Vibration and reliability of a rotating beam with random properties under random excitation

被引：54

作者：

Hosseini, S. A. A. ^{[1
]}

Khadem, S. E. ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Mech Engn, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2007年 / 49卷 / 12期

关键词：

vibration; reliability; rotating beam; random properties; random excitation;

D O I：

10.1016/j.ijmecsci.2007.04.008

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, vibration and reliability of a rotating beam with random properties under random excitations are studied. The rotating beam is under a stochastic load modeled as a stationary white noise. The cross-sectional area, elasticity modulus, moment of inertia, shear modulus, damping coefficient, mass density and rotational speed are modeled as random variables. To develop the equations of motion, the finite element method and space state analysis are applied. In order to consider the randomness of properties, a second order perturbation method is used. The effects of rotational speed, setting angle, hub radius, variances of random properties, correlation of random variables and damping matrix forms on the vibration and reliability of rotating beams, are studied completely. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1377 / 1388

页数：12

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