COLLABORATIVE OPTIMIZATION ON REDUCING STRUCTURAL VIBRATION

PDF(1215 KB)

Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (8) : 113-116,.

论文

COLLABORATIVE OPTIMIZATION ON REDUCING STRUCTURAL VIBRATION

HUANG hai-yan1,WANG De-yu2

Author information +

History +

Abstract

This paper presents a collaborative optimization (CO) strategy on reducing vibration of engineering structure. Different objective functions in various subsystem-level optimization models are used. In system-level optimization model, a new objective function is advised to minimize relative deviation value between the collaborative objective function and single disciplinary objective function. And it eliminates the effect of different dimensions and the order of magnitudes among objectives. The proposed CO architecture enables multi-objectives of the system and subsystem-level’s to be considered at both levels during optimization. A bi-level optimization strategy is advised. The proposed optimization and strategy are demonstrated with two examples. One of them is a reducer optimization problem, and another is a mixed structure which is made up of pillar, beam and plate. The results of examples show that the proposed CO model is feasible and reliable, and can not only effectively decrease the dynamic responses of engineering structure, but also the final structure has better global properties.