MATHEMATICAL PROGRAMMING PROCEDURES FOR MIXED DISCRETE-CONTINUOUS DESIGN PROBLEMS

Two mathematical programming procedures for treating nonlinear problems involving mixed variables are presented. One involves a relatively simple concept. First an optimum is located treating all variables as continuous. Adjacent discrete points are then evaluated in order of increasing distance from the all-continuous optimum, each evaluation requiring an optimization of the continuous variables, if any, until a satisfactory design is found. The other method utilizes an optimal discrete search to locate the optimum. These procedures are applied to the minimum weight design of stiffened, cylindrical shells where they prove to be effective.

• Corporate Authors:

  Newark College of Engineering

  323 High Street
  Newark, NJ  United States  07102
• Authors:
  • Papas, M
  • Allentuch, A
• Publication Date: 1973-4

Media Info

• Features: References;
• Pagination: 40 p.

Subject/Index Terms

• TRT Terms: Cylinders (Geometry); Design; Hulls; Shells (Structural forms); Submarines
• Uncontrolled Terms: Cylindrical shells
• Old TRIS Terms: Hull stiffness; Stiffened cylinders
• Subject Areas: Design; Marine Transportation; Materials;

Filing Info

• Accession Number: 00046674
• Record Type: Publication
• Source Agency: Ship Structure Committee
• Report/Paper Numbers: NCE Rpt #NV7
• Contract Numbers: N00014-71A-0124-002
• Files: TRIS
• Created Date: Sep 18 1973 12:00AM