Contribution to the Optimization of Closed-Loop Multibody Systems : Application to Parallel Manipulators

Collard, Jean-François;Duysinx, Pierre;Fisette, Paul
(2003) 5th World Congress on Structural and Multidisciplinary Optimization — Location: Venice (19.May.2003)

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Authors
  • Collard, Jean-FrançoisUCLouvain
    Author
  • Duysinx, PierreUliège
    Author
  • Fisette, PaulUCLouvain
    Author
Abstract
This paper describes an original and robust method to optimize the design of closed-loop mechanisms, especially parallel manipulators. In other words, these mechanisms include assembling constraints we solved using a Newton-Raphson algorithm which may fail when the Jacobian matrix of the constraints is ill-conditioned. Therefore, the technique we propose takes advantage of that conditioning to penalize properly the objective function. Applications are shown: on the one hand, a simple example about the design of a planar ejector and, on the other hand, more realistic examples about the kinematical properties of parallel robots, in particular Delta-type and HexaSlide-type manipulators.
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Citations

Collard, J.-F., Duysinx, P., & Fisette, P. (2003). Contribution to the Optimization of Closed-Loop Multibody Systems : Application to Parallel Manipulators. 5th World Congress on Structural and Multidisciplinary Optimization, Venice. https://hdl.handle.net/2078.5/226233