Optimal Design of Smart Structures

Abstract

The goal of this study was to investigate the benefits of simultaneously designing an active structure's topology, active material treatment, and control law. Both static and dynamic structures were considered. The goal for static structure design was to satisfy given load capability and displacements when activated. The goal of the dynamic structure design was increased stability margin. It was found that simultaneous design increases the performance as compared to a conventionally designed structure. The topology of the structure and the active material treatment work together to create a system that is less sensitive to spillover instability. A library of homogeneous, mixed material finite elements were created to facilitate simultaneous topological optimization of active and conventional material structures. Additionally, a general, parallel processing active structure design tool was created that combines a genetic algorithm optimization code with commercially available finite element (ABAQUS) and control design (MATLAB) codes.

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Document Details

Document Type
Technical Report
Publication Date
Sep 23, 2003
Accession Number
ADA417882

Entities

People

  • Bernhard Bettig
  • Gordon Parker
  • Markus J. Buehler
  • Wei Chen

Organizations

  • Michigan Technological University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Closed Loop Systems
  • Control
  • Control Systems
  • Elastic Properties
  • Engineering
  • Finite Element Analysis
  • Genetic Algorithms
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Modulus Of Elasticity
  • Optimization
  • Parallel Computing
  • Parallel Processing
  • Piezoelectric Materials
  • Topology Optimization

Readers

  • Computational Fluid Dynamics (CFD)
  • Robotics and Automation.

Technology Areas

  • AI & ML
  • AI & ML - Machine Learning Algorithms
  • Biotechnology