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Optimal Linkage Shapes of Planar Mechanisms Using Topology Optimization

[+] Author Affiliations
Nathan Berge, Matthew I. Campbell

Oregon State University, Corvallis, OR

Paper No. IMECE2016-65186, pp. V04AT05A006; 7 pages
doi:10.1115/IMECE2016-65186
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 4A: Dynamics, Vibration, and Control
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5054-1
  • Copyright © 2016 by ASME

abstract

Through the methods outlined in this paper, a procedure involving two cooperating optimization algorithms is developed to create balanced, structurally optimal planar mechanisms. Two systems are analyzed to demonstrate the approach. In the first example, a walking mechanism is analyzed under quasi-static loading, and topology optimization is performed to create stiff, lightweight linkages. In the second example, a quick-return Watt-II six-bar mechanism, counterweights are added to balance the mechanism using a numerical optimization technique. The inertial forces are calculated by simulation, and optimal linkage shapes are generated to support them using topology optimization.

Copyright © 2016 by ASME

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