Separation of lateral and torsional shaft vibration via a multiple sensor time interval measurement system

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A common torsional vibration sensing method for rotating equipment is the Time Interval Measurement System (TIMS). The method utilizes the time passage of discrete intervals from an incremental geometric encoder (i.e., gear) on a rotating shaft. Ideal measurement conditions consist of a constant shaft running speed, an encoder with identical segments and no transverse motion of either the shaft centerline or the encoder passage sensor. In practice, these ideal conditions are rarely achieved as the shafts of large rotating equipment can experience lateral vibration due to imbalance and/or misalignment. The lateral shaft vibration can affect the TIMS torsional encoder passage times and hence results in measurement errors. The work in this paper describes and evaluates a multiple encoder passage sensing and data processing algorithm to separate the torsion and lateral vibration. The multi-sensor TIMS method is then applied to an industrial pump to illustrate the separation capabilities of the method.

Original languageEnglish (US)
Title of host publicationInternational Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012
Subtitle of host publicationInternational Conference on Uncertainty in Structure Dynamics
PublisherKatholieke Universiteit Leuven
Pages1373-1385
Number of pages13
ISBN (Print)9781622768257
StatePublished - Jan 1 2012
Event25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012 - Leuven, Belgium
Duration: Sep 17 2012Sep 19 2012

Publication series

NameInternational Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics
Volume2

Other

Other25th International Conference on Noise and Vibration engineering, ISMA2012 in conjunction with the 4th International Conference on Uncertainty in Structural Dynamics, USD 2012
CountryBelgium
CityLeuven
Period9/17/129/19/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Acoustics and Ultrasonics

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  • Cite this

    Trethewey, M. W., & Lebold, M. S. (2012). Separation of lateral and torsional shaft vibration via a multiple sensor time interval measurement system. In International Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics (pp. 1373-1385). (International Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics; Vol. 2). Katholieke Universiteit Leuven.