The Multiobjective Optimization of a Prismatic Drive

Emilie Bouyer (1) , Stéphane Caro (1) , Damien Chablat (1) , Jorge Angeles (2)

1 IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes
2 CIM - Centre for Intelligent Machines

The multiobjective optimization of Slide-o-Cam is reported in this paper. Slide-o-Cam is a cam mechanism with multiple rollers mounted on a common translating follower. This transmission provides pure-rolling motion, thereby reducing the friction of rack-and-pinions and linear drives. A Pareto frontier is obtained by means of multiobjective optimization. This optimization is based on three objective functions: (i) the pressure angle, which is a suitable performance index for the transmission because it determines the amount of force transmitted to the load vs. that transmitted to the machine frame; (ii) the Hertz pressure used to evaluate the stresses produced on the contact surface between cam and roller; and (iii) the size of the mechanism, characterized by the number of cams and their width.

Mots clés: Slide-o-Cam; Orthoglide; Pressure angle; Optimization

Domaines: Robotique [cs.RO]

Emilie Bouyer, Stéphane Caro, Damien Chablat, Jorge Angeles. The Multiobjective Optimization of a Prismatic Drive. ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Sep 2007, Las Vegas, United States. pp.1-9, ⟨10.1115/DETC2007-34795⟩. ⟨hal-00144879⟩