Simulation and Experimental Study on Bouc-Wen Hysteresis Model of Leaf Spring
- Publication Type:
- Journal Article
- Citation:
- Qiche Gongcheng/Automotive Engineering, 2017, 39 (12)
- Issue Date:
- 2017-12-25
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| 板簧Bouc_Wen迟滞模型的仿真与试验研究_章杰.pdf | Published Version | 7.48 MB |
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© 2017, Society of Automotive Engineers of China. All right reserved. To study the effects of hysteretic characteristics of leaf spring, as an elastic component of dependent suspension system in special-purpose vehicles like mining vehicles, on vehicle performances, a dynamics model for leaf spring is created based on Bouc-Wen tribology theory, its dynamic force-displacement curves are obtained by both simulation and test with dynamic loading at different frequencies and magnitudes, and according to the results of test the parameters of Bouc-Wen model are identified by using least square method. The results of simulation well agree with test data, showing that the model built can accurately predict the dynamic hysteretic characteristics of leaf spring..Then, a vehicle model with consideration of the hysteretic characteristics of leaf spring is further established, on which the excitation spectra of A and E class roads with four wheels correlated are applied, to analyze the effects of hysteretic characteristics on vehicle performances, with the mean square root of mass center accelerations, the dynamic travel of suspension and tire dynamic force as evaluation indicators. The results indicate that the hysteresis of leaf spring is beneficial to improving the ride comfort and safety of vehicle on rough roads.
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