Design and fabrication of a novel settled and laminated testing instrument for magnetorheological fluid

Xinchun Guan; Jinhai Li; Jinping Ou

doi:10.1117/12.597708

5 May 2005 Design and fabrication of a novel settled and laminated testing instrument for magnetorheological fluid

Xinchun Guan, Jinhai Li, Jinping Ou

Proceedings Volume 5762, Smart Structures and Materials 2005: Industrial and Commercial Applications of Smart Structures Technologies; (2005) https://doi.org/10.1117/12.597708
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

As having ability of changing its apparent viscosity in presence of magnetic field in millisecond, magnetorheological fluids (MRF) exhibit widely potential application in devices or systems for controlling vibration and noise. In addition to shear stress strength, another import performance index of MRF is its stability under long time static state. For most applied conditions, without hard agglomeration is more important than higher shear stress strength. However, up to now, only a few reports pay attention to evaluate method of MRF's settling. This make it is difficult to optimize manufacturing technique of MRF and study its principle. A novel testing instrument, which made based on theory of that varying magnetic particle's volume content of MRF would induce its correspondingly changing of magnetic conductivity, designed and fabricated. And settling state of several MRF were tested by that instrument, factors which influence accuracy of that instrument is also discussed. Research shows that, the novel settled and laminated testing instrument (NSLTI) is potential to be used to evaluate settling stator and monitor settling process of magnetic particles. Moreover, study also shows that strength of magnetic field, position of magnetic field sensor, sensitivity of Tesla meter, type of MRF and testing time may influence accuracy of NSLTI.

Citation Download Citation

Xinchun Guan, Jinhai Li, and Jinping Ou "Design and fabrication of a novel settled and laminated testing instrument for magnetorheological fluid", Proc. SPIE 5762, Smart Structures and Materials 2005: Industrial and Commercial Applications of Smart Structures Technologies, (5 May 2005); https://doi.org/10.1117/12.597708

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