A local radial point interpolation method (LRPIM) for free vibration analyses of 2-D solids

被引:473
作者
Liu, GR [1 ]
Gu, YT [1 ]
机构
[1] Natl Univ Singapore, Dept Mech & Prod Engn, Ctr Adv Computat Engn Sci, Singapore 119260, Singapore
关键词
D O I
10.1006/jsvi.2000.3626
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A local radial point interpolation method (LRPIM) is presented to deal with boundary-value problems for free vibration analyses of two-dimensional solids. Local weak forms are developed using weighted residual method locally from the partial differential equation of free vibration. A technique to construct shape functions using radial function basis is proposed. The shape functions so formulated possess delta function property. Essential boundary conditions can be implemented with ease as in the finite-element method. Some important parameters on the performance of LRPIM are also investigated thoroughly. Numerical examples for free vibration analyses of two-dimensional solids to demonstrate the validity and efficiency of the present LRPIM are presented. (C) 2001 Academic Press.
引用
收藏
页码:29 / 46
页数:18
相关论文
共 27 条
[1]  
[Anonymous], 1992, ADV NUMERICAL ANAL
[2]   The meshless local Petrov-Galerkin (MLPG) approach for solving problems in elasto-statics [J].
Atluri, SN ;
Zhu, TL .
COMPUTATIONAL MECHANICS, 2000, 25 (2-3) :169-179
[3]   A critical assessment of the truly Meshless Local Petrov-Galerkin (MLPG), and Local Boundary Integral Equation (LBIE) methods [J].
Atluri, SN ;
Kim, HG ;
Cho, JY .
COMPUTATIONAL MECHANICS, 1999, 24 (05) :348-372
[4]  
Belytschko T, 1995, COMPUT MECH, V17, P186
[5]   ELEMENT-FREE GALERKIN METHODS [J].
BELYTSCHKO, T ;
LU, YY ;
GU, L .
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1994, 37 (02) :229-256
[6]  
Brebbia CA., 1984, BOUNDARY ELEMENT TEC, DOI DOI 10.1007/978-3-642-48860-3
[7]  
Chati MK, 2000, INT J NUMER METH ENG, V47, P1523, DOI 10.1002/(SICI)1097-0207(20000330)47:9<1523::AID-NME836>3.3.CO
[8]  
2-K
[9]   Solving partial differential equations by collocation using radial basis functions [J].
Franke, C ;
Schaback, R .
APPLIED MATHEMATICS AND COMPUTATION, 1998, 93 (01) :73-82
[10]   A local point interpolation method for static and dynamic analysis of thin beams [J].
Gu, YT ;
Liu, GR .
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2001, 190 (42) :5515-5528