HIGH SPEED SHIP STRUCTURAL DYNAMICS: PRACTICAL APPLICATION TO DESIGN

This paper is an attempt to present a methodology for predicting rationally the magnitude of the severe dynamic loads acting on advanced high speed hulls as a result of wave impacts. Having accomplished this the next step is to use this information as input to, say, NASTRAN finite element structural models to investigate the dynamic response of the overall hull to the transient impact forces as well as the local response of the hull plating to the corresponding high impact pressures. Included are the effects of displacement, speed, heading, operational mode (hullborne or cushionborne as in the case of SES'S and ACV'S) and operational environment (wave height and period). Thus, based on experimental observations adequate statistical distributions such as Rayleigh, Weibull, Generalized Gamma, etc. are used to describe the statistics of the loads and their combination so that rational structural design criteria can be developed.

• Supplemental Notes:
  • Paper presented at the March 17, 1976 Meeting of the Chesapeake Section of SNAME.
• Corporate Authors:

  Payne, Incorporated

  1910 Forest Drive
  Annapolis, MD  United States  21401
• Authors:
  • Giannotti, J G
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: 53 p.

Subject/Index Terms

• TRT Terms: Bending moments; Dynamic loads; Finite element method; Force; High speed craft; Hulls; Ship motion; Structural models; Water waves; Waves
• Uncontrolled Terms: Dynamic response
• Old TRIS Terms: Hull bending moments; Hull wave interaction; Wave forces on structures
• Subject Areas: Bridges and other structures; Design; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00149626
• Record Type: Publication
• Source Agency: Payne, Incorporated
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM