Eerror-sensor location scheme for active vibration isolation under the action of a SDOF actuator
WANG Chunyu1,2， LI Yan1, 2， SHUAI Changgeng1,2，ZHANG Neng1,2
1.Institute of Noise & Vibration, Naval University of Engineering,Wuhan 430033,China;
2.National Key Laboratory on Ship Vibration & Noise,Wuhan 430033,China
Abstract：The inconsistent control effect at different measuring points and the poor overall isolation effect of active and passive vibration isolation devices of electromagnetic airbags were studied.An optimal arrangement method for error sensors based on elastic structure was proposed to improve the overall vibration isolation effect under the action of a single degree of freedom (SDOF) actuator.The transmission characteristics of the vibration isolation system on a rigid foundation with elastic supports were analyzed, and the inconsistency of the vibration control effect at different measuring points was solved by using multiple vibration isolators.Then for the vibration control of the elastic structure foundation, taking the simple supported beam foundation as an example, the connection part of the vibration isolator and the simple supported beam was regarded as a rigid body structure.Using the conclusion of the rigid body foundation vibration isolation presented above, a scheme for the error sensor arrangement of three error sensors corresponding to one vibration isolator was designed.The vibration transmitted to the foundation through the isolator was controlled by controlling the vibration at three error measuring points below the isolator.The results show that the proposed scheme has better vibration isolation effect than the original scheme.
王春雨1,2，李彦1,2，帅长庚1,2，张能1,2. 一种基于单向作动器的主动隔振误差传感器布置方案[J]. 振动与冲击, 2020, 39(22): 254-260.
WANG Chunyu1,2， LI Yan1, 2， SHUAI Changgeng1,2，ZHANG Neng1,2. Eerror-sensor location scheme for active vibration isolation under the action of a SDOF actuator. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(22): 254-260.
[1] 何琳, 徐伟. 舰船隔振装置技术及其进展[J]. 声学学报，2013,38(2):128-136.
He Lin, Xu Wei. Technology and development of ship vibration isolation device[J], Acta acoustics, 2013, 38(2):128-136.
[2] R. A. Smith, G. B. B. Chaplin. The implications of synchronised cancellation for vibration[J]. Proceedings of Inter-Noise1983.1983,403-406
[3] Carl Howard. Active isolation of Machinery vibration from flexible structure [D], University of Adelaide, 1999.
[4] 陈绍青, 王永. 基于磁悬浮隔振器的主动隔振控制实验研究[J]. 东南大学学报(自然科学版), 2010(S1):61-66.
Chen Shaoqing, Wang Yong. Experimental research on active vibration isolation control based on magnetic suspension vibration isolator [J]. Journal of Southeast University (NATURAL SCIENCE EDITION), 2010 (S1): 61-66.
[5] 谢溪凌, 王超新, 陈燕毫, et al. 一种Stewart隔振平台的动力学建模及实验研究[J]. 振动与冲击, 2017(12).
Xie Xiling, Wang Chaoxin, Chen Yanhao, et al. Dynamic modeling and experimental study of a Stewart vibration isolation platform [J]. Vibration and shock, 2017 (12).
[6] 牛军川, 刘玉友.主动隔振系统中功率流的最优化控制策略[J]. 噪声与振动控制, 2000, (5): 2-5.
Niu Junchuan, Liu Yuyou. Optimal control strategy of power flow in active vibration isolation system[J]. Noise and vibration control, 2000, (5): 2-5.
[7] 牛军川, 田国会. 旋转机械主动隔振研究Ⅰ:功率流传递特性[J]. 山东工业大学学报, 2001, (04): 336-341.
Niu Junchuan, Tian Guohui. Study on active vibration isolation of rotating machinery I: power flow transfer characteristics[J]. Journal of Shandong University of Technology, 2001, (04): 336-341.
[8] 熊冶平. 柔性耦合系统的振动功率流及主、被动控制研究[M]. 北京：航空工业出版社, (1999), 79-90.
Xiong Yeping. Study on vibration power flow and active and passive control of flexible coupling system[M]. Beijing: Aviation Industry Press, (1999), 79-90.
[9] 何琳, 李彦, 杨军. 磁悬浮-气囊主被动混合隔振装置理论和实验[J]. 声学学报, 2013, 38(2), 241-249.
He Lin, Li Yan, Yang Jun. Theory and experiment of active passive hybrid vibration isolation device with magnetic suspension and air spring[J]. Acta acoustics, 2013, 38(2), 241-249.
[10] 王春雨. 机械设备线谱振动主动隔振技术研究与应用[D]. 海军工程大学, 2017.
Wang Chunyu. Research and application of active vibration isolation technology for line spectrum vibration of mechanical equipment[D].Naval University of Engineering, 2017.
[11] P. GARDONIO, S. J. E. ACTIVE ISOLATION OF STRUCTURAL VIBRATION ON A MULTIPLE-DEGREE-OF-FREEDOM SYSTEM, PART I_ THE DYNA [J]. Journal of Sound and Vibration, 1997. 207(1): 61-93.
