Development of a novel meshless Local Kriging (LoKriging) method for structural dynamic analysis

Li, Hua and Wang, Q. X. ORCID: https://orcid.org/0000-0003-0626-1538 and Lam, K. Y. (2004) Development of a novel meshless Local Kriging (LoKriging) method for structural dynamic analysis. Computer Methods in Applied Mechanics and Engineering, 193 (23-26). pp. 2599-2619. ISSN 0045-7825


Abstract

This paper presents a novel meshless approach to study the dynamic responses of structures. It is called Local Kriging (LoKriging) method, where the Kriging interpolation is employed to construct the field approximation function and meshless shape functions, and the local weak form of partial differential governing equations is derived by the weighted residual technique. Since the shape functions constructed by this interpolation possess the delta function property even for a set of randomly distributed points, the essential boundary condition can be easily imposed. In implementation of local weak form, the spline function with high continuity is used as the weight function. No mesh is required either for integration of the local weak form, or for construction of the shape functions. Thus the present LoKriging method is a truly meshless method. Several numerical examinations for the free/forced vibrational analysis of structures and the dynamic performance of microelectromechanical systems (MEMS) device are carried out to demonstrate the accuracy and efficiency of the LoKriging method. The numerical results show that the presently developed method is quite easy to implement, very accurate and highly efficient for the problems considered.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 05 May 2022 23:49
Last Modified: 05 May 2022 23:49
Uncontrolled Keywords: Dynamic response; Free/forced vibration; Kriging interpolation; MEMS; Meshless method
Fields of Research (2020): 49 MATHEMATICAL SCIENCES > 4903 Numerical and computational mathematics > 490302 Numerical analysis
40 ENGINEERING > 4017 Mechanical engineering > 401706 Numerical modelling and mechanical characterisation
Identification Number or DOI: https://doi.org/10.1016/j.cma.2004.01.010
URI: http://eprints.usq.edu.au/id/eprint/47462

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