摘要
在考虑沿程压力损失、局部压力损失和活塞杆与密封装置间的动摩擦等情况下,建立了某越野车用油气悬架非线性模型。通过仿真,研究阻尼阀系的参数对油气悬架阻尼特性的影响。结果表明,在其他参数不变的情况下,可通过更换具有不同锥角的阀芯,方便地获得不同的阻尼特性。仿真结果与试验数据基本吻合,验证了所建油气悬架数学模型的正确性。
With considerations of the piping losses,local losses and dynamic friction between piston stem and sealing,a nonlinear model for the hydro-pneumatic suspension of a off-road vehicle is built,with a simulation conducted to investigate the effects of the parameters of damping valves on the damping characteristics of hydropneumatic suspension.The results show that,when other parameters remain unchanged,different damping characteristics can be handily obtained by changing the valve cores with different flow angle.The simulation results basically agree well with test data,verifying the correctness of hydro-pneumatic suspension model built.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第8期936-940,共5页
Automotive Engineering
关键词
油气悬架
试验与仿真
阻尼特性
hydro-pneumatic suspensions
test and simulation
damping characteristics
