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This article discusses the initial stages of research that is investigating the behaviour of piston rings used as seals in squeeze film dampers – devices that cap rotor oscillations and reduce dynamic forces in jet engines. It covers an essential system analysis of seal contact surfaces and provides an evaluation of the dynamic parameters describing the system and their effect, leading to hypotheses that aim to describe the piston ring rotation phenomenon, as observed using a test rig, and the sealing effect. It also offers an overview of the results as part of the experimental validation.
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Jäger et al. (2012) studied this question.
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