|
个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 国家重大专项专家组成员、教育部热防护专业组组长、国际华人计算力学协会理事、中国航空学会理事、中国航空学会强度与设计专业委员会委员、国际边界单元法协会会员、教育部高等学校航空航天类专业教学指导委员会委员
性别：男
毕业院校：Glasgow University
学位：博士
所在单位：力学与航空航天学院
办公地点：海宇楼403A
联系方式：0411-84706332
电子邮箱：xwgao@dlut.edu.cn
Radial integration BEM for vibration analysis of two- and three-dimensional elasticity structures
点击次数：
论文类型：期刊论文
发表时间：2016-03-20
发表刊物：APPLIED MATHEMATICS AND COMPUTATION
收录刊物：SCIE、EI
卷号：277
页面范围：111-126
ISSN号：0096-3003
关键字：Radial integration BEM; Free and forced vibration analyses; Newmark method; Elastodynamic
摘要：In this paper, the radial integration boundary element method (RIBEM) is developed for free and forced vibration analyses of two- (2D) and three-dimensional (3D) isotropic solids and structures. Based on the elasticity theory, boundary-domain integral equations for elastodynamic problems are derived based on elastostatic fundamental solutions. Adopting the elastostatic fundamental solution in deriving the integral equations for elastodynamic problems will create inertial and damped domain integrals as well as the boundary ones. The radial integral method (RIM) is employed to transform the domain integrals into boundary integrals. Thus a boundary-only integral equation can be achieved. It is then discretized into a system of time dependent algebraic equations, which is solved by the standard Newmark time integration scheme. Numerical results for several examples are given to demonstrate the validity and accuracy of the present formulation. (C) 2015 Elsevier Inc. All rights reserved.