【摘要】 针对传统气室外置式油气弹簧存在的结构复杂、空间布置较难等问题,提出了一种新型单气室油气弹簧结构.介绍了该油气弹簧的结构和工作原理,简化得到了其物理模型,并在仿真软件AMESim下搭建了其动力学模型,同时对油气弹簧样件进行了外特性试验,验证了仿真模型的精度.将建立的油气弹簧模型接入1/4车辆模型进行仿真,在不平路面下对是否装有该油气弹簧系统车辆的车身加速度和悬架动行程等指标进行仿真对比,研究了该油气弹簧对车辆平顺性的影响.结果表明:该新型油气弹簧可以显著减小车辆振动,提高车辆的行驶平顺性.更多还原

【Abstract】 To solve the difficulty of space assembling for traditional hydro-pneumatic springs due to the complex structures,a novel hydro-pneumatic spring with single gas cell was proposed.The structure and principle of the proposed hydro-pneumatic spring were introduced and simplified to obtain physical mo-del.The dynamic model was established by AMESim software.An external characteristic test for the hydro-pneumatic spring was conducted to verify the accuracy of dynamic model.One quarter of the vehicle model was built up to compare the simulations of the vehicles equipped with hydro-pneumatic spring and without hydro-pneumatic spring.The results show that the novel hydro-pneumatic spring can obviously enhance the vehicle ride comfort with decreased vehicle vibration.更多还原