CAJ | 학술논문

针对中高压系统中，滑阀阀芯、阀套（或阀体）间配合间隙较小，且在使用过程中常出现卡紧现象，建立了液压滑阀的计算流体力学（Computational fluid dynamics，CFD）三维模型和稳态传热模型（FEA）。利用流固热耦合方法，分析黏性加热效应使油液温度升高导致阀芯变形的现象，得出阀芯在不同开口度和不同阀芯材料下的阀芯温度场分布与变形情况，为液压滑阀的设计计算提供了参考。
침대중고압계통중，활벌벌심、벌투（혹벌체）간배합간극교소，차재사용과정중상출현잡긴현상，건립료액압활벌적계산류체역학（Computational fluid dynamics，CFD）삼유모형화은태전열모형（FEA）。이용류고열우합방법，분석점성가열효응사유액온도승고도치벌심변형적현상，득출벌심재불동개구도화불동벌심재료하적벌심온도장분포여변형정황，위액압활벌적설계계산제공료삼고。
Aimed at the middle and high pressure system,because spool valve body and valve cover with smaller matching gap, and got stuck during application,the three-dimensional (3-D)Computational fluid dynamics (CFD)models and steady-state FEA thermal models were established separately. By using Thermal solid-fluid coupling methods,the phenomenon of viscous heating effect caused the fluid temperature increasing and the spool deformation were analyzed,and the temperature and distortion of the spool valve in the different opening and different spool materials were obtained. The results provide reference for calculation and design of the hy-draulic spool valve.