The squeeze Film Damper over four decades of investigations. Part I: Characteristics and operating features

The present review aims to summarize the main research findings, in the last four decades, on the Squeeze Film Damper (SFD) and its application. In this first part, a survey of the construction characteristics and operating features of the SFD, as a separate component, is reported, as inferred from the technical literature consulted, through a number of theoretical approaches and experimental results. Part II of the paper will review research work on the dynamic behavior of rotors on supports equipped with SFDs.