铰接式自卸车橡胶悬架系统的动力学分析  

Dynamic analysis of rubber suspension system of articulated dump truck

作　　者：马铸[1] 许志华[2] 孙庆鸿[2] 孙蓓蓓[2] 张文明[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]东南大学机械工程系,江苏南京210096

出　　处：《建筑机械》2004年第4期67-69,72,共4页Construction Machinery

摘　　要：本文以AD250为例,建立了铰接式自卸车的橡胶悬架系统及整车的非线形数字化模型,在ADAMS中生成了等级路面后,以不同车速在空载和满载工况下对样机进行了车辆平顺性的仿真分析。结果表明前悬架橡胶弹簧刚度的非线性特性能满足驾驶室在不同载荷下具有等支承频率从而保持稳定的行驶平顺性要求;而后悬架系统在轻载荷下较之重载荷时具有较高的支承频率,从而会影响到车辆的整体行驶平顺性。本文的分析结果可为该系统进一步的优化设计提供理论和技术支持。Nonlinear virtual prototyping of XAD250 has been built based on topological analyses of suspension of AD250 articulated dump truck, and the method of simulating grade road in ADAMS has been described. Multi-body dynamics analyses of the ride comfort have been proceeded with different velocity and different load. Results indicated that the good and constant ride comfort of cab can be satisfied under different load because of the nonlinear properties of rubber springs of front suspension. Rear suspension system under light load has higher supporting frequency than under deadweight, which may result in instable ride comfort. The results provide a basis for the parameter optimization of suspension of articulated dump trucks.

关 键 词：铰接式自卸车 悬架 多体动力学 非线性 载荷 

分 类 号：TU6[建筑科学—建筑技术科学]