A universal dynamical model of dual-chamber air springs with experimental validation

Experimentally and theoretically, this paper combines thermodynamics, aerodynamics and structural dynamics to give a universal dynamical model of dual-chamber air springs, with physical meanings of each stiffness and damping term. An indicator experiment was designed to verify the theory proposed in...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part D, Journal of automobile engineering Journal of automobile engineering, 2023-09, Vol.237 (10-11), p.2553-2564
Main Authors: Wu, Mingyu, Hou, Jie, Tong, Hao, Wang, Jing, Yin, Hang, Li, Junwei, Zhao, Haoxing, Li, Yaochao, Shan, Shuai, Wei, Yintao
Format: Article
Language:English
Subjects:
Air springs
Chambers
Damping
Dynamic characteristics
Dynamic models
Hysteresis
Springs (elastic)
Stiffness
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Summary:Experimentally and theoretically, this paper combines thermodynamics, aerodynamics and structural dynamics to give a universal dynamical model of dual-chamber air springs, with physical meanings of each stiffness and damping term. An indicator experiment was designed to verify the theory proposed in this paper. The experimental results show that the dynamic stiffness model can well reflect the hysteresis characteristics and the variable stiffness characteristics of the dual-chamber air spring. It can also clearly reveal the frequency dependence of the dynamic stiffness. Finally, based on the derived model, the influence regulation of each parameter term on the dynamic stiffness amplitude and hysteresis phase angle is given numerically. The results show that each term can influence different dynamic characteristic of the dual-chamber air springs. The conclusions of this article can provide positive guidance for the vehicle dynamics matching and design of air springs.
ISSN:0954-4070
2041-2991
DOI:10.1177/09544070221111645