Volume 12, Issue 2 (2011)                   Modares Mechanical Engineering 2011, 12(2): 134-143 | Back to browse issues page

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Ranjbar M, Marburg S. Vibroacoustical Optimzation of Mechanical Structures Using Geometry Modification Concepte and Genetic Algorithm Method. Modares Mechanical Engineering. 2011; 12 (2) :134-143
URL: http://journals.modares.ac.ir/article-15-7985-en.html
1- Assistant Professor, Department of Mechanical Engineering, Pardis Branch, Islamic Azad University,Pardis, Iran
2- Professor, LRT, Institut für Mechanik, Universität der Bundeswehr München, 85577 Neubiberg, Germany.
Abstract:   (3422 Views)
This paper introduces a new approach for the reduction of sound radiation from the mechanical structures. A combination of genetic algorithm method and geometry modification concept minimizes the root mean square level of structure borne sound for a square plate over a specific frequency range. The structure’s local geometry modification values at the selected surface key-points considered as design variables. The model is under three non-symmetric harmonic excitations. An iterative approach is used to develop new modified model until when a termination criterium is rached. The results show that this approach could produce significant reduction in the value of radiated sound power level of the structure.
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Article Type: Research Article | Subject: Solar Energy & Radiation
Received: 2011/08/8 | Accepted: 2012/04/10 | Published: 2012/06/21

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