• A coordinate-free approach to tracing the coupler curves of pin-jointed linkages 

      Rojas Libreros, Nicolás Enrique; Thomas, Federico (ASME PRESS, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In general, high-order coupler curves of plane mechanisms cannot be properly traced by standard predictor-corrector algorithms due to drifting problems and the presence of singularities. Instead of focusing on finding ...
    • A new insight into the coupler curves of the RCCC four-bar linkage 

      Thomas, Federico; Pérez Gracia, Alba (Springer, 2017)
      Text en actes de congrés
      Accés obert
      Based on the condition for four points to lie on the unit sphere, derived using Distance Geometry, a new mathematical formulation for the coupler curves of the RCCC linkage is presented. The relevance of this formulation ...
    • A unified position analysis of the Dixon and the generalized Peaucellier linkages 

      Rojas Libreros, Nicolás Enrique; Dollar, Aaron M.; Thomas, Federico (2015-12-01)
      Article
      Accés obert
      This paper shows how, using elementary Distance Geometry, a closure polynomial of degree 8 for the Dixon linkage can be derived without any trigonometric substitution, variable elimination, or artifice to collapse mirror ...