Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13074
Title: Efficient Mesh-freee Methods for Plate Analysis
Authors: WU WENXIN
Keywords: Mesh-free, LSFD, LRBFDQ, Plate Analysis, Waveguide, Membrane
Issue Date: 22-Feb-2008
Source: WU WENXIN (2008-02-22). Efficient Mesh-freee Methods for Plate Analysis. ScholarBank@NUS Repository.
Abstract: Based on the existing foundation, the development of two mesh-free methods, namely LSFD method and LRBFDQ method, is advanced further in following aspects: (a)high order schemes of LSFD are introduced, (b)the chain rule for discretization of high order derivatives is proposed, (c)the LSFD and LRBFDQ formulations in terms of local (n, t)-coordination system at boundary are developed, (d)a practical approach for searching a proper value of the shape parameter in LRBFDQ is proposed. By making use of these new developments in conjunction with the property of local mesh-free approximation and the enforcement of all boundary conditions, following numerical difficulties have been overcome: (1)modeling of complex domain shapes, (2)accurate approximation of high order derivatives, (3)capturing of steep variations of functions and derivatives, and (4)implementation of multiple boundary conditions. In this thesis, a wide range of plate problems and other engineering problems with various complexities have been solved.
URI: http://scholarbank.nus.edu.sg/handle/10635/13074
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
PhD Thesis-Wu Wenxin.pdf11.84 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

287
checked on Dec 11, 2017

Download(s)

346
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.