Simulation and Optimization Analysis of Exhaust Valve of Linear Compressor Based on Two-way Fluid-structure Interaction
Aiming at the problem of pressure loss and reflux caused by the fatigue damage of the exhaust valve of linear compressor and the mismatch of opening and closing time,two-way fluid-structure interaction is used to study the motion characteristics and stress changes of the valve plate of the linear compressor for household refrigerators. The changes of the valve plate profile in the flow field are analyzed,as well as the effects of different maximum valve lift and beam arm width on the maximum stress,flow rate loss,and pressure loss. The results show that during the operation,due to the obstruction of the central valve plate,the flow of fluid from the beam arm causes excessive deformation of the beam arm,which is the key to excessive stress. The method of optimizing the stress at the root of the valve plate is obtained from the design of the plate spring. After optimization,the maximum stress can be reduced by 24 MPa to allowable stress range of the material.
万方数据
维普
