两栖车抗倾能力下降原因分析与改善措施研究  

Analyses on the Factors of Reduction of Anti Rolling or Pitching for Amphibious Vehicle and Research on Improvement Methods

作　　者：宋桂霞[1] 赵又群[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《中国机械工程》2008年第4期486-490,共5页China Mechanical Engineering

摘　　要：为了尽可能减小两栖车辆在水中航行时车轮所产生的涡流损失,对两栖车车轮收放功能进行了改进,采用降低两栖车辆悬架系统定位点的方法来增大车轮的收起空间。采用ADAMS/CAR对悬架系统定位点降低后的前悬架及整车性能进行仿真,分析了悬架系统定位点降低所引起的抗倾能力下降的原因。采用增大螺旋弹簧刚度和稳定杆直径的方法来增大悬架的侧倾角刚度和纵向刚度,提高车辆的抗倾能力。仿真分析表明,改进后的两栖车仍具有不足转向特性,并且具有良好的行驶平顺性。In order to reduce vortex loss of amphibious vehicle wheels when it was running in water,the function of wheels＇ deploying and retracting was improved, suspension anchor points were lowered to extend space when wheels were retracted. Front suspension and vehicle performance were simulated by ADAMS/CAR in the case that suspension anchor points were lowered, the cause why the anti-roll capacity of vehicle degraded were analyzed. Helix spring stiffness and diameter of anti-roll bar were increased to improve heeling angle stiffness and longitudinal stiffness of suspensions, accordingly to improve anti-roll capacity of ameliorative vehicle. The simulation result shows that ameliorative vehicle has under steer characteristics, and well riding.

关 键 词：ADAMS 水陆两栖车 横向稳定杆 行驶平顺性 侧倾 悬架刚度 

分 类 号：U461[机械工程—车辆工程]