Affiliations: State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, Shaanxi, China
Correspondence:
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Corresponding author: Minglong Xu, State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an 710049, Shaanxi, China. Tel./Fax.: +86 29 8266 9093; E-mail:mlxu@mail.xjtu.edu.cn
Abstract: In this paper, the vibration characteristics and active
vibration control of axially moving cantilever structure are investigated.
The free vibration equation of axially moving cantilever beam with different
lengths and tip masses is derived from the Hamilton's principle, and the
natural frequency and modal function are calculated by using complex modal
analysis. Macro Fibre Composite (MFC) patches are utilized as actuator and
sensor in combination with proportional plus derivative (PD) control and
Fuzzy control to establish the closed-loop feedback system, aiming to
control the transverse vibration of the axially moving cantilever structure.
And then, the active vibration control experiment is implemented. The
numerical example illustrates that length and tip mass affect vibration
characteristics significantly. The experimental results suggest that the MFC
actuator and sensor are effective on suppressing the vibration.
