Automated optimal stiffener pattern design

Hae Chang Gea, Jianhui Luo

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, an automated topology optimization based approach is proposed to generate the optimal stiffener pattern of 3D shell structure with the objective of maximizing a band of eigenfrequencies. The methodology is based on a fiber-reinforced composite model in which the stiffeners and base structure are modeled as fibers and matrix respectively. Solutions to the optimization problem are obtained by means of an iterative, two-level procedure based on an optimality criterion approach and a method of mathematical programming using analytical sensitivity analysis. Two numerical examples are discussed to demonstrate the application of the proposed approach.

Original languageEnglish (US)
Pages861-869
Number of pages9
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
Country/TerritoryUnited States
CitySt. Louis
Period9/2/989/4/98

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanical Engineering

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