EXPERIMENTAL OPTIMIZATION OF PROPELLER RUDDER ORIENTATION FOR MINIMUM VIBRATORY LOADING

Propeller induced vibratory forces acting on the rudder of a water tunnel simulation of the SEA CONTROL SHIP are measured as a function of longitudinal and transverse clearance in order to determine an optimum location. The influence of propeller-rubber clearance on steady state propulsion and rudder effectiveness is obtained. It is found that vibratory forces measured at a cavitation number corresponding to full power are three times the corresponding values measured without cavitation. A significant reduction in vibratory force at zero rubber angle appears to be possible by moving the rudder from the present design location. The present transverse propeller-rudder clearance appears to be optimum. (Author)

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Ocean Engineering, 77 Massachusetts Avenue
    Cambridge, MA  United States  02139
  • Authors:
    • Kerwin, J E
    • Zolotas, A B
  • Publication Date: 1975-2

Media Info

  • Pagination: 124 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00130680
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: No. 75-6 Final Rpt.
  • Contract Numbers: N00014-67-A0204-0087
  • Files: TRIS
  • Created Date: Mar 29 1976 12:00AM