Coast-Downs and Run-Ups: Understanding Vibration Responses: Copyright Material IEEE, Paper No. PCIC-2018-33

摘要

Many end users of rotating machinery equipment rely on coast-down and run-up vibration monitoring tests to analyze the vibration characteristics of a machine. However, if the user does not have a full understanding of these tests, the results can be misunderstood. This paper discusses, in depth, what these tests indicate and more importantly, what they do not indicate. It shows how a fundamental understanding of rotordynamics (natural frequencies and forced response vibration) is needed to make practical evaluations of rotating machine design and field performance.