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

• TRT Terms: Propellers; Rudders; Vibration
• Old TRIS Terms: Cavitating propellers; Propeller position; Propeller rudder interaction; Propeller vibration
• Subject Areas: Marine Transportation; Vehicles and Equipment;

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