A Novel 4 DoFs (3T-1R) Parallel Manipulator with Actuation Redundancy – Workspace Analysis
نویسندگان
چکیده
This paper presents a novel 4 dofs (3T-1R) parallel actuatedly redundant mechanism and its workspace analysis, based on a performance index involving velocity and force capabilities. The robot is capable of performing a half-turn about the z axis. Moreover, having all of its prismatic actuators along one direction; the x motion is independentonly limited by the stroke of the prismatic actuators. The mechanism is characterized by elevated dynamical capabilities having its actuators at base.
منابع مشابه
Interval Analysis of Controllable Workspace for Cable Robots
Workspace analysis is one of the most important issues in the robotic parallel manipulator design. However, the unidirectional constraint imposed by cables causes this analysis more challenging in the cabledriven redundant parallel manipulators. Controllable workspace is one of the general workspace in the cabledriven redundant parallel manipulators due to the dependency on geometry parameter...
متن کامل19 A Novel 4 - DOF Parallel Manipulator H 4
Parallel manipulators have the advantages of high stiffness and low inertia compared to serial mechanisms. Based on the Steward-Gough platform architecture, a lot of 6-DOF mechanical devices have been proposed. The 6-DOF parallel manipulators suffer from a small workspace, complex mechanical design, and difficult motion generation and control due to their complex kinematic analysis. To overcome...
متن کاملAnalyses of Inverse Kinematics, Statics and Workspace of a Novel 3RPS- 3SPR Serial-Parallel Manipulator
A novel 3RPS-3SPR serial-parallel manipulator (S-PM) with 6 degree of freedoms (DOFs) is proposed in this paper. It includes a lower 3RPS parallel manipulator (PM) and an upper 3SPR PM. Its inverse kinematics, active forces and workspace are solved. First, the inverse displacement is solved in close form based on the geometrical and the dimensional constraints of this S-PM. Second, the 9×9 and ...
متن کاملA three translational DoFs parallel cube-manipulator
This paper concerns the presentation and analysis of a type of three translational degrees of freedom (DoFs) parallel cube-manipulator. The parallel manipulators are the topology architectures of the DELTA robot and Tsai’s manipulator, respectively, which have three translational DoFs. In the design, the three actuators are arranged according to the Cartesian coordinate system, which means that...
متن کاملKinematic Analysis of a Novel Three Degree-of-Freedom Planar Parallel Manipulator
In this paper, a novel unsymmetrical five–four bar Planar Parallel Manipulator (PPM) with three Degree-of-Freedoms (DOFs) is proposed, the new manipulator is composed of a double-layer five-bar part with a four-bar part located in between. Targeting for the application of Chinese dish cooking machine, the detailed kinematics analysis for the new PPM is developed. Different from traditional thre...
متن کامل