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《Journal of Shanghai Jiaotong University》 2008-11
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Evolutionary Structural Frequency Optimization Using Second Order Sensitivity

SONG Jie~1,GUO Feng-lin~1,GU Tao~2(1.School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China;2.Reliability Center,Shanghai Institute of Satellite Engineering,Shanghai 200240,China)  
The balance between computational efficiency and accuracy is hard to reach when standard evolutionary structural optimization(ESO) method is used for frequency optimization.This paper proposed the concept of second order sensitivity as well as the equation for its value.Then it was used in a new algorithm for frequency optimization,which is extended from the standard ESO procedure.Finally,a numerical example was given to demonstrate its performance.The results show that the algorithm is very suitable for structural frequency optimization,especially for the first stage of the two-stage optimization process,and that it can keep balance,at some level,between efficiency and accuracy.
【CateGory Index】: TB114.1
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Chinese Journal Full-text Database 1 Hits
1 HU Rui-jiao(College of Mechanical Engineering,Chongqing University,Chongqing 400030,China);Evolutionary structural frequency optimization based on the change rate of sensitivity[J];Machinery;2011-07
Chinese Journal Full-text Database 2 Hits
1 Lin Jia-hao(Research Institute or Engineering Mechanics, Dalian Institute of Technology);REVIEW ON THE DEVELOPMENT IN STRUCTURAL DYNAMIC OPTIMUM DESIGN[J];Advances In Mechanics;1983-04
2 Yang Zhenxing Rong Jianhua Fu Jianlin(School of Automobile and Mechanical Engineering,Changsha University of Science and Technology,Chansha 410076);FREQUENCY TOPOLOGY OPTIMAL DESIGN OF THREE-DIMENSIONAL STRUCTURES[J];Journal of Vibration and Shock;2006-03
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