摘要
为了分析双气室油气悬架系统对导弹发射车道路友好性的影响,基于双气室油气悬架导弹发射车二自由度单轮振动模型,借助AMESim/Matlab Simulink联合仿真技术,搭建了联合仿真模型。选用动态载荷系数、动态载荷应力因子及95百分位综合四次幂力作为道路友好性评价指标,进行联合仿真。结果表明:轮胎动载荷功率谱密度显示车身固有频率对轮胎动载荷影响较大,而轮胎对其动载荷影响较小。相同路面,车速越高,蓄能器关键参数变化越大。路面等级越高,道路友好性优于低等级路面相应的评价指标。
In order to analyze road-friendliness for missile launching vehicle with twin-accumulator hydro-pneumatic suspen- sion, a co-simulation model by using AEMSim/Matlab S^mulink was established base-d on 2-DOF single-wheel model. ＂Dynamic load coefficient＂, ＂dynamic load stress factor ＂and＂ the 95th percentage fourth power force＂ used as the criterions for road-friendliness and co-simulation was achieved. The results show that aa.tural frequen- cy of vehicle body is more important for PSD of tire dynamic load, and that of wheel is less important. In the same road, the higher the speed,the bigger the accumulator key parameters change. Road-friendliness in the high grade road is better than that in the low grade road.
出处
《机械设计》
CSCD
北大核心
2014年第2期92-96,共5页
Journal of Machine Design
关键词
导弹发射车
双气室油气悬架
道路友好性
联合仿真
功率谱密度
missile launching vehicle
twin-accumulator hy- dro-pneumatic suspension
road-friendliness
co-simulation
PSD
