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Dynamometer Redesign and Build for Future RIT Automotive Laboratory

This project focuses on redesigning a dynamometer for the RIT Automotive Laboratory, aiming to produce 4 to 6 units in-house. The presentation covers the design process, team members, mission statement, project overview, successes, failures, improvements, torque measurement devices, data acquisition system components, and software applications. The design includes a Torque Arm, Reactor Torque Sensor, Dyno Housing, and Data Acquisition System components. The dynamometer's electrical and mechanical aspects, budget, and schedule are also discussed, along with simulation results and future conclusions.

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Dynamometer Redesign and Build for Future RIT Automotive Laboratory

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  1. Dynamometer Redesign and Build for Future RIT Automotive Laboratory Project 05105 Sponsored by: Mechanical Engineering Dept, Dave Hathaway and Mark Steinke

  2. What is a dynamometer? • A dynamometer is an instrument used to measure the performance of an engine

  3. Presentation Structure • Work Breakdown Structure (WBS) • Mission Statement • Overview of Design Process • Overview of Last Year’s Design • Mechanical Aspect • Electrical Aspect • Budget • Schedule • Conclusions

  4. Team Members - WBS Team Leader Erin Canfield - ME Scheduling Overall Project Budget Jason Keuer - ME Simulation Graham Pennington - ME Mechanical Aspects Housing Design Chief Engineer John McDonald - ME Torque Measuring Sensors/Signals Muferihat Abduljelil - EE Electrical Aspects DAQ Cedric McClary - EE

  5. Mission Statement The mission of this design project team is to design a dynamometer that can be replicated in-house to produce between 4 and 6 units for use in the future RIT Automotive Laboratory

  6. Design Process • Recognize and Quantify the Need • Design Objectives and Criteria • Concept Development • Feasibility Assessment • Analysis of Problem & Synthesis of Design

  7. Successes: Impeller and housing design Sensor selection Failures: Seals allowed leakage No functioning DAQ system Improvements: DAQ system Housing design Torque measuring Overview of Project 04006

  8. Torque Arm Reactor Torque Sensor Torque Measurement Devices

  9. Torque Arm • Utilized in previous design • Used on current Land & Sea model (shown) TorqueArm Picture courtesy of LandandSea.com

  10. Reactor Torque Sensor(RTS) • Incorporated in the redesign • Utilizes 4 bonded strain gauges • Compact design • Easy installation Picture courtesy of transducertechniques.com

  11. Dyno Housing Comparison • New RTS required redesign of outer housing Previous Redesign Torque Arm CUP RTS

  12. Design Setup Exploded View Assembled View

  13. Simulation

  14. Simulation Results • Simulated with 60 psi pressure • Max. stress from simulation = 4285 psi. • Yield strength of 6061 Al. = 39,900 psi. • Maximum deflection of .00111 inches • Housing meets criteria for our design

  15. Data Acquisition System (DAQ)

  16. Components of DAQ • Transducers and Sensors • Signals • Signal Conditioning • Driver and Application Software

  17. Transducers/Sensors Devices that are used to convert physical phenomenon into electrical signal.

  18. Signals

  19. Signal Conditioning • Signal Conditioning is a method that maximizes the accuracy of a given data output by converting it to a readable range. • There are two types of signal conditioning: • Modular* • Integrated

  20. Driver Software • Software that creates communication between hardware devices that are used to collect/read data with the software that is used to analyze the data

  21. Application Software • A software that adds analysis and presentation capabilities to the data collected • Example: • LabVIEW

  22. Master Parts List • Projected Budget as of 2/15/05

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