Affiliations: [a] State Key Laboratory for Strength and Vibration,
School of Aerospace, Xi'an Jiaotong University, Xi'an, Shaanxi, China | [b] Xi'an Jiesheng Electronic Technology Co., Ltd., New
Industrial Park, Xi'an, Shaanxi, China | Université Laval, Canada | Tohoku University, Japan
Correspondence:
[*]
Corresponding author: J. Luo, State Key Laboratory for Strength
and Vibration, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049,
Shaanxi, China. Tel.: +86 029 8266 0978; Fax: +86 029 8266 4849; E-mail:
luojl.phd@stu.xjtu.edu.cn
Abstract: In this paper, an electrodynamic vibration suppressor is proposed
that can be used to suppress the main component of structural vibrations. This
suppressor includes three main parts: an electrodynamic actuator, a power
amplifier and a vibration controller. The intrinsic characteristics of the
electrodynamic actuator were studied. After proposing a variable-step feedback
harmonic cancellation algorithm, a controller was developed on the basis of
this algorithm. To verify the effects of the suppressor, an experiment was
conducted on a slender cylinder shell. The results show that the vibration was
reduced by approximately 73%.
