Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel...
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![Page 1: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/1.jpg)
Motorcycle Chatter AnalysisMotorcycle Chatter Analysis
Professor GrandaME270 Fall 2007
December 13, 2007
Aaron CourterDaniel Monterrubio
![Page 2: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/2.jpg)
ObjectiveObjective
Background Information– Video Demonstration
Analysis of Vehicle DynamicsBond Graph AnalysisExpected ResultsContinued Analysis
![Page 3: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/3.jpg)
Background InformationBackground Information
Engine BrakingChatter-VibrationWhen phenomenon occurs
![Page 4: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/4.jpg)
Video DemonstrationVideo Demonstration
![Page 5: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/5.jpg)
Analysis of Vehicle DynamicsAnalysis of Vehicle DynamicsFBDτEB = Engine Braking Torque
FEB = Engine Braking Force on Ground
Ff=uN= Frictional Force between Tire and Ground
wT=Angular Velocity of Wheel and Tire
N=Normal Force When FEB>Ff
Slip Occurs
Insert FBD hand drawn
![Page 6: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/6.jpg)
Analysis of Vehicle DynamicsAnalysis of Vehicle Dynamics
FBD Cont’ When Slip Exists, FEB > Ff , Chatter function
(Source Flow) is required.
FEB-Ff a Chatter Function Input Assumptions
– wT is held constant during deceleration– τEB is decaying input function (TBD) which
proportional to the difference of the Vehicle Velocity and the Tire Velocity (v=r*wT)
![Page 7: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/7.jpg)
Analysis Cont’Analysis Cont’
Physical Model
![Page 8: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/8.jpg)
Bond Graph AnalysisBond Graph Analysis
Bond Graph
![Page 9: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/9.jpg)
Bond Graph Analysis Cont’Bond Graph Analysis Cont’
Simulation Input
Chatter Function (input)
0
5
10
15
20
FEB-Ff
So
urc
e F
low
in
pu
t
![Page 10: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/10.jpg)
Expected ResultsExpected Results
![Page 11: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/11.jpg)
Continued AnalysisContinued Analysis
Simulink AnalysisS-Function AnalysisAnalysis of Slipper Clutch (Thesis?)
– Evaluation of Optimum Spring Constant– FEA (ME 272)– Vibration Analysis– Solid Model Animation
![Page 12: Motorcycle Chatter Analysis Professor Granda ME270 Fall 2007 December 13, 2007 Aaron Courter Daniel Monterrubio.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649f1a5503460f94c2f9db/html5/thumbnails/12.jpg)
Questions?Questions?