CORRELATIONS OF PROPELLER INDUCED FORCES AND STRUCTURAL VIBRATORY RESPONSE OF THE M.V. ROGER BLOUGH

Propeller induced vibratory forces and structural vibration response of the Great Lakes ore carrier ROGER BLOUGH are calculated and compared with model test data and full-scale data recorded on the ship. The comparative model test data consists of experimental hull surface force estimates before and after the addition of a stern tunnel. The comparative full-scale data is structural vibration data recorded on the ship before and after the addition of the stern tunnel. Because structural changes accompanying the tunnel addition were local changes, the reductions in global vibration level on adding the stern tunnel were a direct reflection of the reduction in the excitation force system. Therefore, the full-scale vibration data provides not only a basis for evaluating the structural response calculations, but also a basis for evaluating both the calculated and experimental hull force estimates.

• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Vorus, W S
  • Stiansen, S G
  • Bertz, R H
• Publication Date: 1977-10

Media Info

• Features: References;
• Pagination: 26 p.

Subject/Index Terms

• TRT Terms: Finite element method; Force; Hulls; Propellers; Ships; Structural analysis; Structural mechanics; Vibration
• Uncontrolled Terms: Structural response
• Old TRIS Terms: Hull propeller interaction; Propeller induced forces; Propeller induced vibration; Propeller vibration; Ss roger blough; Structural vibration
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00173926
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Report/Paper Numbers: No. 193
• Files: TRIS
• Created Date: May 3 1978 12:00AM