The Multiobjective Optimization of a Prismatic Drive

Details The Multiobjective Optimization of a Prismatic Drive The Multiobjective Optimization of a Prismatic Drive

2007-05-07

arxiv.org/abs/0705.0856v1

ASME Design Engineering Technical Conference (04/09/2007) 1-9

Computer Science

Robotics

Scientific paper

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.

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