Multidisciplinary Optimization of Helicopter Gearbox Housing Structural Vibration Based on ARSM

Lin Zhang; Shu Li

doi:10.4028/www.scientific.net/AMR.1030-1032.1215

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1030-1032Multidisciplinary Optimization of Helicopter...

Multidisciplinary Optimization of Helicopter Gearbox Housing Structural Vibration Based on ARSM

Abstract:

A comprehensive numerical method to optimize a helicopter gearbox housing vibration characteristic is presented. Thicknesses of all the shells are considered to be design variables. The variables that have more effect to the responses than others are found by sensitivity analysis through orthogonal experiment, decreasing computational cost and improving the efficiency. An adaptive response surface method is applied to maximize the first-order natural frequency with the constraint of stress and mass to reduce structural vibration and satisfy strength and mass requirements at the same time, which is a multidisciplinary optimization problem. The results show that the maximum nodal displacement frequency response is lessened 58% and the maximum element stress is 29% less than the original housing structure.

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Periodical:

Advanced Materials Research (Volumes 1030-1032)

Pages:

1215-1218

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1030-1032.1215

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Online since:

September 2014

Authors:

Lin Zhang*, Shu Li

Keywords:

Adaptive Response Surface Method, Frequency Response, Orthogonal Experimental Design, Sensitivity, Vibration Reduction

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* - Corresponding Author

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