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Joint Surface Stiffness Parameter Identification of Complex Aircraft Structure Using Optimization Method |
PAN Hebin,SONG Botao,WANG Hao |
1. The Sixth Military Representative Office of the CPLA Navy in Shanghai, Shanghai 201109, China;
2. Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China |
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Abstract Joint surface stiffness parameter identification of complex structure of aircraft using optimization method is proposed in this article. The least square of the modal test mode of vibration and calculation mode is used as the objective function. The modal frequency is used as the constraint. The joint surface stiffness is used as the optimized parameter. This method is simple and feasible, and the joint surface stiffness can be identified more accurately with parameter identification. The modal calculation accuracy can be significantly improved and a more accurate model can be provided for the subsequent dynamic modeling and vibration analysis.
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Received: 11 December 2018
Published: 29 April 2019
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