This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Application of Pulse Input Techniques to the Study of Tire Lateral Force and Self-Aligning Moment Dynamics in the Frequency Domain
Annotation ability available
Sector:
Language:
English
Abstract
This paper presents the application of pulse input techniques to study tire dynamics in the frequency domain. Many tire researchers analyze tire dynamics by means of studying the frequency response of tire output responses to sinusoidal frequency inputs, for example, the frequency response of tire lateral force to sinusoidal slip angle input. To replace expensive and time-consuming sinusoidal frequency tests, pulse techniques are applied to obtain frequency responses. A series of slip angle pulse input tests in various conditions (several normal forces, speeds and magnitudes of slip angle inputs) are executed on a pneumatic tire. The tire output responses to the slip angle pulse inputs are transformed into the frequency domain using discrete Fourier transform. Several rules of Fourier transform related to the study of tire dynamics are detailed. The frequency responses obtained by pulse techniques are validated by comparison with the results from sinusoidal frequency tests.
Recommended Content
Technical Paper | The Effects of Tire Cornering Stiffness on Vehicle Linear Handling Performance |
Technical Paper | TIRES AND HORSEPOWER |
Technical Paper | FORCES AND TORQUES ASSOCIATED WITH ROUGHNESS IN TIRES |
Topic
Citation
Lee, S., Heydinger, G., and Guenther, D., "The Application of Pulse Input Techniques to the Study of Tire Lateral Force and Self-Aligning Moment Dynamics in the Frequency Domain," SAE Technical Paper 950317, 1995, https://doi.org/10.4271/950317.Also In
New Developments in Vehicle Dynamics, Simulation, and Suspension Systems
Number: SP-1074; Published: 1995-02-01
Number: SP-1074; Published: 1995-02-01
References
- Pottinger, M. G. “Flat-Trac II machine helps in tire force, moment measuring,” Rubber and Plastic News March 19 1990
- Heydinger, G Grygier, P. Lee, S “Pulse Testing Techniques Applied to Vehicle Handling Dynamics,” SAE Paper 930828 1993
- Oppenheim, Alan V. Schafer, R. W. “Discrete-Time Signal Processing,” Prentice Hall 1989
- Lee, Seewoo “Development of New Dynamic Tire Model for Improved Vehicle Dynamics Simulation,” Ph.D. Dissertation The Ohio State University 1994