摘要
基于ABAQUS平台建立了发动机燃气摇摆装置——推力室对接法兰处用U-E密封有限元模型,采用ABAQUS/Standard模块隐式算法求解了U-E密封与法兰副相接触时,UE密封环结构参数;主、副密封唇压缩量发生变化时,压缩量与密封环等效Mises应力、塑性应变和接触压强之间的关系等。由此得到了U-E密封材料选择准则与密封结构设计准则,采用该设计准则设计、制造的U-E密封通过了37.5 MPa液压强度和25 MPa高压气密试验。试验结果表明:U-E密封设计准则正确、合理、适用,密封性能满足使用要求。
The finite element model of a U-E-type metal sealing used between engine gas swing device and thrust chamber mating flange is established based on ABAQUS software. Using The implicit algorithm of ABAQUS standard module is adopted to solve the structural parameter of U-E- type metal sealing ring being in contact with the flange pairs, and the relation among Von Mises stress, plastic strain and contact pressure intensity when the lip compression of the main sealing and the side sealing is changed. The criteria of selecting material and designing sealing structure of U-E- type metal sealing were obtained on the basis of the above measures. The new U-E-type metal sealing produced in abiding by the design criteria has passed 37.5 MPa hydraulic pressure test and 25 MPa tightness test. The result shows the criteria is reasonable and practicable, and the sealing performance of U-E- type metal sealing ring meets the application requirements.
出处
《火箭推进》
CAS
2015年第3期66-72,共7页
Journal of Rocket Propulsion
关键词
U-E密封
密封性能
结构设计
设计准则
U-E-type metal seal
sealing performance
structure design
design criteria
