Research on the reliability of friction system under combined additive and multiplicative random excitations

被引：21
作者：
Sun, Jiaojiao [1 ]
Xu, Wei [1 ]
Lin, Zifei [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Nat & Appl Sci, Xian 710072, Peoples R China
来源：
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2018年 / 54卷
基金：
中国国家自然科学基金;
关键词：
Friction system; Stochastic excitations; Stochastic averaging method; First passage failure; Reliability; INTEGRABLE-HAMILTONIAN-SYSTEMS; CELL MAPPING METHOD; 1ST-PASSAGE TIME; LINEAR-OSCILLATOR; WHITE-NOISE; FAILURE; MODEL;
D O I：
10.1016/j.cnsns.2017.05.014
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper, the reliability of a non-linearly damped friction oscillator under combined additive and multiplicative Gaussian white noise excitations is investigated. The stochastic averaging method, which is usually applied to the research of smooth system, has been extended to the study of the reliability of non-smooth friction system. The results indicate that the reliability of friction system can be improved by Coulomb friction and reduced by random excitations. In particular, the effect of the external random excitation on the reliability is larger than the effect of the parametric random excitation. The validity of the analytical results is verified by the numerical results. (C) 2017 Elsevier B.V. All rights reserved.
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页码：1 / 12
页数：12
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