采用单向流固耦合法的高压多路阀变形分析

Deformation Analysis of High Pressure Multi-way Valve Using Unidirectional Fluid Solid Coupling Method

针对高压多路阀体变形量受阀体内部流道中高压流体影响大的现象,采用Workbench中的单向流固耦合方法对高压多路阀体进行变形计算。采用Solidworks建立负载敏感多路阀装配体的三维模型,对三维模型进行网格划分,采用workbench计算平台对多路阀流体域和固体域进行耦合计算,对多路阀阀体结构进行计算研究。计算结果显示,多路阀体最大变形位于压力补偿腔流经换向阀腔的位置,最大变形量随着开口量增大而增大,当压力为35 MPa,开口量为5.7 mm时,最大变形量为4.49μm,阀体材料最大应力值和应变值分别为189.5 MPa和9.27×10^(-4).

In view of the phenomenon that the deformation of high-pressure multi-channel valve body is greatly affected by the high-pressure fluid in the internal channel of the valve body,the deformation of high-pressure multi-channel valve body is calculated by using the unidirectional fluid structure coupling method in workbench.The three-dimensional model of load sensitive multi-channel valve assembly is established by SolidWorks,the three-dimensional model is meshed,the coupling calculation of fluid domain and solid domain of multi-channel valve is carried out by workbench calculation platform,and the structure of multi-channel valve body is calculated and studied.The calculation results show that the maximum deformation of the multi-channel valve body is located at the position where the pressure compensation chamber flows through the directional valve chamber.The maximum deformation increases with the increase of the opening amount.When the pressure is 35 MPa and the opening amount is 5.7 mm,the maximum deformation amount is 4.49 um.The maximum stress and strain values of the valve body material are 189.5 MPa and 9.27×10^(-4),respectively.