自感知电涡流阻尼器建模与特性研究

曹青松;周继惠;李健;刘丹

振动与冲击 ›› 2013, Vol. 32 ›› Issue (21) : 136-141.

PDF(1888 KB)
PDF(1888 KB)
振动与冲击 ›› 2013, Vol. 32 ›› Issue (21) : 136-141.
论文

自感知电涡流阻尼器建模与特性研究

  • 曹青松,周继惠,李健,刘丹
作者信息 +

Research on the Modeling and Characteristics of Self-sensing Eddy Current Damper

  • Cao Qingsong1, Zhou Jihui1, Li Jian1, Liu Dan1
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摘要

随着国民经济的快速发展,发生在高速旋转机械中的振动有可能会影响或限制系统的正常工作,给生产、生活造成不可估量的损失,机械振动控制已成为近年来的研究热点之一,在工程实践中,通常又采用外加阻尼的方法抑制机械振动。本文研究一种可用于旋转元件振动抑制的自感知电涡流阻尼器,借助双线圈透射式电涡流检测方法设计自感知阻尼器结构,依据电涡流效应及电磁力产生原理分析其工作原理,应用阻抗分析理论及电磁理论分别建立了阻尼器的感知模型及作动模型,实例仿真分析阻尼器的参数特性,探讨振动位移与阻尼器输入和输出间的变化关系。最后,实验验证了理论建模的正确性及阻尼器的自感知功能。

Abstract

With national economy rapidly development, mechanical vibration happening in high-speed rotating machinery could affect or restrict the normal work of system, and these will cause some loss of production or life. Vibration control of machinery became a hot topic in recent years. Usually, the plus damping method is used to suppress mechanical vibration in engineering practice. A kind of self-sensing eddy current damper which can be used in restraining machinery vibration of rotating components is studied in this paper. Electric eddy current testing method with double-wire transmission type is adopted in designing self-sensing damper structure. The working principle of it is analyzed based on the eddy current effect and electromagnetic theory. Detection model and actuation model of the damper are established using impedance analysis theory and electromagnetic theory. The characteristics of the damper are analyzed by an instance simulation, and the mutual influence between the vibration displacement and the input and output of damper is discussed. Finally, the experimental results show that the theoretic modeling is correct and the damper has self-sensing function.



关键词

自感知电涡流阻尼器 / 数学模型 / 特性研究 / 实验验证

Key words

self-sensing eddy current damper / mathematical model / characteristics research / experimental verification

引用本文

导出引用
曹青松;周继惠;李健;刘丹. 自感知电涡流阻尼器建模与特性研究[J]. 振动与冲击, 2013, 32(21): 136-141
Cao Qingsong;Zhou Jihui;Li Jian;Liu Dan. Research on the Modeling and Characteristics of Self-sensing Eddy Current Damper[J]. Journal of Vibration and Shock, 2013, 32(21): 136-141

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