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Squeeze film dampers (SFD) are used to control the shaft dynamics in rotating machinery; SFD are essentially thin oil films installed around the ball bearing housing (or even ball bearings outer races) to lower the stiffness and to provide damping for a better control of the lateral vibrations of the shaft. Significant efforts have been dedicated to SFSs, however, these dampers are still subject to open research. This paper will discuss some design aspects as well as modeling aspects of the SFD that operate within the limits of the classical Reynolds theory.

On the design of squeeze film dampers operating within the limits of the Reynolds theory