CIM Seminars in Robotic Mechanical Systems
Cable Driven Redundant Parallel Manipulator:From Need to Implementation
Prof. Hamid D. Taghirad
Advanced Robotics and Automated Systems , K. N. Toosi University of Technology
Tehran, Iran
September 3, 2010 at 11:30 AM
George Zames Room MC437
Increasing performance demands necessitates design of new types of robots with larger workspace,
being capable to perform at higher accelerations. Parallel manipulators can generally perform better
than serial manipulators in terms of stringent stiffness and acceleration requirements. However, their
limited workspace and the existence of singular regions inside their workspace confines the applications
of parallel manipulators for large workspace requirement. In a cable-driven redundant parallel manipulator
(CDRPM), the linear actuators of parallel manipulators are replaced with electrical powered cable drivers,
which leads immediately to a larger workspace. The idea of using cable driven redundant parallel
manipulators, are not limited to only the applications where very large workspace is required, and this
idea is effectively penetrated in the applications where precise and stiff robot is required to operate in
high accelerations within a relatively larger workspace than that attainable in conventional parallel robots.
In this presentation, one of such application in which a CDRPM is used is introduced, and the challenging
issues in the optimal kinematics structure, dynamics formulation, and control of such structure will be
presented. Finally, the steps toward the implementation of this robot will be further discussed.

