A numerical method of the ship structures analysis based on meshless local Petrov-Galerkin method

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• 作者：Jian-ping Chen ; Wen-yong Tang ; Man-ping Xu
• 关键词：ship structures ; deformation and stress ; moving ; least square method ; meshless local MLPG
• 刊名：International Journal of Steel Structures
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：15
• 期：4
• 页码：777-783
• 全文大小：489 KB
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• 作者单位：Jian-ping Chen (1) (2)
  Wen-yong Tang (1)
  Man-ping Xu (2)
  
  1. School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
  2. School of Ship Engineering, Guangzhou Maritime Institute, Guangzhou, 510725, China
  
• 刊物类别：Engineering
• 出版者：Korean Society of Steel Construction, co-published with Springer
• ISSN：2093-6311

文摘

The paper presents a numerical simulation method for ship structures based on meshless local Petrov-Galerkin method. The proposal method is a suitable for adaptive computation method while processing the displacement and stress fields of the ship structures in high-gradient regions. Above all, based on the theory of Mindlin-Reissner plate, the field approximation function of the displacement is obtained by employing Moving-least Square method, and then the governing equation and the stiffness matrix of the structures are established. Numerical demonstrations show the solutions of the presented method are good agreement between FEM-ANSYS and the proposed approach, which verifies the validity of the presented method for the ship structures analysis. Keywords ship structures deformation and stress moving-least square method meshless local MLPG