双气室油气悬架系统车辆道路友好性分析  

Road-friendliness analysis of twin-accumulator hydropneumatic suspension vehicle

作　　者：林国问[1] 马大为[1] 乐贵高[1] 郭亚军[2] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]中国电子科技集团第38研究所,安徽合肥230088

出　　处：《机械设计》2014年第2期92-96,共5页Journal of Machine Design

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.

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 

分 类 号：TJ812.6[兵器科学与技术—武器系统与运用工程]