Stiffness Matching and Ride Comfort Optimization of Heavy Vehicle's Suspension Based on ADAMS

Abstract:

In order to reasonably match suspension stiffness and realize the optimization of vehicle ride comfort, a time-domain virtual prototyping model of the 8×4 heavy vehicle is established based on dynamic software ADAMS, and its vertical vibration responses are simulated and analyzed on road level B. After that, an optimal design method for heavy vehicle’s suspension system is put forward. In this proposed method, the first, the second axle suspension stiffness and the balance suspension stiffness are taken as the optimal variables and the maximum values of Z-direction power spectral density (PSD) of the cab and cargo boxes mass center are chosen as the optimal target. By using SQP (Sequential Quadratic Programming) algorithms to conduct optimizing calculation, thus the optimal suspension stiffness parameters are obtained, which promotes and improves the heavy vehicle’s ride comfort.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 1734-1738
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.1734
• Online since: December 2010
• Authors: Hui Pang, Hong Yan Li, Zong De Fang, Ji Feng Wang
• Keywords: Adam, Heavy Vehicle, Ride Comfort Optimization, Stiffness Matching, Suspension

References

[1] Yu Zhisheng. Car theory[M]. (3rd edition, in Chinese). Tsinghua University Press, (2002).

[2] J. Slattengren. Utilization of ADAMS to predict tracked vehicle performance [C]∥SAE Paper, 2000-01-0303.

[3] P. S. Rao, D. Roccaforte, R. Campbell. Developing an ADAMS model of an automobile using test data [C]∥SAE Paper , 2002-01-1567.

DOI: 10.4271/2002-01-1567

[4] Liu Huaixin. Car design[M]. (in Chinese). Tsinghua University Press, (2001).

[5] Howard G. Chassis & Suspension Engineering[M]. London Osprey Publishing Limited, (1987).

[6] J. Park, D. A. Guenther, G. J. Heydinger. Kinematic suspension model applicable to dynamic full vehicle simulation[C]∥SAE Paper , 2003-01-0859.

DOI: 10.4271/2003-01-0859