林区筑路施工车辆悬架系统仿真试验与优化

Simulation and Optimization of Suspension System of Vehicles for Forest Road Construction

以林区筑路施工用自卸车辆为研究对象,运用机械系统多体动力学仿真软件ADAMS建立了整车的虚拟样机模型,并针对该车辆前悬架系统进行了计算机仿真分析,获得了主销内倾角、主销后倾角、前轮前束角以及前轮外倾角的运动学仿真变化曲线。并以主销偏置距为优化目标,对各参数进行了仿真试验分析与优化。结果表明,通过对林区筑路施工车辆的仿真试验分析,可切实改善该车辆的动态特性,提高车辆悬架系统设计的精度与效率,从而提高林区筑路施工车辆的行驶平顺性。

A whole virtual prototype model was established using ADAMS software, which is for multibody dynamics simulation, taking self-discharging vehicles for forest road construction as the study object. And then a computer simulation of suspension system of the vehicles was made. Simulation curves of kingpin inclination angle, caster angle, toe angle, camber angle and kinematics were obtained. All parameters were analyzed and optimized using the kingpin offset as the optimizing object. Results show that the dynamic characteristics of the vehicles could be improved effectively through simulation analysis, and the design precision and efficiency also increased; thereby the ride comfort of the vehicles for forest road construction was enhanced.