摘要
针对装有油气悬架的车辆在实际应用中所面临的可靠性问题,提出了一种以油气悬架和螺旋弹簧共同作用提供弹性力的复合悬架.结合一种越野车悬架系统参数,给出了复合悬架刚度参数的匹配方法,对复合悬架和油气悬架系统的工作压力、载荷特性及刚度特性进行了对比,并通过仿真进一步对比了其平顺性评价指标.结果表明,复合悬架与油气悬架相比,在降低系统压力,提高可靠性的同时,保证了良好的越野平顺性,更适合于越野车辆.
Faced with the poor reliability of hydro-pneumatic suspension installed on .off-road vehicles, a composite suspension is designed, where the elastic force is supplied by both the helix spring and hydro-pneumatic suspensions. The helix spring and the hydro-pneumatic suspension are used in parallel. The method for composite suspension stiffness matching is proposed based on its use on an off- road vehicle. The working pressure, load characteristics and stiffness characteristics of the composite suspension system are compared with that of the hydro-pneumatic suspension, and the vehicle body vertical acceleration, suspension travel and dynamic load of wheels are compared by simulation. The result showed that the composite suspension is more suitable for using on off-road vehicles than hydro-pneumatic suspension, the composite suspension can reduce the work pressure, improve the reliability, and thus enhancing the riding comfort.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2007年第5期399-402,共4页
Transactions of Beijing Institute of Technology
基金
国家部委预研项目(1030020440602)
关键词
油气悬架
螺旋弹簧
刚度匹配
hydro-pneumatic suspension
helix spring
stiffness matching
