Method and device for large rotor bearing force measurement

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

In the paper industry, the dynamic characteristics of flexible rotors has been widely investigated for decades. Rotor vibrations induce noise, decrease the lifespan of bearings, produce additional load to structures, and can directly affect the end product as in a paper production. Therefore, vibration must be avoided and reduced to its minimum.Accelerometers are commonly used to measure the frequencies and the amplitudes of the vibrations. Anyway, accelerometers are not capable of detecting forces like periodic radial bearing forces created by rotor vibrations. Thus, these forces are typically unknown or estimated by simulations. Lack of exact information leads to a situation, in which under-and over-dimensioning can occur, hindering effective material use and lifespan optimization.To tackle this problem a measurement device was designed and built to measure radial bearing forces of large-scale rotors, which produce considerable dynamic forces and have lower natural frequency compared to smaller rotors. In addition to radial bearing force measurement, the device contained horizontal stiffness adjustment, which allows investigation on the effects of a foundation on rotor behavior.With the developed measurement device could be revealed the harmonic components of the measured force, which could be applied to eliminate excitation sources.

Original languageEnglish
Title of host publicationI2MTC 2019 - 2019 IEEE International Instrumentation and Measurement Technology Conference, Proceedings
PublisherIEEE
Number of pages6
ISBN (Electronic)9781538634608
DOIs
Publication statusPublished - 9 Sep 2019
MoE publication typeA4 Article in a conference publication
EventIEEE International Instrumentation and Measurement Technology Conference - Auckland, New Zealand
Duration: 20 May 201923 May 2019
Conference number: 12

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
Volume2019-May
ISSN (Print)1091-5281

Conference

ConferenceIEEE International Instrumentation and Measurement Technology Conference
Abbreviated titleMTC
CountryNew Zealand
CityAuckland
Period20/05/201923/05/2019

Keywords

  • Adjustable stiffness
  • Force measurement
  • Measurement device
  • Radial bearing force
  • Rotor dynamics

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