Predicting critical speeds in various rotordynamics problems

Journal Article (Journal Article)

Rotating shafts often experience undesirable large-amplitude whirling oscillations associated with resonance at critical speeds. This paper further develops a nondestructive technique in which measured information about the growing nature of the response is used to predict an incipient critical speed. A number of models of varying degrees of sophistication are developed and tested using the new approach, but the main advantage of the method is that it is model-free and thus possesses considerable practical utility. In addition, further experimental results are presented for the case of two disks mounted on a shaft, and the technique is successfully demonstrated in predicting a critical speed associated with a higher mode.

Full Text

Duke Authors

Cited Authors

  • Plaut, RH; Virgin, LN; Knight, JD

Published Date

  • November 1, 2017

Published In

Volume / Issue

  • 231 / 21

Start / End Page

  • 3913 - 3922

Electronic International Standard Serial Number (EISSN)

  • 2041-2983

International Standard Serial Number (ISSN)

  • 0954-4062

Digital Object Identifier (DOI)

  • 10.1177/0954406216659680

Citation Source

  • Scopus