Vibration Control of Rotor by Squeeze Film Damper with Magnetorheological Fluid

Abstract

Using magnetorheological (MR) fluid in place of lubricating oil in a traditional squeeze film damper (SFD) can build a variable-damping SFD controlled by an magnetic field, and can be used to control the vibration of rotor systems. The structure of an MR fluid SFD is introduced. The Reynolds equation of the MR fluid squeeze film is derived and solved based on the Bingham model, and the formulas for flowing velocity, pressure distribution, film force, and the magnetic pull force of the damper are presented. The mechanical properties of the squeeze film and the unbalance response characteristics of the MR fluid damper-rigid rotor system are analyzed theoretically.

Keywords

magnetorheological (MR) fluids squeeze film damper rotor vibration control

Get full access to this article

View all access options for this article.

References

Duggan, J.A. 1995. “Center Bearing Assembly Including Support Member Containing Rheological Fluid,” US Patent 5452957.

Morishita, S. and Mitsui, Y. 1992. “Controllable Squeeze Film Damper (An Application of Electro-rheological Fluid),” Transactions of ASME , Journal of Vibration and Acoustics, 114(2): 354–357 .

Tichy, J.A. 1993. “Behavior of a Squeeze Film Damper with an Electrorheological Fluid,” STLE Tribology Transactions, 36(1): 127–133 .

Wang, J. , Meng, G. and Hahn, E. 2003. “Experimental Study on Vibration Properties and Control of Squeeze Mode MR Fluid Damper-flexible Rotor System,” In: Proceedings of the 2003 ASME Design Engineering Technical Conference & Computers and Information in Engineering Conference, Sep. 2–6, 2003, Chicago, Illinois, USA, Vol. 5B, pp. 955–959 .

Yao, G. , Fah, Y.F. , Chen, G. et al. 2000. “Electro-rheological Multilayer Squeeze Film Damper and its Application to Vibration Control of Rotor System,” Transactions of ASME , Journal of Vibration and Acoustics, 122(1): 7–11 .