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Analysis of Vehicle Chassis Transmissibility of Steering Shimmy and Brake Judder: System Modeling and Validation
Technical Paper
2007-01-2341
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the development of a simulation technology for analyzing vehicle chassis transmissibility for the vibrations induced by tire-wheel imbalance and brake torque fluctuation. A multi-body simulation model is created for the coupled front chassis system consisting of steering, suspension, floating sub-frame, tire-wheel and a virtual excitation rig. Non-linear elements, such as frictions of joints, displacement-dependent bushings and detailed hydraulic power assist system, are considered. The simulation model is validated extensively by a unique laboratory excitation test in both frequency and time domain under different levels of excitation. Good agreement between simulation and measurement is achieved, and example results are presented.
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Citation
Yu, J., Nutwell, B., and Brickner, B., "Analysis of Vehicle Chassis Transmissibility of Steering Shimmy and Brake Judder: System Modeling and Validation," SAE Technical Paper 2007-01-2341, 2007, https://doi.org/10.4271/2007-01-2341.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
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