# Development of a Five-Bar Parallel Robot With Large Workspace

@inproceedings{Campos2010DevelopmentOA, title={Development of a Five-Bar Parallel Robot With Large Workspace}, author={Lucas Campos and Francis Bourbonnais and Ilian A. Bonev and Pascal Bigras}, year={2010} }

Five-bar planar parallel robots for pick and place operations are always designed so that their singularity loci are significantly reduced. In these robots, the length of the proximal links is different from the length of the distal links. As a consequence, the workspace of the robot is significantly limited, since there are holes in it. In contrast, we propose a design in which all four links have equal lengths. Since such a design leads to more parallel singularities, a strategy for avoidingâ€¦Â Expand

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#### References

SHOWING 1-10 OF 11 REFERENCES

Towards development of a 2-DOF planar oparallel robot with optimal workspace use

- Mathematics, Computer Science
- 2007 IEEE International Conference on Systems, Man and Cybernetics
- 2007

This paper is the first to apply control methods for crossing Type 2 singularities only to a 2-DOF planar parallel robot with revolute joints only, in the context of practical implementation. Expand

Connecting Assembly Modes for Workspace Enlargement

- Mathematics
- 2002

This paper introduces an approach for increasing the useable workspace by realizing a continuous motion between different assembly modes. The workspace envelope is defined as the set of all elementsâ€¦ Expand

Singularity loci of planar parallel manipulators with revolute joints

- Computer Science
- 2001

This paper addresses the problem of determining the singularity loci of 3-DOF planar parallel manipulators with revolute joints for a constant orientation of the mobile platform and proves that the case when the base joints are actuated is proved to lead to singularities represented by curves of degree 42. Expand

The Synthesis of Three-Degree-of-Freedom Planar Parallel Mechanisms with Revolute Joints (3-áąžRR) for an Optimal Singularity-Free Workspace

- Computer Science
- 2004

In this paper, a method is presented for the synthesis of 3- R RR planar parallel mechanisms using a genetic algorithm while considering three different design criteria: the optimized workspace to approach a prescribed workspace, the maximization of the mechanism's dexterity, and the avoidance of singularities inside the mechanism workspace. Expand

Workspace generation and planning singularity-free path for parallel manipulators

- Mathematics
- 2005

Abstract This paper presents a numerical technique for path planning inside the reachable workspace of parallel manipulators avoiding singularity. A generic numerical algorithm for generating theâ€¦ Expand

Experiments with a parallel robot with singularity-perturbed design

- Computer Science
- 2000 26th Annual Conference of the IEEE Industrial Electronics Society. IECON 2000. 2000 IEEE International Conference on Industrial Electronics, Control and Instrumentation. 21st Century Technologies
- 2000

An experimental system comprising a parallel-link manipulator based on a newly proposed singularity-perturbed design of the planar five-bar linkage for end-point path tracking control along a path passing through both an undermobility and an overmobility type singularity is described. Expand

Regions of Feasible Point-to-Point Trajectories in the Cartesian Workspace of Fully-Parallel Manipulators

- Mathematics, Computer Science
- ArXiv
- 2007

The goal of this paper is to define the n-connected regions in the Cartesian workspace of fully-parallel manipulators, i.e. the maximal regions where it is possible to execute pointto-point motions.â€¦ Expand

The Synthesis of Three-Degree-of-Freedom Planar Parallel Mechanisms with Revolute Joints (3-RRR) for an Optimal Singularity-Free Workspace

- Computer Science
- J. Field Robotics
- 2004

In this paper, a method is presented for the synthesis of 3-R RR planar parallel mechanisms. The method uses a genetic algorithm while considering three different design criteria: the optimization ofâ€¦ Expand

Variational approach for singularity-free path-planning of parallel manipulators

- Mathematics
- 2003

This paper addresses the problem of singularity-free path-planning for parallel manipulators. Unlike in serial manipulators, where there are only boundary singularities, parallel manipulators alsoâ€¦ Expand

A parallel x-y manipulator with actuation redundancy for high-speed and active-stiffness applications

- Engineering, Computer Science
- Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146)
- 1998

A novel control scheme that guarantees a lower bound of the end-effector stiffness (LBSC) is presented and is compared with a traditional control scheme for high-speed applications using the minimal 2-norm of actuator torques. Expand