A NASTRAN CORRELATION STUDY FOR VIBRATIONS OF A CROSS-STIFFENED SHIP'S DECK

To evaluate the effectiveness of NASTRAN for predicting the vibration modes of panels with bending membrane coupling, a cross-stiffened ship deck is analyzed. In correlation with experimental data, one NASTRAN finite element representation gives results slightly more accurate than a previous analytical solution. Computational time is excessively long, owing to the Guyan method of reducing the eigenvalue problem. It is recommended that a more efficient method of matrix reduction be implemented for the lumped mass formulation.

• Authors:
  • Thornton, E A
• Publication Date: 1972-9

Media Info

• Pagination: p. 145-159
• Serial:
  • NASTRAN: User's Experiences

Subject/Index Terms

• TRT Terms: Bridge decks; Decks (Ships); Finite element method; Hulls; Vibration
• Old TRIS Terms: Deck vibration; Hull vibration
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00044669
• Record Type: Publication
• Source Agency: Shock and Vibration Digest
• Report/Paper Numbers: Comp Prog
• Files: TRIS
• Created Date: Jul 31 1973 12:00AM