基于Matlab的油气弹簧特性试验数据处理研究

Research on the Data Processing of Hydro-pneumatic Suspension Characteristic Experiment Based on Matlab

基于Matlab编制了针对油气弹簧台架试验的数据处理程序,采用四阶多项式分别对压缩及拉伸行程力位移数据进行拟合,得到动静态特性曲线。利用三角函数拟合时间位移数据,通过函数关系得到速度数据,进一步得到油气弹簧阻尼力特性。采用该程序可批量处理台架试验数据,具有较高精度,提高了数据处理分析的效率。

The data processing algorithm based on Matlab for hydro-pneumatic suspension rack experiment was proposed.The4-order polynomialcurve fitting was applied on the force-displacement data of hydro-pneumatic suspension compression and extension processes andthe static characteristic curves were obtained.The relationship of displacement and time data was fitted with trigonometric functions,the velocitywas obtained by derivation and further the damping force characteristics were acquired.Batch of rack experiment data could be processedwith high precision and efficiency by applying this algorithm.