THE INFLUENCE OF PROPELLER MEAN LOADS ON PROPULSION SHAFT ALIGNMENT
Shafting alignment in the vertical and horizontal planes is known to be affected by the steady forces and moments generated by the propeller when it rotates. A review of the scant literature on this problem is presented. The origin of the propeller loads is than discussed and it is shown how they can be predictd on the basis of unsteady lifting surface theory. Calculations and some model measurements of steady lateral loads for eight shaft systems are then presented. The effect of each of the six load components on shaft alignment is discussed in some detail. Results are presented from a study based on mathematical optimisation techniques in which propeller loads were included systematically in the shaft alignment selection phase. Recommendations are given for needed research that should aid in avoiding alignment-related failures.
- Presented at "Propellers '78" Symposium, Virginia Beach, Virginia, 24/25 May 1978.
Society of Naval Architects and Marine Engineers601 Pavonia Avenue
Jersey City, NJ USA 07306-2907
- Vassilopoulos, L
- Publication Date: 1978-5
- Features: References;
- Pagination: 24 p.
- TRT Terms: Aerodynamic lift; Alignment; Force; Mechanical loads; Propeller shafts; Propellers; Shafts (Machinery)
- Old TRIS Terms: Lifting surface theory; Propeller forces; Propeller loading; Propeller shaft alignment; Shaft alignment
- Subject Areas: Marine Transportation; Vehicles and Equipment;
- Accession Number: 00301348
- Record Type: Publication
- Source Agency: British Ship Research Association
- Report/Paper Numbers: Paper No. 17 Conf Paper
- Files: TRIS
- Created Date: Nov 27 1979 12:00AM