履带车辆行驶平顺性仿真及试验

基于虚拟样机技术,结合三维造型软件、有限元分析和多体动力学软件,对履带车辆行驶平顺性仿真技术进行了研究.建立履带车辆的刚柔混合虚拟样机模型及随机不平路面模型,生成平顺性仿真模型系统,通过在F等级随机路面行驶仿真,得到车辆行驶时驾驶员座椅位置振动加速度曲线,根据评价标准对车辆进行平顺性评价,并与实车试验测试数据的计算结果进行对比分析.结果表明,仿真模型系统及评价方法合理,可以为提高和改善履带车辆的机动性能提供有效的方法和手段.

Simulation and Test of Tracked Vehicle Ride Comfort

Based on virtual prototype technology,combined with three-dimensional modeling,FEA and multi-body dynamics software,simulation technology of tracked vehicle ride comfort was studied.A mixed rigid-flexible virtual prototype of a certain tracked vehicle and a random uneven road were created to form the simulation system of ride comfort.The ride comfort simulation was carried out on the F-level virtual road,from which the acceleration curves at the location of driver were captured.According to the evaluation standards,the ride comfort of the tracked vehicle was analyzed and evaluated.By compared with the actual tests and computing results,it shows that the simulation model system and evaluation method are reasonable and feasible for analyzing and improving the mobility of tracked vehicle.