Structures Group - Final presenttion 2012
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The document summarizes Delwar Hoque's responsibilities in structural analysis and design modifications for compressor components. It describes stress analysis conducted on the first and second stage rotors and stators to evaluate pressure loading and stresses at high rotation speeds. 3D prototyping of the design was funded for $1,900 and involved printing models over three weeks to assemble and test with a 0.2 mm tolerance. Future work involves further design modifications and vibration analysis.
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The document provides an overview of the Hullabaloop team's updated Hyperloop pod design from their senior design course at Texas A&M University. The key changes from their previous design include a redesigned lightweight carbon fiber structure, integration of the fairing into the structure, a new maglev levitation system or air bearing system, and improvements to various subsystems. The presentation compares the old and new designs and provides details on the structural, propulsion, safety, and control systems of the updated pod design.
Design of Axial Flow.pdf
Axial flow fans are commonly used for HVAC, ventilation and cooling applications. They operate on blade element theory and aim to have a free vortex velocity distribution. The design process involves selecting an optimal hub-to-tip ratio, developing velocity diagrams, designing the fan based on a free vortex model, and testing prototypes to validate performance. Dimensionless numbers help scale designs and testing to different sizes.
Turbo expander compressor
The turbo expander compressor are used to achieve cryogenic temperature by reducing the enthalpy of high pressure gas in refrigeration cycles of Oil and gas, Refining and Petrochemical Process. These slides covers the working process of Expander compressor, process applications of expander compressor, Preliminary sizing calculations, Auxiliaries associated with Expander compressor mainly focusing on Active magnetic bearing equipment and its control system.
Structures for high speed machines
HSM is a powerful machining method that combines high feed rates with high spindle speeds, specific tools and specific tool motion
SSBTR - M.Asaulov
This document summarizes the design of a small-scale bearing test rig. It includes the project aims to develop a test rig capable of testing bearings up to 4000 MPa of contact stress. It provides background research on bearing fatigue failure models. It specifies the requirements for the test rig including load capacity of 25kN radial and 60kN axial load, speed up to 3000rpm, and oil lubrication. It presents 3 concepts for the test rig design and provides detailed drawings and calculations for the inner housing, shaft, and loading system. The conclusion outlines further work needed to complete the design.
Team rhythmdesignathon
Team Rhythm from McMaster University proposes harvesting kinetic energy from subway tunnels using Archimedes spiral turbines. They would be installed in groups of three along sections where train speed is highest. The logarithmic blades are inspired by Archimedes turbines and capture energy from forced airflow. A gearbox increases rpm to power a generator, with estimates of 620 kWh generated annually. Safety, maintenance access, and material selection using composite blades are considered.
2 Robot Actuators and drive systems.ppt
The document discusses various types of actuators and drive systems used in industrial robotics. It describes pneumatic, hydraulic, and electric drive systems. For electric drives, it covers stepper motors, DC motors, AC motors, and direct drive motors. It provides details on the operation, benefits, and usage of each type of actuator and examples of their application in robot segments, joints, and end-effectors. The document aims to educate about the options for moving and positioning robot components.
2 Robot Actuators and drive systems.ppt
The document discusses various types of actuators and drive systems used in industrial robotics. It describes pneumatic, hydraulic, and electric drive systems, focusing on servo drives. For electric drives it covers stepper motors, DC motors, AC motors, and direct drive motors. It provides details on operation, benefits, disadvantages, and examples of each type of actuator and drive system. The goal is to help understand the options for moving and positioning robot components.
Elena Trifonova presentation-Project 015
The document provides details of a design project for a four high temper mill. A team was assigned to design the mill housing assembly. The housing assembly consists of major components like the mill housing weld assembly, middle blocks, work and back-up roll end stops, and hydraulic systems. Strength calculations were performed to check stresses in the housing. The design meets the minimum safety factor requirement. Drawings and specifications of individual housing components are included.
Aerodynamic Design of a Micro Air Vehicle SAE 2011 01-2626
The present research is due to study the performance of
engine-propeller cells to be used in the design of a Micro
Air Vehicle (MAV). MAV design conditions: weight less than 200gr, maximum size 30cm, to fly a distance of 200m, and to be able to carry a camera and chemical sensors.One of the goals of the study is to use commercial parts (engines and propellers) in order to reduce manufacturing cost. The experiments are made in a subsonic open-circuit wind tunnel. The results are the aerodynamic drag coefficient of the propeller-engine cell (engine off), the static thrust test realized with engine on and tunnel off, at different RPM and the dynamic thrust test with engine and tunnel on, at different
RPM and different tunnel flow velocity.
Aerodynamic Design of a Micro Air Vehicle: Study of Propeller-Engine Performa...
Aerodynamic Design of a Micro Air Vehicle: Study of Propeller-Engine Performa...Nelson García Polanco
The present research is due to study the performance of engine-propeller cells to be used in the design of a Micro Air Vehicle (MAV). Design conditions: weigh less than 200gr, maximum size 30cm, to fly a distance of 200m, and be able to carry a camera and chemical sensors. One of the goals of the study is to use commercial parts (engines and propellers) in order to reduce manufacturing cost. An experimental methodology was used to measure the followings variables for the engine-propeller cell: Thrust (T), velocity (RPM), cylinder head temperature (CHT), wind incident velocity (VD), aerodynamic drag (D), torque (Q) and velocity profile behind every propeller. Results: aerodynamic Drag Coefficient of the propeller-engine cell (engine off), for each propeller. Dynamic Thrust: test with engine and tunnel on, at different RPM and different tunnel flow velocity.Portfolio Presentation
Steven Coakley is a recent graduate of Northeastern University's Mechanical Engineering program. He enjoys mountain biking and designing mechanical systems. Some of his projects include designing a bracket to attach a 70 lb aluminum ring to a CT scanner, creating a fixture to test seal effectiveness at high pressures and temperatures, and designing an adjustable ratcheting wrench. He has skills in conceptualization, modeling, analysis, prototyping, and creating technical drawings from his coursework and co-ops.
Titan Rover CDR Presentation
This is one of the presentations I gave with my team, in the 2020-2021 school year, to demonstrate the final design of the Titan Rover senior design project that I co-led. Titan Rover is a legacy senior design project. Its main objective is to create a version of the Mars Rover for the University Rover Challenge.
High power four way hacksaw machine with modification
This document provides details on modifying the mechanism of a four-way hacksaw machine to increase production rates by minimizing idle time. It discusses using a scotch-yoke mechanism to drive four hacksaw blades simultaneously with a single motor. This would allow cutting of different metal materials at a higher rate and with improved accuracy. The objective is to save labor and time in cutting materials to achieve high productivity. Modifications to the scotch-yoke mechanism and addition of components like a dual scotch-yoke, hacksaw frames, and material holding vice are proposed and explained.
Applied Fluid Mechanics - Course Overview (AFD0)
This document provides an overview of a course on applied fluid mechanics for incompressible flow. The course is divided into two parts, with part 1 focusing on incompressible flow (60%) and part 2 on compressible flow (40%). Part 1 covers topics like the mechanic energy equation, piping systems, pumps, and applications. It is designed for engineering students and professionals working with moving fluids of constant density. The document outlines the structure, content, textbooks, and importance of understanding incompressible flow for engineering design and operations.
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dynopts helicrafter rotor using cfd and structural analysis
dynopts helicrafter rotor using cfd and structural analysis
Aerodynamic Design of a Micro Air Vehicle SAE 2011 01-2626
Aerodynamic Design of a Micro Air Vehicle SAE 2011 01-2626
Aerodynamic Design of a Micro Air Vehicle: Study of Propeller-Engine Performa...
Aerodynamic Design of a Micro Air Vehicle: Study of Propeller-Engine Performa...
High power four way hacksaw machine with modification
High power four way hacksaw machine with modification
Structures Group - Final presenttion 2012
- 2. Personal Responsibilities • Structural analysis on compressor • Axial and radial compressors • Design modifications • Administration • Scheduling meetings • Funding applications • 3D prototyping
- 3. First Stage Rotor Structural Analysis • Structural analysis • Rotation at 26,600 rpm • Pressure loading • Fillet size increased to 1.5 mm Material: PH13-8 Mo Yield strength: 1482 MPa
- 4. First Stage Stator • Pressure loading from CFX • High stress concentrations
- 5. Second Stage Rotor • Rotation at 26,600 rpm • Pressure loading • Fillet adjusted
- 6. Second Stage Stator • Pressure loading from CFX • High stress concentrations
- 7. Impeller Structural Analysis • Rotation at 26,600 rpm • Pressure loading
- 9. Compressor and Shaft Coupling • Three curvic grooves • Four bolt holes
- 10. Full Assembly
- 11. First Stage Coupling Stresses
- 12. First Stage Coupling Stresses Maximum stress: 277 MPa
- 13. Second Stage Coupling Stresses
- 14. Second Stage Coupling Stresses
- 17. 3D Prototyping • Total funding = $1,900 • Three weeks to print models • One week to assemble
- 18. 3D Prototyping • STL files • Triangular elements • Tolerance of 0.2 mm for tight fit • Support materials • Wax • Plastic
- 20. Future Work • Design modification • Stators • Impeller • Vibration analysis • Lifing
- 21. Questions?