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 BudgetScheduleConclusions

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

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

8. Torque Measurement Devices Torque Arm Reactor Torque Sensor

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

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 New RTS required redesign of outer housing Previous Redesign CUP RTS Torque Arm

12. Design Setup Exploded ViewAssembled 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 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: Example:LabVIEW

22. PartQuantitySource Mfg Part # Cost (ea.) Total Cost Reactor Torque Sensor 1Interface53301560.001560.00 Aluminum1 Metal Supermarkets 111.43111.43 Steel1 Metal Supermarkets Metal Supermarkets 10.0010.00 Hall Effect Sensor 1Honeywell 276-1646 30.0030.00 Signal Conditioning Network FP 1 National Instruments FP1000355.00355.00 Thermocouple Module 1 National Instruments TC-120315.00315.00 Other Modules 2 National Instruments AI-110315.00630.00 Module Base 1 National Instruments TB-1171.00171.00 Isolated Terminal Base 1 National Instruments TB-3157.00157.00 Power Supply for the Modules 1 National Instruments PS-145.0045.00 Module Rail 1 National Instruments DIN7.207.20 Mass Airflow Meter Cable 1 TSI Incorporated 130377519.0019.00 Total3370.63 Master Parts List Projected Budget as of 2/15/05