Prelude FLNG Innovations - As presented by Mike Efthymiou,
Professor of Offshore Engineering, University of Western Australia
Managing Innovations in a MegaProject
Side-by-side Offloading
Turret & Mooring
Water Intake Risers
RINA - AOG 2017 - Ian Milne - River LAB Wave BasinNick Bentley
RiverLab involves a community of more than 15 researchers working on projects spanning across oceanography, engineering and animal biology. One of the capstone projects involves the design and construction of a model FPSO, in combination with a novel instrument system to measure the vessel heading and dynamic motion when subjected to natural and artificial waves in the river. The innovations in this capstone project are the use of low cost sensors in combination with the Swan River rather than a traditional wave basin. Basins offer user-specified sea states, but the waves are often long crested and include unavoidable reflections due to the walls of the basin. Data obtained through this capstone project will be used to better understand FPSO motions in directionally spread waves and to validate numerical models of vessel motions - leading to improved models for prototype predictions.
RINA - AOG 2017 - Numerical Modelling of Marine Structure Behaviours in Steep...Nick Bentley
The interaction of steep waves with structures is still not fully
understood, and is of great importance for the design and operation of these structures. A particular difficulty with modelling such interaction lies in necessity of modelling the waves field in a large scale of about 20 kilometers during a seat state (about 3 hours) and nonlinear behaviours of the structures. This presentation will describe how we tackle the difficulty to obtain the results of large scale nonlinear wave fields, to
numerically calculate the wave loading on fixed structures, to simulate the responses of single and two floating bodies to steep waves, and to investigate the effects of sloshing on the motion of floating structures.
The presentation will also discuss the difference between nonlinear wave loadings on a structures moving with a forward speed and on the structure which is fixed but subjected to a current with a speed same as the forward speed when they are all in steep waves. The difference is an issue because the forward speed of a moving structure should not affect the incoming wave field but the current may alter the incoming waves if nonlinearity must be taken into account. This will lead to the difference in wave loadings even though the encountering frequency is the same. This issue has not been well understood so far but would be important for the problems involving steeps waves.
RINA - AOG 2017 - Development of Self Installing Deepwater Spar - ARUP - Ashi...Nick Bentley
A generic ACE Spar concept has been developed which can further be evaluated to suit different topsides functions like wellhead, drilling, production and compression. The concept comprises a cylindrical spar sub-structure with trussed legs connected to a steel soft tank, and a stiffened plate steel barge deck which will support the topsides. The ACE Spar platform has been designed for water depths of up to 1000m, and topsides facilities to support a throughput capacity of 30,000bpd.
The key features of ACE Spar platform include:
• Self-installing
• Reduced requirement of specialist offshore vessels
• Enhanced project Economics and improved constructability
• Uninterrupted deck-space
• Modular topsides construction
• Less intensive offshore campaign
• Relocatable/de-commissionable
RINA - AOG 2017 - Floating nuclear power plants for a safer and cleaner futur...Nick Bentley
The Chernobyl and Fukushima nuclear incidents singe the minds many with disturbing images.
Irrational doubts about the safety of nuclear power plants persist. Even as toxic gases emitting from conventional plants are insidiously killing thousand more, they continue to insist that gas-, oil- and even coal-fired power plants are safer than nuclear.
Is there a solution that offers the benefits of clean nuclear energy with minimal risk to human life and the environment? Yes. I think the solutions lie in the hands of marine engineers and naval architects. The advent of SMR (Small Modular Reactor) and the decades of expertise in constructing and operating offshore oilrigs provide the opportunity to build floating nuclear power plants. Their compactness and mobility are key safety features. They are surrounded by an infinite heat sink in their entire working life and may be moved to an accredited facility for maintenance and decommissioning.
RINA - AOG 2017 - Acceptance of performance based inspection - AMSA - Rob Geh...Nick Bentley
In order to maintain their international statutory certification,
disconnectable FPSOs and FSUs have had to leave the riser at 5-yearly intervals to undertake renewal surveys in drydock. The down-time and lost production associated with these surveys results in their cost being much greater than for a comparable trading tanker. AMSA has long been concerned about the effect of these dockings on FPSO operations and has approved a performance-based inspection (PBI) regime for one Australian FPSO that enables it to remain on the riser for extended periods without drydocking.
The presentation will outline the studies undertaken by the owner to satisfy the classification society and AMSA that the vessel is capable of continued safe operations over this extended period between dockings while continuing to meet classification society and statutory requirements.
RINA - AOG 2017 - FOI compliance lessons learned and future tools - Lloyds Re...Nick Bentley
The industry is constantly developing new technologies and new
techniques for inspection and management of compliance. These can be used to drive safety and efficiency offshore but can also be focused to address some of the issues in the regulatory environment and to take account of the lessons we have learned. We take a look at RBI, ROVs, Drones and other new techniques, what is being done to ensure they meet regulatory compliance requirements and how they can be practically and safely deployed to meet the challenges of the industry.
AOG 2017 RINA - Jeff Baker - FOI compliance lessons learned and future toolsNick Bentley
FOI (Floating Offshore Installations compliance) - Lessons learned and future tools
Courtesy of Lloyds Register, presented at the RINA Conference - AOG 2017 by Jeff Baker.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
RINA AOG 2017 - Advancement in numerical analyses of heavy lifts - AMOG - Stuart Wales -
1. Expertise. Innovation. Value.
AMOG is a leading global solutions provider
to the energy, resources, defence, rail,
and maritime construction industries.
2. Stuart Wales
Advancement in Numerical Analyses of Heavy Lifts:
Beyond the Boom-tip
23rd February 2017
Principal Engineer
3. Introduction
> The challenges and benefits of modelling in-air lifts, beyond the boom tip
> Project case study: Yolla MLE1B Gas Compression Module
> Analytical techniques developed
> Full scale validation and optimisation
> Conclusions
4. > Yolla Platform off Bass Straight
> 500te Gas compression module
> Challenging set-down location
> 2012 installation attempt aborted
• Resonant pendulation
• Tugger snatch loading
Case study: Origin Energy Yolla MLE1B
5. > Response prediction requires
understanding:
• Vessel response itself.
• Motion of the load in response to the motion
of the vessel.
• Coupling between the load and the vessel.
• Damping in each of the degrees of motion for
all significant aspects of the lift.
• The effects of mechanical restraints.
• The effects of the crane driver actions.
Response Prediction
Analysis of In-Air Lifts
No Damping
Damped with Tuggers
Load Damped
6. > Lightly damped system
• Lack of industry knowledge
> Actively restrained system
• Response properties of CT tuggers
> Critical stages can be timed for benign
periods
> Code based guidance
• Peak rigging loads
• Rules of thumb
> Translation of advanced analysis results into
robust offshore criteria
Analysis Limitations
Analysis of In-Air Lifts
7. Pre-validation model
> Extensive exploration of analytical behaviours
> Critical aspects of the model required values
which are unavailable
> A number of assumptions required
engineering judgement validated by practical
experience
> A campaign of actual validation required
Analysis of In-Air Lifts
8. Data Capture Campaign
> IMU installed on module
• Module acceleration
• Module angular velocity
> Vessel and crane data stream captured
• Vessel motion in six degrees of freedom
• Hoist load, radius and speed
• Hoist block position
• Jib and slew angle
• Tugger load and line speed
> Waverider buoy data
• Wave elevation
• Spectral seastate
> Full scale pluck test
Full scale validation
9. Results
> Adjustment of key assumptions made
• More sophisticated numerical models for tuggers
required
> Confirmation that more sophisticated
damping assumptions required
> Damping larger than initially assumed
> Vessel – load coupling significant
• Contrary to code guidance
Full scale validation
10. > Further data capture campaigns required
> Incorporation of findings into improved
lifting codes
> Detailed analysis should be the norm for
project critical lifts
> A joint industry project?
> Analysis of in-air lifts can bring tangible
project benefits:
• Safety improvements
• Vessel optimisation
• Operability improvement
• Independent validation
> Industry data to support analysis limited
> Detailed validation engineering performed
on one lift
Conclusions
