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Simultaneous Structure and Mechanism Design for an Adaptive Wing Using Topology Optimization

[+] Author Affiliations
James J. Joo

University of Dayton Research Institute

Brian Sanders

Air Force Research Laboratory

Paper No. IMECE2005-79334, pp. 41-47; 7 pages
doi:10.1115/IMECE2005-79334
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Aerospace
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Aerospace Division
  • ISBN: 0-7918-4210-X | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

A synthesis technique using a topology optimization scheme for an adaptive wing structure and mechanism design will be described. This enables the design of energy efficient adaptive structures with controllable deformation characteristics. This is accomplished by using a multi-objective function that minimizes strain energy and maximizes mutual potential energy to design the structure and mechanism simultaneously. To enable simultaneous design for structure and mechanism, the reference structure is composed of three layers; a membrane layer for skin, a frame element layer for structure, and truss element layer for an efficient mechanism. The attachment points between mechanism and structure are also identified with linear springs that are located between mechanism and structure layers. We focus on a simultaneous design of a wing structure and mechanism for large shape change applications. The geometrically large deformation analysis scheme is also added to the synthesis to capture nonlinear effects in design and it will be compared with linear synthesis results.

Copyright © 2005 by ASME

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