DESIGN AND MODEL EVALUATION OF A HIGHLY SKEWED PROPELLER FOR A CARGO SHIP
This paper presents the design process and model evaluation of a highly-skewed propeller for a modern cargo ship. The design process is discussed in detail including considerations of cavitation, mean and fatigue strength, and propeller-excited vibratory forces. Model experimental results are presented which confirm the validity of the design process and show that the highly-skewed propeller possesses propulsion performance comparable to the propeller now fitted to the ship, has less tendency towards cavitation erosion than this propeller, and possesses adequate strength for head and steady astern operation. Theoretical calculations indicate that the highly-skewed propeller will produce lower vibration excitation forces than the propeller currently fitted to the ship.
- Work funded by Maritime Administration and Moore-McCormack Lines Incorporated. Presented at the meeting of the Chesapeake Section of SNAME.
Naval Ship Research and Development CenterShip Performance Department
Bethesda, MD USA 20034
- Boswell, R J
- Cox, G G
- Publication Date: 1973-3-14
- Features: References;
- Pagination: 63 p.
- TRT Terms: Cavitation (Mechanics); Cavitation erosion; Excitation; Performance; Propellers; Propulsion; Vehicle design
- Old TRIS Terms: Propeller design; Propeller excitation; Propulsive performance; Skewed propellers
- Subject Areas: Design; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00044412
- Record Type: Publication
- Source Agency: Society of Naval Architects and Marine Engineers
- Files: TRIS
- Created Date: May 11 1973 12:00AM