Generally, the robot manipulators are classified into serial type open loop chains and parallel type closed loop chains. Since decades, robot manipulators were designed and operated using the open loop serial chains. In general, Robots used in industries are all general purpose manipulators, consisting of multiple rigid links and are connected in series by means of joints such as revolute, pris...

Jaydev Desai, Chau-Chang Wang, Milo s Zefran and Vijay Kumar General Robotics and Active Sensory Perception (GRASP) Laboratory, University of Pennsylvania 3401 Walnut Street, Room 301C, Philadelphia, PA 19104-6228 Abstract We address the motion planning for \ xtureless" material-handling with multiple manipulators on nonholonomic carts. The mobile manipulators possess the ability to manipulate ...

Mechanism innovation design is an important topic in the field of robot. Many kinds of limbs with specific degrees of freedom (DOFs) are proposed, in which a new joint, P-joint is introduced. In order to obtain new mechanisms of parallel manipulators (PMs), a principle for mechanism design of PMs is adopted, which is based on the special Plücker coordinates for describing a limb. By the princip...

The subject of this paper is about the conceptual design of parallel Schoenflies motion generators based on the wrench graph. By using screw theory and Grassmann geometry, some conditions on both the constraint and the actuation wrench systems are generated for the assembly of limbs of parallel Schoenflies motion generators, i.e., 3T1R parallel manipulators. Those conditions are somehow related...