TORSIONAL VIBRATION MEASUREMENT ON ROTATING MACHINERY

After defining torsional vibration and citing the circumstances in which it occurs, the author discusses different methods of measuring it. Most mechanical and electrical torsional vibration transducers use a springmass system with very low torsional resistance frequency. For measuring the relative motion between the input shaft and the mass, the same basic principles as are commonly used for linear displacement transducers are employed. Typical transduction methods used are self-generating inductive, linear variable differential transformer, and strain gauge on beam. There are also some transducers which use neither spring masses nor sliprings. A standard machine tool rotary shaft encoder of the photoelectric type can be used to sense shaft position, speed, and torsional vibration, without the addition of any springs, seismic masses, or slip rings. Order from BSRA as No. 49,848.

  • Corporate Authors:

    Trade and Technical Press, Limited

    Crown House
    Morden, Surrey SM4 5EW,   England 
  • Authors:
    • Vesser, W
  • Publication Date: 1978-10

Media Info

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Filing Info

  • Accession Number: 00189254
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Mar 28 1979 12:00AM