COMPUTER TECHNIQUES FOR USE IN SHIP HULL VIBRATION ANALYSIS AND DESIGN
The prediction of propeller excited ship hull vibration and the development of designs to minimize propeller excited hull vibration are complex problems that at the present time are far from fully developed. All analytical procedures require (1) the prediction of the excitation at the propeller and on the hull as a consequence of the pressure field surrounding the propeller, and (2) the prediction of the response of the ship to these excitations. In the past several years, many computer programs have been written to predict the excitation and response of a ship to propeller-induced vibrations. This usually involves applying the propeller forces and pressures computed in a separate hydrodynamic program to a beam or finite element model of the ship's structure. In general the model, if reliable, is quite large and so the program should be capable of handling a large system. This paper presents information on the computer programs commonly used in ship vibration analyses and observations based upon surveys and experience.
- Presented at the Ship Vibration Symposium sponsored by The Ship Structure Committee and The Society of Naval Architects and Marine Engineers, Arlington, Virginia, October 16-17, 1978.
Society of Naval Architects and Marine Engineers601 Pavonia Avenue
Jersey City, NJ United States 07306-2907
- Reed, F E
- Burnside, O H
- Publication Date: 1978
- Pagination: 22 p.
- TRT Terms: Computer programs; Excitation; Finite element method; Force; Hulls; Hydrodynamics; Propellers; Ships; Vibration; Vibration control
- Old TRIS Terms: Computer programs (Hull vibration); Hull propeller interaction; Hull response; Hull vibration; Propeller excitation; Propeller forces; Propeller induced vibration; Propeller vibration
- Subject Areas: Design; Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00183165
- Record Type: Publication
- Source Agency: Society of Naval Architects and Marine Engineers
- Report/Paper Numbers: Proceeding
- Files: TRIS
- Created Date: Oct 31 1978 12:00AM