【摘要】 根据冲量与动量原理,计算了高速履带车辆第一负重轮辗压路面障碍时受到的冲击载荷,并将计算数据与试验数据进行对比,验证了计算方法的可信性;分析了冲击载荷的影响因素,提出了增大轮径、采用刚度非线性渐增特性的弹性元件等措施来降低撞击载荷。根据撞击时间、功率损耗,提出了采用具有预瞄传感功能的主动悬挂技术,通过及时收缩车轮来实现"跨越"路障,达到降低冲击载荷、提高车辆平顺性及负重轮耐久性的根本目的。更多还原

【Abstract】 The impact load under road obstacles rolled by No.1 road wheel of high-speed tracked vehicles is analyzed on the light of the principle of impulse and momentum.Prior experimental results demonstrate that the computation is effective for estimating the impact forces.Measures to increase wheel diameter and adopt elastic elements with rigidity non-linearity growing are proposed to reduce impact load after analysis of influence factors of impact load.According to the duration time and the power dissipation,a method of adopting an active suspension with preview control,which is able to recognize an uneven road surface and retract the road wheel to avoid bump in its path,is raised to buffer the violent impacts and improve the vehicles’ smooth-going and durability of road wheels.更多还原