SHAPE OPTIMIZATION IF HATCH CORNERS: THEORY, TEST AND APPLICATION

The aim of this paper is to present the theory of shape optimisation of hatch corners, in which sequential linear programming with an adaptive move limit combined with the boundary element method is used for minimising stress concentration. The effectiveness for this is demonstrated by means of the photoelastic test. Comparison of stress concentration factors for the various shapes of hatch corners in large rectangular openings shows that either the optimum arc which is automatically generated by a computer program or the proposed quasi-optimum arc which is expressed in terms of coordinates is better than those recommended by the current rules of ship structural design.

• Supplemental Notes:
  • Intl Shipbuilding Progress, v 40 n 423, Sept 1993, p 203 [12 p, 12 ref, 7 tab, 6 fig]
• Authors:
  • Xu, Chengcheng
  • Yu, M
• Publication Date: 1993

Language

• English

Subject/Index Terms

• TRT Terms: Hatch covers; Stresses; Structural analysis
• Uncontrolled Terms: Stress concentration
• Old TRIS Terms: Hatch stress
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00706348
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM