solar electric boat drive train system design review stony brook university mechanical engineering...
TRANSCRIPT
![Page 1: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/1.jpg)
SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM
DESIGN REVIEW
Stony Brook UniversityMechanical Engineering
MEC 440 GROUP OKanchan Bhattacharyya
Daniel HuangHan John Tse
Ting Zhang Advisor: Dr. Anurag Purwar
![Page 2: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/2.jpg)
Background• This project describes the development of a surface piercing (Arneson)
drivetrain system for the annual collegiate Solar Splash Competition.• The purpose of the event is to build a single passenger solar electric boat to
compete in the sprint, solar endurance, slalom, and qualifying races. • Improvements made to the current drivetrain involve changing the propeller
type and speed, propeller shaft length and trim angle, motors.• The concept is a lighter, more robust surface piercing drivetrain with trim control
and two different gear ratios. It takes up half of space of the previous system and is uses less parts while including more features.
![Page 3: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/3.jpg)
Past Drivetrain Design
• Features• Twin Motors on independent mounting plates• One shaft with two different gear ratios
• Disadvantages• High center of gravity• Difficult to switch chain between gear ratios• Difficult access for maintenance and mounting• Takes up too much space• Sub optimal wiring layout (wires connect to
outside of the motors, left motor wires comes from back to the front and gets close to moving chain)
![Page 4: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/4.jpg)
Overview
• Features• Twin Motors on independent mounting plates• Two different gears on each motor shaft,
allowing for different gear ratios• One chain connects the three sprockets (third
output sprocket not shown)
• Advantages over current system• Configuration allows for two or one motors• Lower center of gravity• Ease of switching chain between gear ratios• Ease of access for maintenance and mounting
![Page 5: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/5.jpg)
Overview
![Page 6: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/6.jpg)
Internal Drivetrain
• Spring Loaded Roller Chain Tensioner• Interchangeable Gears• One or Two Motor Configurations
![Page 7: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/7.jpg)
Chain Tensioner
• One chain tensioner will be attached on one of the motor plates• UHMW polyethylene roller will push against the chain• Push down on the tensioner to create slack in the chain for removal
![Page 8: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/8.jpg)
Mounted Bearing Shaft Assembly
• Two mounted bearings support internal driveshaft• Driveshaft connected motors to the propeller shaft
![Page 9: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/9.jpg)
Constant Velocity and Universal Joint
![Page 10: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/10.jpg)
Detail Concept Designs (Housing Tube& Shaft)
• Housing Tube & Shaft Subassembly is the exterior part of the drivetrain
• Shaft is mounted through the use of two taper roller bearings at each end of the tube two support angular and axial forces
• Gimbal attaches to the transom to support the assembly while providing degrees of freedom for steering and trimming
![Page 11: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/11.jpg)
Detail Concept Designs (Piston Mount)
• Piston mount accommodates both steering and trimming pistons
• Rod ends and Clevis rod end allows for three degrees of freedom for each piston
• Steering piston is connected to the steering wheel and driven manually
• Trimming piston will be controlled electronically to give more precise control (trim angles will range from 0 degrees to 15 degrees)
• Piston assemblies are both hydraulically driven and commercially purchased
![Page 12: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/12.jpg)
Chain Tensioner
![Page 13: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/13.jpg)
Detail Concept Designs (Housing Tube& Shaft)
![Page 14: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/14.jpg)
Detail Concept Designs (Internal Shaft)
![Page 15: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/15.jpg)
Internal Shaft Stress Analysis
![Page 16: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/16.jpg)
Detail Concept Designs (Housing Tube& Shaft)
![Page 17: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/17.jpg)
Transmission of Power Demonstration
https://drive.google.com/file/d/0BxUttcbN-ShDYWc3LUljcFdoZE0/view?usp=sharing
![Page 18: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/18.jpg)
Trimming and Steering Demonstration
https://drive.google.com/file/d/0BxUttcbN-ShDaG5OZlYtSUJJMFE/view?usp=sharing
https://drive.google.com/file/d/0BxUttcbN-ShDOXhLR2QxYXpqZjQ/view?usp=sharing
![Page 19: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/19.jpg)
Cost Analysis
![Page 20: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/20.jpg)
Cost Analysis (Cont’d)
![Page 21: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/21.jpg)
Cost Analysis (Cont’d)
Total $579.52
![Page 22: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/22.jpg)
Acknowledgements• Advisors• Dr. Anurag Purwar• Dr. Jeff Ge• Dr. Thomas Rosati
• University• Henry Honigman• Joe Schurz• Bob Martin• Department of Mechanical Engineering• CEAS• Solar Racing Team
![Page 23: SOLAR ELECTRIC BOAT DRIVE TRAIN SYSTEM DESIGN REVIEW Stony Brook University Mechanical Engineering MEC 440 GROUP O Kanchan Bhattacharyya Daniel Huang Han](https://reader036.vdocuments.net/reader036/viewer/2022062720/56649f0d5503460f94c2182d/html5/thumbnails/23.jpg)
THANK YOU