以压电驱动精密流量阀的阀芯及其周围流场为研究对象，通过建立有限元模型，应用Workbench平台对阀芯及其周围流场进行流固耦合分析。首先通过Fluid Flow（CFX）模块对流体域进行流场分析，得到阀稳态时的内部流体压力场的分布规律；再将流体分析结果导入Static Structural（Ansys）模块，对阀芯固体域进行静力学分析，得到流固耦合作用下阀芯的静变形云图及Von Mises应力云图。根据流固耦合分析结果，对阀芯进行结构参数优化。优化后，在保证阀芯工作可靠性的条件下，阀芯体积减少了13.5%，实现了阀芯的轻量化。
Taking piezodriven precision flow control valve spool and the flow field around it as the research object,the finite element model was established,and fluidstructure interaction of valve spool and the flow field around it were analyzed by using Workbench platform.Flow field analysis was carried out for flow domain by Fluid Flow (CFX) module firstly to obtain the distribution of internal fluid pressure field when valve is in steady state,then the fluid analysis results was introduced into Static Structural (Ansys) module，static analysis was carried out for spool solid domain to obtain the static deformation and Von Mises stress of spool under the fluidstructure interaction.According to the results of fluidstructure interaction analysis,the spool structural parameter was optimized . The optimization results show that under the condition of ensuring the reliability of the spool,the volume of spool is decreased by 135% and the goal of volume lightweight is achieved.
ZHANG Ruihua, WU Qifan, YI Jian, XIAO Jun, CHENG Yuchen. Structure Optimal Design of Piezodriven Precision Flow Control Valve Spool[J]. Lubrication Engineering,2016,41(5):97-101.