Reliability Analysis of Sealing Structure of Electromechanical System Based on Kriging Model

International Conference on Computer Information and Automation Engineering

计算机科学;运输工程

Zhang, F.^1 ; Wang, Y.M.^1 ; Chen, R.W.^2 ; Deng, W.W.^1 ; Gao, Y.^1

School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an

710129, China^1

Broad Homes Industrial International Co., Ltd, Changsha, China^2

关键词: Electromechanical systems;    Failure Probability;    Finite element numerical simulation;    Kriging model;    Reciprocating seals;    Seal rings;    Sealing performance;    Structural reliability;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/359/1/012054/pdf
DOI  :  10.1088/1757-899X/359/1/012054

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The sealing performance of aircraft electromechanical system has a great influence on flight safety, and the reliability of its typical seal structure is analyzed by researcher. In this paper, we regard reciprocating seal structure as a research object to study structural reliability. Having been based on the finite element numerical simulation method, the contact stress between the rubber sealing ring and the cylinder wall is calculated, and the relationship between the contact stress and the pressure of the hydraulic medium is built, and the friction force on different working conditions are compared. Through the co-simulation, the adaptive Kriging model obtained by EFF learning mechanism is used to describe the failure probability of the seal ring, so as to evaluate the reliability of the sealing structure. This article proposes a new idea of numerical evaluation for the reliability analysis of sealing structure, and also provides a theoretical basis for the optimal design of sealing structure.