Unified Kinematics of Prismatically Actuated Parallel Delta Robots

Baran, Eray A.; Özen, Özhan; Bilgili, Dogacan; Sabanovic, Asif (2019). Unified Kinematics of Prismatically Actuated Parallel Delta Robots. Robotica, 37(9), pp. 1513-1532. Cambridge University Press 10.1017/S0263574719000092

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This paper presents a unified formulation for the kinematics, singularity and workspace analyses of parallel delta robots with prismatic actuation. Unlike the existing studies, the derivations presented in this paper are made by assuming variable angles and variable link lengths. Thus, the presented scheme can be used for all of the possible linear delta robot configurations including the ones with asymmetric kinematic chains. Referring to a geometry-based derivation, the paper first formulates the position and the velocity kinematics of linear delta robots with non-iterative exact solutions. Then, all of the singular configurations are identified assuming a parametric content for the Jacobian matrix derived in the velocity kinematics section. Furthermore, a benchmark study is carried out to determine the linear delta robot configuration with the maximum cubic workspace among symmetric and semi-symmetric kinematic chains. In order to show the validity of the proposed approach, two sets of experiments are made, respectively, on the horizontal and the Keops type of linear delta robots. The experiment results for the confirmation of the presented kinematic analysis and the simulation results for the determination of the maximum cubic workspace illustrate the efficacy and the flexible applicability of the proposed framework.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Motor Learning and Neurorehabilitation
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation

UniBE Contributor:

Özen, Özhan

Subjects:

600 Technology > 620 Engineering

ISSN:

0263-5747

Publisher:

Cambridge University Press

Language:

English

Submitter:

Angela Amira Botros

Date Deposited:

12 Apr 2019 17:25

Last Modified:

23 Oct 2019 02:20

Publisher DOI:

10.1017/S0263574719000092

BORIS DOI:

10.7892/boris.126968

URI:

https://boris.unibe.ch/id/eprint/126968

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