Indian Shortform video : Ready to leapfrog towards monetization?RedSeer
Most important part of the Creator Funnel is growing at a faster pace indicating that the follower growth is not restricted to Top Influencers. Mismatch between Ad-Spend and Time spent Though 7% of time is spent on Shortform Video, <1% of Ad $ is contributed by it.
The latest Dentsu Ad Spend Report forecasts how the various mediums are shaping the ad spend share, globally with some of the major media channels like TV and digital, playing a significant role in India.
The global market for abrasives is expected to grow from $ 13,573.1 million in 2021 to $ 18,422.3 million in 2026. The market is expected to grow at a CAGR of 6.3% over the forecast period (2021-2026). Some of the market's key participants are 3M, Asahi, Bosch, Dronco (Osborn), Fujimi, Hermes Schleifmittel, Huanghe Whirlwind, Husqvarna, Klingspor, Murugappa Group, Noritake, Pferd, Rhodius, Saint-Gobain, Sharpness, Suhner Group, Tyrolit. This report intends to identify significant growth areas and to explore relevant market strategies. This in-depth analysis delves into the global market for abrasives. The primary goal of this research is to examine the potential growth areas, significant trends, and the market's impact on the industry. The report also reviews the adoption of abrasives in both established and emerging markets.
Asia Investment & Banking Conference 2018 – HSBC M&A Competition Champions (A...Amir Hisham
AIBC 2018 HSBC M&A Competition
Our team in the Investment Banking Division has been selected to present a pitch book - to be termed as a ‘Strategic Review’ - to the Board of Directors of our client, Michael Kors Holdings Limited (KORS), regarding a potential acquisition target in the fashion industry in line with their growth strategy.
Moventas GE 1.5 Extra Life Gearbox Achieves 4x LifeSentient Science
The presentation outlines the upgrades Moventas made on the GE 1.5 Extra Life gearboxes.
Sentient Science validated the technology advances and life extension claims for the owner operator community and quantified the improvements in performance, durability and reliability.
The computational testing showed an overall life improvement by a factor of 4x. The life extension achieved was due to improvements made to the case carburized ring gear, integrated planet gear bearings, high speed stage bearings, tooth surface roughness, and material specification upgrades in both bearings and gears.
View a recording of this webinar at:
http://sentientscience.com/resource-library/videos/webinar-recordings/moventas-ge-1-5-extra-life-gearbox-achieves-4x-life/
Indian Shortform video : Ready to leapfrog towards monetization?RedSeer
Most important part of the Creator Funnel is growing at a faster pace indicating that the follower growth is not restricted to Top Influencers. Mismatch between Ad-Spend and Time spent Though 7% of time is spent on Shortform Video, <1% of Ad $ is contributed by it.
The latest Dentsu Ad Spend Report forecasts how the various mediums are shaping the ad spend share, globally with some of the major media channels like TV and digital, playing a significant role in India.
The global market for abrasives is expected to grow from $ 13,573.1 million in 2021 to $ 18,422.3 million in 2026. The market is expected to grow at a CAGR of 6.3% over the forecast period (2021-2026). Some of the market's key participants are 3M, Asahi, Bosch, Dronco (Osborn), Fujimi, Hermes Schleifmittel, Huanghe Whirlwind, Husqvarna, Klingspor, Murugappa Group, Noritake, Pferd, Rhodius, Saint-Gobain, Sharpness, Suhner Group, Tyrolit. This report intends to identify significant growth areas and to explore relevant market strategies. This in-depth analysis delves into the global market for abrasives. The primary goal of this research is to examine the potential growth areas, significant trends, and the market's impact on the industry. The report also reviews the adoption of abrasives in both established and emerging markets.
Asia Investment & Banking Conference 2018 – HSBC M&A Competition Champions (A...Amir Hisham
AIBC 2018 HSBC M&A Competition
Our team in the Investment Banking Division has been selected to present a pitch book - to be termed as a ‘Strategic Review’ - to the Board of Directors of our client, Michael Kors Holdings Limited (KORS), regarding a potential acquisition target in the fashion industry in line with their growth strategy.
Moventas GE 1.5 Extra Life Gearbox Achieves 4x LifeSentient Science
The presentation outlines the upgrades Moventas made on the GE 1.5 Extra Life gearboxes.
Sentient Science validated the technology advances and life extension claims for the owner operator community and quantified the improvements in performance, durability and reliability.
The computational testing showed an overall life improvement by a factor of 4x. The life extension achieved was due to improvements made to the case carburized ring gear, integrated planet gear bearings, high speed stage bearings, tooth surface roughness, and material specification upgrades in both bearings and gears.
View a recording of this webinar at:
http://sentientscience.com/resource-library/videos/webinar-recordings/moventas-ge-1-5-extra-life-gearbox-achieves-4x-life/
Investigating Microstructural Alterations Leading to White Etch Cracks (WEC's...Sentient Science
This webinar outlines Sentient's development on their White Etching Crack capabilities to current materials-based prognostics life prediction models to better predict wind turbine gearbox life.
The formation of white etching cracks (WEC's) in bearings are known to be one of the major failure modes associated with gearbox failure. WEC's can casue premature failures in rolling element bearings occuring as early as 1-20% of the calculated L10 life.
According to the National Renewable Energy Laboratory's (NREL) gearbox failure database, 64% of gearboxes failed due to bearings and 25% due to gear failures. These failures are causing increased downtime and costly repairs.
The webinar outlines microstructrual alterations detected in LSIS and HSIS bearings and how microstructural alterations impact damage in gearboxes.
Norton lanserar en serie nya kapskivor speciellt avsedda för användning inom gjuterier. De nya kapskivorna är baserade på ett helt nytt bindemedelssystem, FoundryX, som uppges ha flera fördelar som snabbare och effektivare kapning.
Saint-Gobain Abrasives, under the Norton brand, has introduced in the market a new range of cut-off wheels for use in Foundry environments. This latest generation of cut-off products has been developed with the new Foundry X bond technology, engineered to increase cut rate and wheel life in all foundry cut-off applications.
Nortonin uudet FoundryX –katkaisulaikat valimoille takaavat paremman aineenpoiston ja niiden käyttöikä on pidempi. Katkaisulaikoilla, joissa on Norzon-hioma-ainetta, aineenpoisto voi tehostua 50%. FoundryX:ää käytetetään katkaistaessa valurautaa, ruostumatonta sekä runsas- ja matalaseosteista terästä.
Extend gearbox life with new components and methods 2015.04.21Sentient Science
Sentient Science hosted three different solution providers to discuss their approaches for life extension of wind turbine gearboxes. They will show their unique materials, torque dampener, and components and how these contribute to making wind turbine gearboxes last longer. The DigitalClone lifing model can take these benefits into account to validate the benefits.
1.a literature review on composite material for drive shaftEditorJST
A drive shaft is a pivoting part that transmits control from the motor to the differential apparatus of a
back wheel drive vehicles. The steel driveshaft is utilized as a part of car, these days this steel drive shaft is
supplanted by composite material drive shaft. It has been demonstrated that composite drive shafts are
successful in over-coming the confinements, for example, weight, vibrational qualities and basic speed. Their
flexible properties can be tailored to increase the torque as well as the rotational speed at which they operate.
The drive shafts are used in automotive ,aircraft and aerospace applications. The automotive industry is
exploiting composite material technology for structural components construction in order to obtain there
reduction of the weight without decrease in vehicle quality and reliability. The drive shafts are utilized as a part
of car, air ship and aviation applications. It is known that energy conservation is one of the most important
Indeed, the very way of the composite materials (fiber and resinous fastener) permits drive-shafts to be intended
to meet particular basic operational characteristics ,and accordingly custom fitted to coordinate the prerequisites
of individual applications. The consequence of this are utilized for demonstrating of carbon/epoxy composite
drive shaft and steel drive shaft utilizing CAD programming to perform static, clasping and modular
examination of both drive shaft utilizing ANSYS programming.
Project aim is contribute in torsional vibration th eory and their practical experiences used in damper s which are widely used in automobile application & civil applications. Projec t is sponsored by �Hodek vibration Technologies pvt ltd�,pune. This is largest dampers manufacturer of torsional vibration dampers for diesel engines. This report paper high lights a number of important considerations for the torsional viscous damper system as well as design philosophies to ass ess and mitigate the risk of torsional failures. Damping properties are of si gnificant importance in determining the dynamic res ponse of structures,and accurate prediction of them at the design stage,es pecially in the case of light-weight,wind-sensitiv e buildings,is very desirable. Unfortunately,damping parameters cannot be deduced deterministically from other structural properties and recourse is generally made to data from experiments conducted o n completed structures of similar characteristics. Such data is scarce but valuable,both for direct use in design and for fur thering research into the phenomenon of damping.
Structural Damage and Maintenance Day 1tti-sharmila
The aim of this presentation is to provide a consistent test/fail guideline for light and heavy vehicle inspections that are in line with the RTA Guide.
DigitalClone for Engineering Supporting Business Initiatives of Rotorcraft OE...Sentient Science
Sentient Science’s DigitalClone for Engineering Software is used by aircraft OEM, Suppliers and Operators to evaluate new and upgrade designs through materials science-based computational testing. The software is used throughout the design cycle to life critical components within the drivetrain. DigitalClone for Engineering enables certified digital models to be used by aircraft operators for asset management and supply chain planning and demand forecasting by simulating the models under multiple operational profiles.
The economics of reducing the cost of energy by 13% revenuesSentient Science
At what “speed” is your digitalization effort? There is no dispute, digitalization will play a key role in improving the sustainability of renewable energy sources through efficiency. The question remains – Where are you? While the industry has embraced the importance, water cooler conversations continue - How to monetize the true value of the data from digitalization?
The webinar outlines:
• How digitalization is applied across all corporate business units: asset management, operations management, risk management and supply chain management to reduce the cost of energy by up to 13%
• An industry operator case study on monetizing your digitalization efforts and understand the true ROI
• A digitalization value statement to enable operations management can provide a short-term watch list from 0-12 months enabling early detection prior to consequential damage beyond an operator's current capabilities – attributes to 2-3% of cost avoidance or cost savings.
Investigating Microstructural Alterations Leading to White Etch Cracks (WEC's...Sentient Science
This webinar outlines Sentient's development on their White Etching Crack capabilities to current materials-based prognostics life prediction models to better predict wind turbine gearbox life.
The formation of white etching cracks (WEC's) in bearings are known to be one of the major failure modes associated with gearbox failure. WEC's can casue premature failures in rolling element bearings occuring as early as 1-20% of the calculated L10 life.
According to the National Renewable Energy Laboratory's (NREL) gearbox failure database, 64% of gearboxes failed due to bearings and 25% due to gear failures. These failures are causing increased downtime and costly repairs.
The webinar outlines microstructrual alterations detected in LSIS and HSIS bearings and how microstructural alterations impact damage in gearboxes.
Norton lanserar en serie nya kapskivor speciellt avsedda för användning inom gjuterier. De nya kapskivorna är baserade på ett helt nytt bindemedelssystem, FoundryX, som uppges ha flera fördelar som snabbare och effektivare kapning.
Saint-Gobain Abrasives, under the Norton brand, has introduced in the market a new range of cut-off wheels for use in Foundry environments. This latest generation of cut-off products has been developed with the new Foundry X bond technology, engineered to increase cut rate and wheel life in all foundry cut-off applications.
Nortonin uudet FoundryX –katkaisulaikat valimoille takaavat paremman aineenpoiston ja niiden käyttöikä on pidempi. Katkaisulaikoilla, joissa on Norzon-hioma-ainetta, aineenpoisto voi tehostua 50%. FoundryX:ää käytetetään katkaistaessa valurautaa, ruostumatonta sekä runsas- ja matalaseosteista terästä.
Extend gearbox life with new components and methods 2015.04.21Sentient Science
Sentient Science hosted three different solution providers to discuss their approaches for life extension of wind turbine gearboxes. They will show their unique materials, torque dampener, and components and how these contribute to making wind turbine gearboxes last longer. The DigitalClone lifing model can take these benefits into account to validate the benefits.
1.a literature review on composite material for drive shaftEditorJST
A drive shaft is a pivoting part that transmits control from the motor to the differential apparatus of a
back wheel drive vehicles. The steel driveshaft is utilized as a part of car, these days this steel drive shaft is
supplanted by composite material drive shaft. It has been demonstrated that composite drive shafts are
successful in over-coming the confinements, for example, weight, vibrational qualities and basic speed. Their
flexible properties can be tailored to increase the torque as well as the rotational speed at which they operate.
The drive shafts are used in automotive ,aircraft and aerospace applications. The automotive industry is
exploiting composite material technology for structural components construction in order to obtain there
reduction of the weight without decrease in vehicle quality and reliability. The drive shafts are utilized as a part
of car, air ship and aviation applications. It is known that energy conservation is one of the most important
Indeed, the very way of the composite materials (fiber and resinous fastener) permits drive-shafts to be intended
to meet particular basic operational characteristics ,and accordingly custom fitted to coordinate the prerequisites
of individual applications. The consequence of this are utilized for demonstrating of carbon/epoxy composite
drive shaft and steel drive shaft utilizing CAD programming to perform static, clasping and modular
examination of both drive shaft utilizing ANSYS programming.
Project aim is contribute in torsional vibration th eory and their practical experiences used in damper s which are widely used in automobile application & civil applications. Projec t is sponsored by �Hodek vibration Technologies pvt ltd�,pune. This is largest dampers manufacturer of torsional vibration dampers for diesel engines. This report paper high lights a number of important considerations for the torsional viscous damper system as well as design philosophies to ass ess and mitigate the risk of torsional failures. Damping properties are of si gnificant importance in determining the dynamic res ponse of structures,and accurate prediction of them at the design stage,es pecially in the case of light-weight,wind-sensitiv e buildings,is very desirable. Unfortunately,damping parameters cannot be deduced deterministically from other structural properties and recourse is generally made to data from experiments conducted o n completed structures of similar characteristics. Such data is scarce but valuable,both for direct use in design and for fur thering research into the phenomenon of damping.
Structural Damage and Maintenance Day 1tti-sharmila
The aim of this presentation is to provide a consistent test/fail guideline for light and heavy vehicle inspections that are in line with the RTA Guide.
DigitalClone for Engineering Supporting Business Initiatives of Rotorcraft OE...Sentient Science
Sentient Science’s DigitalClone for Engineering Software is used by aircraft OEM, Suppliers and Operators to evaluate new and upgrade designs through materials science-based computational testing. The software is used throughout the design cycle to life critical components within the drivetrain. DigitalClone for Engineering enables certified digital models to be used by aircraft operators for asset management and supply chain planning and demand forecasting by simulating the models under multiple operational profiles.
The economics of reducing the cost of energy by 13% revenuesSentient Science
At what “speed” is your digitalization effort? There is no dispute, digitalization will play a key role in improving the sustainability of renewable energy sources through efficiency. The question remains – Where are you? While the industry has embraced the importance, water cooler conversations continue - How to monetize the true value of the data from digitalization?
The webinar outlines:
• How digitalization is applied across all corporate business units: asset management, operations management, risk management and supply chain management to reduce the cost of energy by up to 13%
• An industry operator case study on monetizing your digitalization efforts and understand the true ROI
• A digitalization value statement to enable operations management can provide a short-term watch list from 0-12 months enabling early detection prior to consequential damage beyond an operator's current capabilities – attributes to 2-3% of cost avoidance or cost savings.
Today, Wind Turbine OEMS utilize design load cases for the design and certification of wind turbines. These load cases are applied to ensure that turbines operate in a stochastic environment for at least 20 years.
However, reliability analysis should not stop at the design stage. Once a turbine is commissioned, consequent reliability analysis should also be conducted in order to understand how long a turbine will truly last at an installed location with the exposed environmental conditions.
View the Webinar Recording at:
http://sentientscience.com/resource-library/videos/webinar-recordings/wind-load-analysis-drivetrain-reliability/
According to a report by Windpower Engineering & Development, the cost to repair main bearings is one of the highest compared to other turbine systems ranging from $150,000 to $300,000. As fielded turbines age, the aggregated downtime has increased to more than 20,000 hours.
The presentation features:
- New capabilities in the DigitalClone Live software that predict early wear initiation in the main bearing raceways and rollers.
- How to understand the current health of the main bearing in a particular asset to mitigate damage prior to failure.
- How to reduce the cost of repair, currently ranging from $150K - $300K for each occurrence, and reduce the amount of downtime.
View the Webinar Recording at:
http://sentientscience.com/resource-library/videos/understanding-main-bearing-failures-mitigating-a-150k-300k-om-cost-2/
Take Control of Repowering – Be the One to Choose What’s Inside of Your MachineSentient Science
If you are considering repowering your wind turbines to take advantage of the PTC extension, we can tell you the projected life of your new gearboxes at a subcomponents level.
Learn How:
- The Importance of the Bill of Materials for your Individual Assets
- How to avoid costly downtime and loss of revenue with your newly repowered machine
- How to decide what gearbox and critical subcomponents to choose to optimize each asset
- The impact each individual component has on the life and power output of your repowered asset
View Webinar at:
http://sentientscience.com/resource-library/videos/take-control-repowering-one-choose-whats-inside-machine/
Assessing the Impact of Surface Treatment Solutions to Extend Asset LifeSentient Science
An industry case study that details Sentient’s DigitalClone® Lifing evaluation on the impact of REWITEC®’s additive DuraGear® W100 application.
Learn How:
- To reduce your COE and take control of your wind assets pro forma
- Lubrication additives effect the life of your wind turbine drivetrain
- Surface finish extends gearbox life
- To maximize asset value with lubrication upgrades
View the Webinar at:
http://sentientscience.com/resource-library/videos/assessing-impact-surface-treatment-solutions-extend-asset-life/
This is a unique webinar designed specifically for our customers that want to know more about the validation of our model. We put together this slide deck and discussion together to solely review our validations in the wind industry.
How Material Science Helps Operators with End of Warranty InspectionsSentient Science
Learn:
How your fleet is performing and learn how to develop a component watch list over the next 6 months.
Preventative maintenance strategies to extend the life of your fleet beyond 20 years.
The amount of future repairs, components or gearbox exchanges that are needed at the end of your warranty.
An enhanced view of your end of warranty options using material science-based computational testing.
Imminent DEATH from SCADA New Product IntroductionSentient Science
An introduction of new Imminent DEATH product from SCADA.
By now, you have heard about our lifing and life extension products. Join us for a webinar to discuss how we are marrying our imminent death product that understands the last months of an asset, component life including blades, gearboxes, main bearings, pitch bearings, generators, and other rotating equipment with our current life extension products. By doing this, you can better achieve a savings of 13% revenues or, specifically for the energy industry,1 cent per kW hour.
Gerald Curtin, Vice President of Asset Answers reviews the imminent death product and outlines the benefits of integrating SCADA data with material science models.
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
An Approach to Detecting Writing Styles Based on Clustering Techniquesambekarshweta25
An Approach to Detecting Writing Styles Based on Clustering Techniques
Authors:
-Devkinandan Jagtap
-Shweta Ambekar
-Harshit Singh
-Nakul Sharma (Assistant Professor)
Institution:
VIIT Pune, India
Abstract:
This paper proposes a system to differentiate between human-generated and AI-generated texts using stylometric analysis. The system analyzes text files and classifies writing styles by employing various clustering algorithms, such as k-means, k-means++, hierarchical, and DBSCAN. The effectiveness of these algorithms is measured using silhouette scores. The system successfully identifies distinct writing styles within documents, demonstrating its potential for plagiarism detection.
Introduction:
Stylometry, the study of linguistic and structural features in texts, is used for tasks like plagiarism detection, genre separation, and author verification. This paper leverages stylometric analysis to identify different writing styles and improve plagiarism detection methods.
Methodology:
The system includes data collection, preprocessing, feature extraction, dimensional reduction, machine learning models for clustering, and performance comparison using silhouette scores. Feature extraction focuses on lexical features, vocabulary richness, and readability scores. The study uses a small dataset of texts from various authors and employs algorithms like k-means, k-means++, hierarchical clustering, and DBSCAN for clustering.
Results:
Experiments show that the system effectively identifies writing styles, with silhouette scores indicating reasonable to strong clustering when k=2. As the number of clusters increases, the silhouette scores decrease, indicating a drop in accuracy. K-means and k-means++ perform similarly, while hierarchical clustering is less optimized.
Conclusion and Future Work:
The system works well for distinguishing writing styles with two clusters but becomes less accurate as the number of clusters increases. Future research could focus on adding more parameters and optimizing the methodology to improve accuracy with higher cluster values. This system can enhance existing plagiarism detection tools, especially in academic settings.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
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.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
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.
AKS UNIVERSITY Satna Final Year Project By OM Hardaha.pdf
Moventas XL Life Extension Program
1. Moventas XL Life Extension Program
Wesley Thomas
Vice President, Major Accounts
2. Sentient Science Overview – Core Goals, IP, and Industries
A Trusted Third Party Enabling Life Extension of Rotating Equipment in two ways:
1. Computational Testing & Demand Management for Suppliers 2. Asset Management for Operators
☑ Life Extension☑ Root Causes☑ Predict Earlier
Key Industries Served
WIND ENERGY
• 200,000 Global units
• 20,000 assets under contract
AEROSPACE
• Rotorcraft, Fixed Wing, & Defense
• (15 Years of R&D)
RAIL
• Wheel Rail Interface
• Top of the Rail Friction Modifier and
Lubricants
3. Sentient Science Current Approach to Gearbox/Bearing Modeling
• Physical tests are unavoidable, but also
expensive
• Sentient offers it’s DigitalClone technology to
provide a sophisticated virtual test Lab
• Virtual test labs can support physical tests
• Reduce costs
• Go into physical testing with more confidence
• DigitalClone can determine bearing and gear
life based on:
• Bearing material (Hardness, inclusions, etc)
• Surface finish (grinded, polished, superfinished,
etc.)
• Lubrication properties (pressure and heat
dependent viscosity, etc.)
Moventas XL Life Extension Program - WindEurope 2017
12. • Sentient conducted total 1,000 contact fatigue life simulations at 1.6 MW nominal torque and speed to predict the
dominant damage mode and life
- Pitting/spalling/wear
• PLH 1100.2 XL HSS bearings have relatively lower contact stresses
• White Etch Resistant and BO material quality is superior and have additional protection in the form of black oxide coating
• DigitalClone predicts both White Etch Resistant and BO bearings to meet L10 life of 20 years.
• However, BO predicted to have 3% probability of failure (POF) in less 20 years due to non-metallic inclusions. BO bearing
predicted to have relatively lower life under high torque/uprate conditions
• White Etch Resistant is superior in protection against white etch cracking resulting from heat treatment and improved
microstructure
• Sentient recommends to use White Etch Resistant bearing at HSS and HSIS bearing locations to avoid axial cracking
RVE Size: 2.45mm by 1.57 mm
No. of grains: 11,646
Bearing Contact surface
Advanced Technology #1: New Bearing Materials
White Etch Resistant and BO HSS Bearings Fatigue Life Simulation Results & Recommendations
Bearing Type L10-Fatigue Life , years Contact stress, GPa
HSS_White Etch Resistant 20 1.2 (UW-side)
HSS_BO 20 1.2 (UW-side)
Moventas XL Life Extension Program - WindEurope 2017
23. Ra = 0.3
Ra = 0.01
Ra = 0.6
Sun Pinion
with Ra, µm
Pmax
(MPa)
L10, cyc L50, cyc L90, cyc Life Factor
0.01 1781 9.08E+06 5.24E+07 6.67E+08 2.9x
0.3 1781 6.89E+06 3.75E+07 2.51E+08 2.2x
0.6 1781 3.10E+06 2.45E+07 1.77E+08 1x
PLH 1100 XL –Sun Pinion Fatigue Life Simulations and Recommendations
• Sentient conducted RCF simulations to predict the effect of
surface finish on Sun Pinion fatigue life
• Compared to Ra of 0.6 µm, Sun Pinion with 0.3 µm has a
significant increase in L10 fatigue life (by a factor of 2.2x)
• Increase in RCF L10 life (factor of 2.9x) with superfinish
(Ra: 0.01 µm)
• It is recommended to have Ra of 0.3 µm as a minimum surface
finish specification
Mixed-EHL pressure profiles for progressively smoother surface roughness
Ra: 0.01µmRa: 0.2µmRa: 0.3µmRa: 0.6µm
Advanced Technology #5: Improved Tooth Surface Roughness
Moventas XL Life Extension Program - WindEurope 2017
24. Summary of Findings
• Sentient completed modeling and comparison of PLH 1100, XL and Legacy Gearbox performance considering
design, manufacturing, materials, and loading conditions.
• Overall, PLH-1100 bearings have relatively lower stresses than Legacy Gearbox
• PLH-1100 integrated planet gear bearing design results in 8% lower contact stresses
• XL gearbox predicted to meet design L10 life of 20 years due to overall improvements in using advanced bearings, case
carburized ring gear, better surface finish and clean martensitic microstructure with no presence of detrimental inclusions
• Compared to Black Oxide (BO) bearing, White Etch Resistant bearing is superior in protection against white etch
cracking resulting from heat treatment and improved microstructure
• XL gearbox improvements can be reused in Moventas future gearbox designs, rebuilds and uptower repair services
Moventas XL Life Extension Program - WindEurope 2017
25. DigitalClone Recommendations
1. Sentient recommends to use White etch resistant case carburized bearing with high Cr-content in XL gearbox HSS
and HSIS bearing locations
2. Black oxide and case carburized integrated planet gear bearings with retained austenite of 20-25% is
recommended
3. For ring gear, case carburized martensitic microstructure with a case depth of about 1500 µm and case hardness
of >60 HRC is recommended
4. The following microstructural features need to be avoided or reduced for better fatigue performance
1. Needle-like non-metallic MnS and metallic TiN inclusions of size >30µm and higher inclusion density
2. Carbide banding
3. Oxide/intergranular oxidation sites
4. Grain coarsening and de-carburization layer
5. It is recommended to have Ra of 0.3 µm as a minimum surface finish specifications to reduce asperity interactions
and increase in XL gears and pinions RCF life
Moventas XL Life Extension Program - WindEurope 2017
26. SentientScienceCorp.-Proprietary/PrivateLevel1
Moventas GE 1.5 Extra Life Gearbox Upgrades - Summary
Integrated
Planet Gear
Bearing
Case
Carburized
Ring Gear
New Bearing
Materials for
High Speed Stage
Improved Tooth
Surface Roughness
In Gears
Improved
Gear Material
Specifications
=
BRG
1
BRG
2
Black oxide layer
+ White Etch Resistant
60.8 61.2 61.9 61.2 60.8
56.7
58.7
53.8
52 52.3
48.7
46.8 47
44.3
40.8 40.5
30
35
40
45
50
55
60
65
0 500 1000 1500 2000 2500 3000 3500
Rockwell:HRC
Depth: Microns
0.5Kg
GE 1.5 Extra Life Gearbox
Achieves 4x Life
Moventas XL Life Extension Program - WindEurope 2017
27. Thank you! Learn More and Meet the Team!
Sentient Presentation Schedule WindEurope 2017
1. Introducing DigitalClone Live
2. Duke Energy Case Study
3. Main Bearing RCA
4. How to Value Digitalization
5. DigitalClone Live Product Update
6. Why Data Science Alone Wont Lower the Cost
of Energy
7. Moventas XL Life Extension Program
9. Rewitec Additives to Extend Gearbox Life
10. DigitalClone Bearing Product Release
11. Wind Loads Modeling
12. Data Fusion: Material Science & Data Science
13. Drivetrain Modeling
14. Reducing Costs with Digitalization
Moventas XL Life Extension Program - WindEurope 2017
Editor's Notes
Trusted third party - help our customers extend life of their assets by understanding the material and quality of the components within a GBX)
Aerospace R&D since 2001
Been focused in wind industry the few years and we now have 20,000 assets under contract
If you had to test all Gearbox upgrades it would be very costly and time consuming
Physical testing in the field and in the lab takes a long time and is a very costly process. We are replicating the physical testing in the field with computational testing by looking at material science.
Computational testing – we simulate how the GBX impacts the life of specific assets
Material, surface finish – other modeling tools cannot look into this
Appropriate inventory access for gearbox replacement
Complete CMS strategy for reduced crane cost, scheduling multiple replacements, and minimized downtime
CMS = reduced crane cost, schedule multiple replacements, downtime due to sudden and unexpected failure, optimize spare part strategy
$32,000/MW per year to $40,000/MW/Year