A displacement-based optimization for truss structures subjected to static and dynamic constraints

Samy Missoum, Zafer Gürdal, Pascal Hernandez, Jean Guillot

Research output: Contribution to conferencePaper

Abstract

The use of displacements as design variables for truss structure optimization is considered as an alternative to the conventional, nested FE analysis based design approach. A two level optimization has been developed; in an inner level, cross sectional areas of truss members are designed for a given displacement field, and in an outer level, optimal displacements are searched trough the use of sequential linear programming. The efficiency and the speed of the method are shown by two test examples for some weight minimization. The evolution of the areas and of the weight is studied. Beside the efficiency of the method, one of the main conclusion is that the weight is always continuous trough the design history although areas might exhibits large discontinuities.

Original languageEnglish (US)
Pages681-690
Number of pages10
DOIs
StatePublished - 1998
Event7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998 - St. Louis, United States
Duration: Sep 2 1998Sep 4 1998

Other

Other7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998
CountryUnited States
CitySt. Louis
Period9/2/989/4/98

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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    Missoum, S., Gürdal, Z., Hernandez, P., & Guillot, J. (1998). A displacement-based optimization for truss structures subjected to static and dynamic constraints. 681-690. Paper presented at 7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998, St. Louis, United States. https://doi.org/10.2514/6.1998-4793