过搓板路仿真与试验差异的主要因素分析

Analysis of Main Factors Between Test and Simulation Differences Running on Washboard Road

对比仿真与试验转向节轮心处受力在时域及频率的差异,以试验数据为基准分析衬套刚度、阻尼,动力总成系统,减振器阻尼及悬架KC特性等主要因素对仿真准确性的影响,然后改进模型并进行仿真分析,仿真结果与试验结果高度吻合,表明模型准确、可信。

This paper compares differences between simulated knuckle force with tested knuckle force in both time domain and frequency domain. Based on test data, it analyzes main factors that affect simulation accuracy, such as rubber elasticity, rubber damping, powertrain system, damper damping, suspension KC characteristics and so on. At last, it improves the vehicle model, and simulates analysis. The simulation result fits very well with the test data. This shows that the model is accurate and credible.