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Stability and dispersion analysis of reproducing kernel collocation method for transient dynamics

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  • 1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University,Shanghai 200240, P. R. China;
    2. Siemens Industry Software (China) Co., Ltd., 14F, Cloud-9 Office Tower, No. 1018, Changning Road, Shanghai 200042, P. R. China

Received date: 2010-06-04

  Revised date: 2011-04-09

  Online published: 2011-06-01

Supported by

Project supported by the Western Transport Technical Project of Ministry of Transport of China (No. 2009318000046)

Abstract

A reproducing kernel collocation method based on strong formulation is introduced for transient dynamics. To study the stability property of this method, an algorithm based on the von Neumann hypothesis is proposed to predict the critical time step. A numerical test is conducted to validate the algorithm. The numerical critical time step and the predicted critical time step are in good agreement. The results are compared with those obtained based on the radial basis collocation method, and they are in good agreement. Several important conclusions for choosing a proper support size of the reproducing kernel shape function are given to improve the stability condition.

Cite this article

LUO Han-Zhong;LIU Wue-Wen;HUANG Xing-Chun . Stability and dispersion analysis of reproducing kernel collocation method for transient dynamics[J]. Applied Mathematics and Mechanics, 2011 , 32(6) : 777 -788 . DOI: 10.1007/s10483-011-1457-6

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