液压减振器热-机耦合研究现状与展望

Thermo-Mechanical Coupling of Shock Absorber-Current Research State and Future Directions

为总结和分析汽车液压阻尼减振器热-机耦合建模与优化设计的研究进展和发展趋势,首先分析了减振器温升对减振器阻尼特性、结构寿命及整车性能带来的危害,进而从减振器热-机耦合模型的建立、带有温度补偿的新型减振器设计以及半主动控制方法等几方面进行了综述。提出了切实可行的减振器热-机耦合研究技术路线,即建立热-机耦合模型、基于热-机耦合模型的减振器优化设计、基于整车性能的悬架优化设计以及基于温度补偿的新型减振器设计,最后指出设计具有应用级别的馈能式减振器是解决温升危害的一种有效途径。

This paper presents a state-of-the-art review of significant research performed in the area of thermo-me- chanical coupling of shock absorber. Firstly, the influence of increasing oil temperature on damping force, the handling and comfort behavior are introduced. Then articles and patents on modelling of thermo-mechanical coupling and new types of dampers with temperature compensation and semi-active control method axe reviewed. Thus a feasible research plan is developed, which includes thermo-mechanical coupling comprehensive modeling and optimization design of shock absorber based on the above modal. The suspension is optimally designed according to the full vehicle perform- ance, and new types of dampers is designed in terms of temperature compensation. Finally, it is pointed out that the design of practical energy regenerative damper is an effective approach to remove the harmful influence of increasing temperature.