越野车辆典型地形通过性建模与仿真Modelling and Simulation of Typical Terrain Trafficability for Off-Road Vehicle
郭占军;张为公;庞罕;
摘要(Abstract):
以某型8×8越野车辆为研究对象,对车辆的轮胎、悬架等关键模型进行了分析,得出了轮胎内压与轮胎刚度基本成线性关系的结论,建立了轮胎的粘弹性有限元模型;以多体动力学理论建立了车辆的8自由度动力学模型。对比分析了微分-代数方程组解法的优缺点,采用Gear算法实现了方程组的解算。实车试验与仿真结果对比表明,所建立的典型地形通过性仿真系统与实车测试有较好的吻合性。
关键词(KeyWords): 越野车辆;典型地形;通过性;建模
基金项目(Foundation):
作者(Authors): 郭占军;张为公;庞罕;
参考文献(References):
- 1 Manduchi R,et al.C Obstacle Detection and Terrain Classific-ation for Autonomous Off-Road Navigation.Autonomous Rob-ots,2005.
- 2 Ojeda L,et al.J.Terrain Trafficability Characterization with aMobile Robot.Bellingham:SPIE,WA,2005.
- 3 Weidong P,et al.Papelis Yiannis,He Yefei.A Vehicle-TerrianSystem Modeling and Simulation Approach to Mobility Analy-sis of Vehicles on Soft Terrain.Bellingham:SPIE,WA,2004.
- 4余志生.汽车理论.(第2版)北京:机械工业出版社,2005.