基于ISIGHT平台的斯特封密封结构优化设计  

Optimization Design of Step Seal-ring Based on ISIGHT Platform

作　　者：杜晓琼 陈国海[2] 闫晓亮 赵永亮 DU Xlao-qiong CHEN Guo-hai YAN Xiao-liang ZHAO Yong-liang(Aviation Equipment Research Institute, AVIC Qing-an Group Co. , Ltd. , Xi＇an, Shaanxi 710077 Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning 116024)

机构地区：[1]中航工业庆安集团有限公司航空设备研究所,陕西西安710077 [2]大连理工大学工程力学系,辽宁大连116024

出　　处：《液压与气动》2017年第8期14-19,共6页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(51478086)

摘　　要：针对某型号液压作动筒中的斯特封密封结构进行了优化设计。首先借助ANSYS有限元软件分析了高压对斯特封密封结构中米塞斯应力分布、接触压力分布及接触宽度的影响,并运用APDL语言对斯特封密封结构进行了参数化建模。然后基于ISIGHT优化软件,对斯特封进行了试验设计,确定了影响唇口处最大接触压力及接触宽度的关键因素,并采用智能优化算法对斯特封滑环进行优化设计。在满足密封要求的前提下,优化后的结构保持接触宽度不变,使得唇口处的最大接触压力下降了17.3%,减小了唇口处的磨损。获得的优化方案为密封结构设计提供了一种新的思路。The optimization design of step seal-ring for a certain hydraulic actuator is described. Firstly, the influ- ence of high pressure on the mises stress distribution, contact pressure distribution and contact width in the sealed structure is analyzed by ANSYS, a finite element method software. Meanwhile, the parametric modeling of step seal-ring is established by APDL language. Based on the optimization software ISIGHT, the key factors that influ- ence the contact pressure and contact width of the lip are determined by the experimental design approach. At the same time, the intelligent optimization algorithm is used to optimize the step seal-ring. Under the premise of meet- ing the sealing requirement, the contact width of the new structure is unchanging and the maximum contact pressure of the new structure decreases by 17.3% compared to that of the original structure, and the wear of the lip is re- duced. The optimization scheme provides a new idea for the design of seal structure.

关 键 词：密封结构 斯特封 试验设计 优化设计 

分 类 号：TH137[机械工程—机械制造及自动化] TB42[一般工业技术]