AN EFFICIENT SURFACE PANEL METHOD FOR THE CALCULATION OF ADDED MASS MATRICES FOR DISCRETISED STRUCTURES

The prediction of the dynamic structural response of submerged marine structures necessarily includes the effect of the fluid on the structure. In the general case, the fluid/structure interaction leads to a complex coupled boundary value problem which is often of infinite extent. If our interest is confined to the low frequency elastic response of the structure, the interaction can often be reduces to frequency independent added mass and damping terms in the structural dynamic equilibrium equations. This paper discusses an efficient surface panel method for the calculation of the fluid mass matrices using only the fluid/structure interface geometry. In conjunction with a general purpose finite element analysis system, the method has proven very effective for the prediction of dynamic structural response.

• Supplemental Notes:
  • "CADMO 88", 2nd. Intl. Conference on Computer Aided Design, Manufacture and Operation in the Marine and Offshore Industries held Southampton 20-22 Sep. 1988, p.713 [15 pp., 11 ref., 3 tab., 6 fig.]
• Authors:
  • Vernon, T A
  • Bara, B
  • Hally, D
• Publication Date: 1988

Language

• English

Subject/Index Terms

• TRT Terms: Offshore structures
• Uncontrolled Terms: Structural reliability
• Old TRIS Terms: Added mass; Response; Surface panel method
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00696110
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM