Active Vibration Control of Smart Structure Based on Alternate Driving SMA Actuators

Abstract:

Though with its big restoring force and large deformation characteristic, shape memory alloy (SMA) is commonly used in the research of active vibration control for smart structure, the presence of its thermal hysteresis often leads to bad control performance. A vibration control method based on alternate multichannel driving SMA is proposed to improve the SMA based smart structural vibration control performance by reducing the effect of thermal hysteresis of SMA. The technical methods, the design of the experimental structure, the construction of the experimental platform is illustrated, with the principle and operating process of the experiment and experimental results described. By embedding the SMA driving elements into the epoxy substrate and mounted epoxy plate into the framework of the aircraft prototype, experimental analysis and verification is done. The experimental results show that alternate multichannel driving of SMA for vibration suppression of smart structure is feasible, and the performance is improved to a certain extent.

• Periodical: Applied Mechanics and Materials (Volume 39)
• Pages: 61-66
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.39.61
• Online since: November 2010
• Authors: En Yu Jiang, Xiao Jin Zhu, Yong Shao, Zheng Liang Wang
• Keywords: Active Vibration Control, Alternate Multi-Channel Driving, Experimental Verification, SMA Driving Element, Smart Structure

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