基于响应曲面法的某转向桥减振器支架结构设计

Structural Design of Shock Absorber Bracket for a Steering Axle Based on Response Surface Methodology

以某盘式转向桥的减振器支架为研究对象,利用响应曲面法,将支架最大工作Von Mises应力值作为响应对象,选取支架板材厚度、减振器固定端的竖直安装尺寸以及水平安装尺寸3个参数为响应因子进行试验设计分析,得到了支架最大工作应力值与上述因素的关系式;结合实际情况以及上述关系式确定了支架的结构参数;借助SolidWorks软件,以选定参数建立了支架模型,并进行了仿真分析验证。仿真结果表明:所得关系式具有较高的预测精度,可以用于支架的设计指导,为后续该款车桥的系列化产品研发提供了参考。

The shock absorber bracket of a disc steering axle was taken as the research object,and the maximum working Von Mises stress value of the bracket was taken as the response object,three parameters of the bracket such as plate thickness,the vertical and horizontal installation dimension of the fixed end of the shock absorber were chosen as the response factors,experimental design and analysis was carried out by using the response surface methodology(RSM),so the relationship equation between the factors above and the maximum working stress value was obtained.The structural parameters of the bracket were determined in combination with the actual situation and the equation obtained above.With the help of SolidWorks,the bracket model was established by using the selected parameters,and the simulation analysis and verification were carried out.The simulation results show that the obtained relation has high prediction accuracy and can be used for the design guidance of the bracket,which provides a reference for the subsequent research and development of the series products of this type axle.