The long standing problem of whirling due to first order (unbalance) and propeller blade order excitations is discussed. The source of the blade-order harmonic components and the close correlation with alignments and the resulting bearing loadings are traced. The possible damages caused by the phenomenon are illustrated by examples. The problems associated with frequency calculations are outlined and a computer program is described.

  • Availability:
  • Corporate Authors:

    Institute of Marine Engineers

    Memorial Building, 76 Mark Lane
    London EC3R 7JN,   England 
  • Authors:
    • Toms, A E
    • Martyn, D K
  • Publication Date: 1972

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00035224
  • Record Type: Publication
  • Source Agency: United States Merchant Marine Academy
  • Files: TRIS
  • Created Date: Oct 27 1972 12:00AM