影响锥形喇叭口密封性的有限元分析

Finite element analysis of influence of cone horn mouth for sealing performance

为解决制动系统接头加注过程中出现的泄漏问题,将锥形接头的密封原理应用到泄漏原因分析中。首先,运用有限元分析软件ANSYS,建立了两组不同结构尺寸与接头密封性之间的关系,根据分析得到的结果,把每一组的接触状态分布图和位移矢量变形图进行了对比,找出了影响喇叭口接触密封性能的主要原因;然后,进行了生产工艺上的改进;最后,进行了密封性试验。研究结果表明,锥角差是影响密封性能的主要原因,并且改进后的喇叭口密封性能得到了显著提高。

In order to solve the problems of leakage for connections of the braking system in the process of filling,the principle of sealing was investigated to analyze the cause of leakage.Firstly,using the software of ANSYS,the relation between difference size of two groups and the sealing was established.According to the analysis results,the charts of displacement vector sum of every group were compared to find the main reason of the infiuence of horn mouth of sealing.Then,the conclusion was utilized to the improvement of production technology.Finally,the sealing was tested on the automobile.The research result shows that,the diffence of taper is the primary cause,and the performance of sealing is improved obviously after improvement.