Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7023
Title: Improved harmony search methods to replace variational principle in geotechnical problems
Authors: Cheng, YM 
Li, L
Fang, SS
Keywords: Variational principle
Slope stability analysis
Harmony search algorithm
Minimum factor of safety
Random number
Issue Date: Mar-2011
Publisher: Cambridge University Press
Source: Journal of mechanics, Mar. 2011, v. 27, no. 1, p. 107-119 How to cite?
Journal: Journal of mechanics 
Abstract: Variational principle is an important principle in engineering discipline. This principle is suitable for simple problems where an analytical expression can be determined, but there are many practical problems where the classical variational principle is practically impossible to be applied. In this paper, the authors will try to demonstrate that the variational principle can be replaced by the use of modern artificial intelligence based optimization method (harmony search method) which can be applied to much more complicated problems. Two different improved harmony search algorithms are proposed in this paper. The new algorithms differ from the original algorithm in that: (1) The harmonies are rearranged into several pairs and the better pairs are used to develop several new harmonies; (2) Different probabilities are assigned to different harmonies. The robustness of the proposed methods is demonstrated by using three difficult examples, and the sensitivities of the related optimization parameters are investigated through statistical orthogonal analysis.
URI: http://hdl.handle.net/10397/7023
ISSN: 1727-7191 (print)
1811-8216 (EISSN)
DOI: 10.1017/jmech.2011.12
Rights: Copyright © 2011 The Society of Theoretical and Applied Mechanics, R.O.C.
The following article "Y. M. Cheng, L. Li and S. S. Fang (2011). Improved Harmony Search Methods to Replace Variational Principle in Geotechnical Problems. Journal of Mechanics, v. 27, no.1 , pp 107-119. doi:10.1017/jmech.2011.12." is available at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8244217
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