DAMAGE TO HULL STRUCTURES AND ITS PREVENTION

The causes of marine accidents and general damage to ship hull structures are reviewed with reference to recently assembled statistical data. The general trend of ship damage is assessed through consideration of the frequency of damage sustained by different types of ship. General damage causes are listed as (1) Excessive stress generated in ship hull structures owing to abnormal weather and loading conditions. 2. Excessive stress, specifically repeated stress, imposed on ship hull discontinuous members as a result of vibration and cargo shifting. 3. Generation of excessive stress due to construction work defects. 4. Weakening of ship structural members in special corrosion conditions. 5. Poor quality of materials. In terms of prevention of ship hull damage, the Author proposes application of a ship hull damage information system, one example of which--the NK ship hull damage system--is illustrated as a block diagram with feedback loops. Also briefly discussed are recommended improvements in ship hull structural design work, improvements in construction work quality control and inspection methods, aspects of the repair and strengthening of ships in service, and anti-corrosion measures. Future prospects for damage prevention and the outlook for maintenance-free ships are noted. Order from: BSRA as No. 46,871.

• Corporate Authors:

  Papers of Ship Research Institute

  38-1,6-chome, Shinkawa, Mitaka-shi
  Tokyo,   Japan 

  Papers of the Ship Research Institute

  38-1, 6-chome, Shinkawa, Mitaka-shi
  Tokyo,   Japan 
• Authors:
  • Kaku, S
• Publication Date: 1977

Language

• Japanese

Media Info

• Pagination: 7 p.
• Serial:
  • Sempaku Gijutsu Kenkyujo
  • Volume: 50
  • Issue Number: 4
  • Publisher: Papers of the Ship Research Institute

Subject/Index Terms

• TRT Terms: Corrosion; Crash causes; Deformation curve; Hulls; Information systems; Instrumentation; Loss and damage; Slamming; Stresses; Vehicle maintenance; Vibration
• Uncontrolled Terms: Damage assessment; Ship hulls
• Old TRIS Terms: Heavy weather damage prevention; Hull corrosion; Hull damage prevention; Hull instrumentation; Hull maintenance; Hull stress; Hull vibration
• Subject Areas: Design; Maintenance and Preservation; Marine Transportation; Safety and Human Factors;

Filing Info

• Accession Number: 00170145
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: No. 3 and 4
• Files: TRIS
• Created Date: Mar 7 1978 12:00AM