摘要
基于2自由度悬架模型,研究减振器阻尼对平顺性的影响,进而确定阻尼比。根据系统的微分方程,用Simulink建立了零均值白噪声路面速度谱输入的非线性悬架系统模型,进行重复多次仿真得出系统响应量的数值序列。计算到平顺性指标,绘制其等值线图,可以观测压缩行程和复原行程阻尼对平顺性的影响,从而确定合适的阻尼。
The influence of shock absorber＇s damping ratio on ride in a 2 DOF model is studied,for the purpose of finding out the best relative damping coefficients.According to the differential equations of the system,a nonlinear suspension system model with zero mean white noise velocity input is built with Simulink.The numerical response matrixes of the system are obtained by repeat of simulation.The ride indexes are calculated and plotted,aim at showing the influence of damping ratio on ride.Then we can determine damping ratios easily.
出处
《农业装备与车辆工程》
2010年第12期28-31,共4页
Agricultural Equipment & Vehicle Engineering
