VIBRATIONS OF IMPERFECT SHIP PLATING

This paper deals with vibration analysis of plates in marine structures. It is the main purpose of the paper to demonstrate that in order to obtain reliable frequency predictions it is necessary to include in the vibration analysis the effects of the unavoidable imperfections caused by welding or lateral fluid pressure. Furthermore, practical procedures for including these effects are presented. Simple algebraic expressions are derived for determination of small amplitude natural frequencies of vibration of initially imperfect rectangular plates subjected to uniaxial in-plane loads. The theoretical results show close agreement with experimental results available in the literature. For vibration analyses of plates submerged in a liquid the importance of taking into account deflections and membrane stresses caused by the hydrostatic pressure is demonstrated.

• Supplemental Notes:
  • Marine Structures, v 4 n 6, 1991, p 571 [23 p, 19 ref, 1 tab, 8 fig]
• Authors:
  • Wedel-Heinen, J
  • Pedersen, P T
• Publication Date: 1991

Language

• English

Subject/Index Terms

• TRT Terms: Defects; Ships; Structural plates; Vibration
• Uncontrolled Terms: Plates
• Old TRIS Terms: Ship structures
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00701992
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM