MODAL BALANCING OF FLEXIBLE ROTORS WITHOUT TEST RUNS: AN EXPERIMENTAL INVESTIGATION

In all methods of balancing flexible rotors currently in use <modal balancing and influence coefficient techniques> test masses and test runs are required for the calculation of correction masses. In the modal balancing procedure suggested by Gasch and Drechsler a simple identification method is used to find the generalised unbalances without test runs. In this paper the Gasch and Drechsler method is reported and extended to multi-bearing rotors with initial shaft bow. Systematic experiments done on two test rotors are described. The results show that flexible shafts mounted in ball bearings can be balanced with very good results. Even rotors in fluid film bearings, exceeding the scope of modal theory, were balanced with good results.

  • Supplemental Notes:
    • Journal of Sound & Vibration, 90 <1983>, p.157 <No.2> (16 pp., 13 ref., 2 tab., 3 graphs, 3 diag., 1 phot.)
  • Authors:
    • Gnielka, P
  • Publication Date: 1983

Language

  • English

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685523
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM