基于Matlab的橡胶气囊隔振系统非线性数值分析及特性试验

Nonlinear Numerical Analysis of Rubber Airbag Vibration Isolation system Based on Matlab and Characteristic Test

从车辆动力学方面考虑,悬架系统应保持良好的平顺性。橡胶气囊隔振系统由空气弹簧、蓄能器和连接二者的管道三个主要部分组成。通过使用Matlab软件分析橡胶气囊隔振系统非线性数值模型,对悬架刚度、阻尼因子和传递率进行仿真并与试验进行对比,发现上述三个特性所反映的悬架性能与悬架部件的尺寸密切相关。通过仿真分析及试验结果对比,文章提出了一种隔振系统低频下的优化策略。

Considering from the vehicle dynamics,the suspension system should maintain a good ride.The rubber airbag vibration isolation system consists of three main parts:an air spring,an accumulator and a pipe connecting the two.By using Matlab software to analyze the nonlinear numerical model of rubber airbag vibration isolation system,the stiffness,damping factor and transfer rate of the suspension are simulated and compared with the test,and it is found that the suspension performance reflected by the above three characteristics is closely related to the size of the suspension parts.Through simulation analysis and comparison of experimental results,an optimization strategy for vibration isolation system at low frequency is proposed.