EXPERIMENTAL OPTIMIZATION OF PROPELLER RUDDER ORIENTATION FOR MINIMUM VIBRATORY LOADING

A model test of a vibration problem, likely to occur on a ship, carried out at the M.I.T. propeller tunnel is described. The loads experienced by a rudder behind a propeller operating in a non uniform wake, were measured using a six-component unsteady state dynamometer. Various longitudinal and transverse positions of the rudder were examined, with the intention of finding its optimum location behind the propeller from the point of view of vibration. Variations in angle of attack were also investigated. The experiment is also used to demonstrate yet another use of the six-component dynamometer originally built to measure unsteady loads on a propeller. Care is taken in presenting the experimental procedure as clearly as possible, outlining the various problems encountered in this study, for the benefit of similar investigation in the future.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Zolotas, A B
• Publication Date: 1974-12-10

Subject/Index Terms

• TRT Terms: Mechanical loads; Propeller shafts; Propellers; Vibration
• Old TRIS Terms: Propeller loading; Propeller position; Propeller shaft vibration; Propeller vibration
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00099974
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Oct 18 1975 12:00AM