THE EFFECT OF SHIP STIFFNESS UPON THE STRUCTURAL RESPONSE OF A CARGO SHIP TO AN IMPULSIVE LOAD

The purpose of the study was to set up a computer program to investigate the dynamic effects resulting from an impulsive loading on a ship and to determine how these effects tend to vary with the stiffness of the hull girder. The hull is treated as a Timoshenko beam and the solution is obtained by finite difference technique. Two codes are written: an explicit one, which is more efficient for short durations, and an explicit one, which is superior for long durations of impulse. Application is made to a dry cargo ship. Limited analysis of her response to a unit impulse indicates that, in general, reduced hull rigidity tends to be beneficial.

• Supplemental Notes:
  • Sponsored by the Naval Sea Systems Command, Washington, D.C. 20362.
• Corporate Authors:

  National Engineering Science Company

  Pasadena, CA  United States 
• Authors:
  • St Denis, M
  • Fersht, S
• Publication Date: 1968-9

Media Info

• Features: References;
• Pagination: 120 p.

Subject/Index Terms

• TRT Terms: Computer programs; Hulls; Impulses (Mechanics); Loads; Structural analysis; Structural mechanics
• Identifier Terms: Ship Structure Committee
• Uncontrolled Terms: Structural response
• Old TRIS Terms: Computer programs (Hull stress); Hull stiffness; Impulsive loading
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00164220
• Record Type: Publication
• Source Agency: Ship Structure Committee
• Report/Paper Numbers: SSC-186 Res & Dev
• Contract Numbers: NObs-94321
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM