作　　者： (王若平）; (李新华）; (周鑫）;

机构地区： 江苏大学汽车与交通工程学院,江苏镇江212013

出　　处： 《重庆理工大学学报（自然科学）》 2017年第7期26-33,共8页

摘　　要： 针对某越野车双横臂前悬架,采用有限转动张量法,结合空间解析几何理论知识,推导车轮定位参数随车轮跳动量的变化规律,并与ADAMS仿真结果、实车设计基准值进行对比,据此验证所建模型的正确性。利用Mat lab软件,根据数学模型计算车轮等位参数的变化情况,在对计算结果分析的基础上,针对前轮前束角和轮距的变化范围不满足设计要求的问题,借助ADAMS/Insight模块对悬架硬点位置进行灵敏度分析,并以此为根据进行二次函数响应面法拟合,最后根据拟合函数匹配硬点位置。优化分析结果表明:悬架的运动学性能满足设计要求,验证了此次优化设计的有效性。 According to off-road vehicles in front double wishbone suspension, using the finite rotation tensor method and combined with theoretical knowledge of analytic geometry, it derives the variation ofwheel alignment parameters with the wheel runout. And compared with the ADAMS simulation results and the value of the actual vehicle design basis, it verifies the correctness of the model. It using Matlab software to calculate changes in wheel alignment parameters based on a mathematical model. Based on the analysis of the results, for the problem of the range of front toe angle and tread design does not meet the requirements, and combined with ADAMS/Insight module, it has the sensitivity analysis of suspension hard points position. On this basis, it fits the function with the secondary response surface method and matches hard position according to the fit function. By optimizing analysis, kinematics of the suspension meets the design requirements and demonstrates the effectiveness of the optimal design.

关 键 词： 双横臂悬架 灵敏度分析 响应面法 优化设计