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- Title
汽车八自由度模型动态仿真研究.
- Authors
阙晓宇; 田国英; 方涛; 温科; 叶豪
- Abstract
The vehicle vibration system is a very complex system. In order to accurately reflect the vibration of the whole vehicle, based on certain assumptions, the eight degrees of freedom vibration model for a car was established by using Newton method in Matlab software. Based on the analysis of vehicle dynamic response characteristics in time doroain, a four-wheel correlation road model was established based on filtered white noise and the second-order Pade algorithm. The accuracy of the road surface was verified, and it was used as the excitation input to the vehicle vibration model. The Newmark explicit integration method was used to solve the problem. The time-domain signal of each response was transformed into the frequency-domain response signal, and compared with the frequency-domain simulation of the vibration systan. The results show that the model has good reliability and fast solution speed. Furthennore, the influences of the position of body mass center, suspension stiffiiess, tire stif&ess and suspension damping on the comfort of driver and body centroid were ftirther studied. Based on the original vehicle parameters, suggestions for improving vehicle comfort were put forward.
- Publication
Journal of Shanghai University of Engineering Science / Shanghai Gongcheng Jishu Daxue Xuebao, 2020, Vol 34, Issue 4, p337
- ISSN
1009-444X
- Publication type
Article