Vibration mitigation for clamped-free beam using time-delayed controller via Macro-fiber composite

Issue title: Proceedings from the 17th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2015)

Guest editors: Fumio Kojima, Futoshi Kobayashi and Hiroyuki Nakamoto

Article type: Research Article

Authors: Xue, Xiaomin^a | Chen, Luqi^a | Wu, Xiaohong^b | Sun, Qing^{a; *}

Affiliations: [a] Department of Civil Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China | [b] State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, Shaanxi, China

Correspondence: [*] Corresponding author: Qing Sun, Department of Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China. E-mail:sunq@mail.xjtu.edu.cn

Abstract: The Macro Fiber Composite (MFC) is the leading low-profile actuator or sensor offering high performance, durability and flexibility in a cost competitive device. As an ideal candidate of active-control devices, its application, however, is restricted by the complicated electromechanical characteristics, and also restricted by the unavoidable time delay lying in the MFC's actuated systems. Given this, this paper attempts to design a GA-based controller for mitigating clamped-free beam actuated by the MFC patches, in which these two factors are both considered. Finally numerical examples and corresponding experimental cases are used to testify the proposed approach is effective in mitigating vibration with different time delays. Also recommended are the implications of the current study on vibration control for other smart structures.

Keywords: MFC, vibration control, GA controller, time delay, clamped-free beam

DOI: 10.3233/JAE-162086

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 52, no. 1-2, pp. 175-182, 2016