Stabilizing Varying Eccentricity Problem in Hydrodynamic Bearings Using Elegant Control Strategies

Abstract

The implementation of elegant control strategies to stabilize varying eccentricity problem in hydrodynamic bearing has been proposed in this paper. This implementation deals or gives an advantage of good stability of hydrodynamic bearing, even at critical or threshold speeds where an unstable whirl occurs leading to instability assisted greatly by this varying eccentricity factor. Hence in this paper, we take eccentricity as a function of variation and try to stabilize it with a simple and elegant control law. Related stability graphs have been plotted using MATLAB 2013 and models have been designed using SIMULINK.  

Keywords: Modeling, varying eccentricity, force coefficients, stiffness coefficients, control law, whirl orbital response  

Cite this Article Siva Abhishek SJ, Niranjan Kumar Gupta, Abhro Mukherjee, et al. Stabilizing Varying Eccentricity Problem in Hydrodynamic Bearings Using Elegant Control Strategies. Journal of Instrumentation Technology and Innovations. 2016; 6(3): 14–20p.