Active control of dynamic frequency responses for shell structures. (October 2015)

• Record Type: Journal Article
• Authors: Zhang, Xingwu; Chen, Xuefeng; You, Shangqin; He, Zhengjia
• Is Part Of: Journal of vibration and control. Volume 21:Number 14(2015)
• Page Start: 2813
• Page End: 2824
• Publication Date: 2015-10
• Subjects: Active control -- dynamic frequency responses -- experiment -- multi-objective -- open cylindrical shell; Vibration -- Periodicals; Damping (Mechanics) -- Periodicals; 620.3
• DOI: 10.1177/1077546313517588
• Languages: English
• ISSNs: 1077-5463

Abstract

The active control method is a popular way to control mechanical vibration. However, for some industrial needs and military requirements, it does not only need to control vibration, but also has to change the online constant working frequency responses, for example to improve the dynamic performance of mechanical devices and the stealth of military equipment. Because the present active control methods mainly focus on vibration control, the dynamic frequency responses active control method (DFRACM) is constructed to deal with this problem. The constructed DFRACM can not only accomplish vibration control but can also arbitrarily change the dynamic frequency responses of mechanical equipment. Besides, in order to satisfy engineering requirements, the multi-objective DFRACM, which can control the dynamic frequency responses of the controlled object to reach separate specific objectives at different places in one time, is also studied in this paper. The effectiveness of the constructed method is verified through experiments of the open cylindrical shell structure.