๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

PARAMETRIC STUDY FOR AN EFFICIENT MESHLESS METHOD IN VIBRATION ANALYSIS

โœ Scribed by Y.H. WANG; W.D. LI; L.G. THAM; P.K.K. LEE; Z.Q. YUE

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
539 KB
Volume
255
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Based on the moving least-squares (MLS) approach, an e$cient meshless method is employed to generate the displacement functions for vibration analysis of elastic bodies. The equation of motion is established by following the standard procedure and the boundary conditions are imposed by applying penalty functions. As the displacement functions are expressed in terms of weight functions, the accuracy will depend on the parameters of the weight functions. Therefore, a parametric study is carried out to determine the best values for these parameters. To demonstrate the accuracy, modal analyses of the beams and plates with di!erent boundaries have been carried out. In addition, the responses of these structures under dynamic excitation have been analyzed. The examples include simply supported beams subjected to sudden excitations and simply supported plates subjected to initial displacements.

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