THE FINITE ELEMENT MODELLING FOR DIFFERENT ANALYSIS DEMANDS - MODELLING WITH BEAM, SHELL AND SOLID ELEMENTS

The structural analysis of large scale structures such as a ship is usually carried out in several different stages, using different scales, and using different types of finite elements. In this paper, a method to generate finite element models for different analyses is considered. It is necessary to define the model so that it can exclude some parts of the structure which is not important in the analysis. Also, the model geometry needs to change dimension depending on the analysis required, such as beam, shell, and solid. "Part name" , which indicates whether the parts with that name are extracted in certain analyses, and "part type", which indicates the type of finite elements used to model the parts, are defined. Also, parentage relations between parts are defined. The techniques to transform geometry of the parts that are defined as shells into beams or into solids are developed. Finally, the interaction analysis technique between beams, shells and solids are developed to generate parts that are used in mesh generation. Using these techniques, the system is developed to generate a finite element model for different structural analyses levels. Examples of generated finite element models of a tanker structure in several analysis stages are shown.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 178, Dec 1995, p 349 [7 p, 5 ref, 18 fig]
  • Authors:
    • Ohtsubo, H
    • Suzuki, K
    • Tamura, H
  • Publication Date: 1995

Language

  • Japanese

Subject/Index Terms

Filing Info

  • Accession Number: 00728057
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM