Bearings, Stability, and Vibration Guidance
Over the years, compressor manufacturers have furnished different types of hydrodynamic bearings, ranging from plain sleeve bearings and pressure dam sleeve bearings to very precisely machined tilting shoe (tilting pad) bearings. Compressor shaft systems are supported by these bearings and some of these bearing styles incorporate fixed geometries (Fig. 5.1). Many incorporate grooves or dams so as to achieve the desired support stiffness or damping characteristics. An analogy comes to mind with tuned shock absorbers in automobiles. These provide damping to vehicle motions that cannot be suppressed ...

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