PROBLEMS OF SHIP VIBRATION: PRESENT SOLUTIONS AND FURTHER INVESTIGATIONS

The paper represents an introductory study into the problems of ship vibration. It describes the present state-of-the-art in the methods for analyzing vibration and elaborates on the difficulties regarding the determination of the vibration parameters, i.e. stiffness, damping, effective mass and excitation forces. Some suggestions to enable better modelling of the ship structure and a more reliable treatment of the vibration parameters are given. The numerical methods for vibration analysis are discussed and as an improvement the mode superposition method for arbitrary damping is presented. Finally, some recommendations for further investigations into the problems of ship vibration are given and the present efforts of Det Norske Veritas in this field are outlined.

• Supplemental Notes:
  • Presented at the Spring Meeting, Philadelphia, Pa., of SNAME.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Sejanovic, I
  • Skaar, K T
• Publication Date: 1976-6

Media Info

• Features: References;
• Pagination: 18 p.

Subject/Index Terms

• TRT Terms: Hulls; Propellers; Ships; Vibration
• Old TRIS Terms: Hull stiffness; Hull vibration; Propeller induced vibration
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00132732
• Record Type: Publication
• Source Agency: Society of Naval Architects and Marine Engineers
• Report/Paper Numbers: Paper No. 8
• Files: TRIS
• Created Date: May 14 1976 12:00AM