English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2357816      Online Users : 33
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24358

Title: Computation of dynamic stiffness and flexibility for arbitrarily shaped two-dimensional membranes
Authors: J. T. Chen;I. L. Chung
Contributors: NTOU:Department of Harbor and River Engineering
Keywords: dynamic stiffness and flexibility;an efficient mixed-part dual BEM;overdetermined system
Date: 2002-04
Issue Date: 2011-10-20T08:11:42Z
Publisher: Structural Engineering and Mechanics
Abstract: abstract:In this paper, dynamic stiffness and flexibility for circular membranes are analytically derived using an efficient mixed-part dual boundary element method (BEM). We employ three approaches, the complex-valued BEM, the real-part and imaginary-part BEM, to determine the dynamic stiffness and flexibility. In the analytical formulation, the continuous system for a circular membrane is transformed into a discrete system with a circulant matrix. Based on the properties of the circulant, the analytical
solutions for the dynamic stiffness and flexibility are derived. In deriving the stiffness and flexibility, the spurious resonance is cancelled out. Numerical aspects are discussed and emphasized. The problem of numerical instability due to division by zero is avoided by choosing additional constraints from the information of real and imaginary parts in the dual formulation. For the overdetermined system, the least squares method is considered to determine the dynamic stiffness and flexibility. A general purpose
program has been developed to test several examples including circular and square cases.
Relation: 13(4), pp,437-453
URI: http://ntour.ntou.edu.tw/handle/987654321/24358
Appears in Collections:[河海工程學系] 期刊論文

Files in This Item:

There are no files associated with this item.

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback