Study of a magneto-rheological grease (MRG) damper

Faramarz Gordaninejad; Mark Miller; Xiaoije Wang; Huseyin Sahin; Alan Fuchs

doi:10.1117/12.717709

27 April 2007 Study of a magneto-rheological grease (MRG) damper

Faramarz Gordaninejad, Mark Miller, Xiaoije Wang, Huseyin Sahin, Alan Fuchs

Proceedings Volume 6525, Active and Passive Smart Structures and Integrated Systems 2007; 65250G (2007) https://doi.org/10.1117/12.717709
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

This study focuses on the performance of a magneto-rheological (MR) grease damper. MRGs consist of micron-sized ferrous particles suspended in a grease carrier material. The main advantage of a MRG over a MR fluid is that in a MRG ferrous particles do not settle. Experiments are conducted to measure the output force response of the damper under various sinusoidal motion input conditions. The performance test consists of a sinusoidal frequency sweep maintaining amplitude at a constant displacement. In each test, the input electric current applied to the prototype MRG damper is kept at a constant level of 0, 1.0 and 2.0 Amps. Results demonstrated that a controllable damping force can be achieved which at low frequencies damper is nearly twice of the passive damping force.

Citation Download Citation

Faramarz Gordaninejad, Mark Miller, Xiaoije Wang, Huseyin Sahin, and Alan Fuchs "Study of a magneto-rheological grease (MRG) damper", Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65250G (27 April 2007); https://doi.org/10.1117/12.717709

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