Dynamics of spatial flexible multibody systems with clearance and lubricated spherical joints

被引：197

作者：

Tian, Qiang ^{[1
]}

Zhang, Yunqing ^{[1
]}

Chen, Liping ^{[1
]}

Flores, Paulo ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Ctr Comp Aided Design, Wuhan 430074, Hubei, Peoples R China

[2] Univ Minho, Dept Mech Engn, P-4800058 Guimaraes, Portugal

来源：

COMPUTERS & STRUCTURES | 2009年 / 87卷 / 13-14期

基金：

中国国家自然科学基金;

关键词：

Clearance; Spherical joints; Lubricated joints; Reynolds' equation; Generalized-alpha method; Absolute nodal coordinate formulation; NODAL COORDINATE FORMULATION; MECHANICAL SYSTEMS; IMPACT ANALYSIS; REVOLUTE JOINTS; ELASTIC FORCES; BEAM ELEMENTS; CONTACT; MODEL; COEFFICIENT; RESTITUTION;

D O I：

10.1016/j.compstruc.2009.03.006

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A computational methodology for analysis of spatial flexible multibody systems, considering the effects of the clearances and lubrication in the system spherical joints, is presented. The dry contact forces are evaluated through a Hertzian-based contact law, which includes a damping term representing the energy dissipation. The frictional forces are evaluated using a modified Coulomb's friction law. In the case of lubricated joints, the resulting lubricant forces are derived from the corresponding Reynolds' equation. An absolute nodal formulation is utilized in flexible body formulation. The generalized-a method is used to solve the resulting equations of motion. The effectiveness of the methodology is demonstrated by two numerical examples. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

引用

页码：913 / 929

页数：17

共 67 条

[1] Frictional impact analysis in open-loop multibody mechanical systems [J].