Abstract
Active vibration control to suppress structural vibration of the flexible structure is investigated based on a new control strategy considering structure-actuator interaction. The experimental system consists of a clamped-free rectangular plate, a controller based on modal control switching, and a magnetostrictive actuator utilized for suppressing the vibrations induced by external excitation. For the flexible structure, its deformation caused by the external actuator will affect the active control effect. Thus interaction between structure and actuator is considered, and the interaction model based on magnetomechanical coupling is incorporated into the control system. Vibration reduction strategy has been performed resorting to the actuator in optimal position to suppress the specified modes using LQR (linear quadratic regulator) based on modal control switching. The experimental results demonstrate the effectiveness of the proposed methodology. Considering structure-actuator interaction (SAI) is a key procedure in controller design especially for flexible structures.
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Jinjun Jiang received the B.E., M.E. degrees in Mechanical Engineering and automatization from Hebei Engineering University in 2006 and 2009. From 2017 to 2018 he has been to New York University as a visiting scholar in Mechanical Engineering and Complex Network Control. Since 2009, he has been an engineer and researcher in China Aerospace Aerodynamics Academy. He is the author of more than 10 articles and holds more than 10 inventions patents. His research mainly focuses on mechatronics Control Technology, Complex Network, Industry Robot Control, Vibration Control Technology robotic structure and control, and human-machine system.
Weijin Gao received the Ph.D. in mechatronics engineering from Beihang University. Since 2016, he has been an engineer and researcher in China Aerospace Aerodynamics Academy. His research interests include dynamic topology optimization and active vibration control. He is the author of ten articles and holds three inventions patents.
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Jiang, J., Gao, W., Wang, L. et al. Active vibration control based on modal controller considering structure-actuator interaction. J Mech Sci Technol 32, 3515–3521 (2018). https://doi.org/10.1007/s12206-018-0702-y
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DOI: https://doi.org/10.1007/s12206-018-0702-y