Vibration Suppression Device Having Variable Inertia Mass by MR-Fluid
Vibration Suppression Device Having Variable Inertia Mass by MR-Fluid
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DOI：
10.1115/detc2011-47020
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Matsuoka
中科院分区：
文献类型：
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作者：
T. Matsuoka
作者提出了一种新型的减振装置，它利用流体的可变惯性质量作为串联惯性质量。级数惯性质量不仅与活塞缸和旁路管直径之比的平方成正比，而且与流体的密度成正比。测量了在水和汽轮机油作用下的阻力特性。为了验证所提出的理论和研究振动控制的效果，利用该装置对单自由度系统进行了频率响应和地震响应的振动测试。将实验结果与计算结果进行了比较，从实验和理论上证实了减振效果。为了利用磁流变液获得变惯性质量的效应，在几种不同的磁场情况下，测量了该试验装置的阻力特性。由于在旁通管周围安装了一些稀土磁铁，因此旁通管的孔口可以在虚拟环境中进行更改。从实验结果可以看出，惯性力随着磁场的增强而增大。指出在强磁场作用下，旁通管中的团状磁性颗粒作为虚拟小孔，可以得到变惯性质量。从实验上估计了磁通量与变惯性质量之间的关系。版权所有：ASME
Authors have proposed a new type of vibration suppression device that utilizes variable inertia mass by fluid which acts as a series inertia mass. The series inertia mass is proportional to not only square of a ratio between a diameter of a piston cylinder and a by-pass pipe, and also a density of the fluid. The resisting force characteristics in case of water or turbine oil were measured. To confirm the proposed theory and investigate effects of vibration control, vibration tests of frequency response and seismic response of one-degree-of-freedom system with the test device were carried out. The experimental results were compared with the calculated results, and the effects of vibration suppression are confirmed experimentally and theoretically. In this paper, in order to derive the effect of a variable inertia mass by using a magnet-rheological fluid, resisting force characteristics of the test device are measured in several cases of magnetic field. The orifice of the by-pass pipe can be changed in virtual, since some rare-earth magnets are installed around the by-pass pipe. It can be seen from experimental results that the inertia force is increasing as stronger magnetic fields. It is pointed out that the variable inertia mass can be derived since clustered magnetic particles in the by-pass pipe act as a virtual orifice under strong magnetic field. The relation between magnetic flux and variable inertia mass are estimated experimentally.Copyright © 2011 by ASME