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The kinematic effects of simplifications in the analysis of linear translational parallel robots

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Abstract

Universal joints are required to achieve linear motion in the design of linear-translational-parallel-robots (LTPR). A usual practice among researchers is to assume that the angular velocity of a link attached to a universal joint is perpendicular to it. Although this assumption is intuitive, this research proves analytically and experimentally the existence of a component of the angular velocity in the direction of the link. Thus, proving that the angular velocity of a link attached to a U-joint is not perpendicular to it. Then, a new methodology is proposed to compute the exact value of the angular velocity and acceleration of links attached to universal joints, obtaining a reliable tool to analyze LTPR or robots with universal joints.

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Correspondence to Javier Sanjuan.

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I declare that there is no conflict of interest in the publication of this article, and that there is no conflict of interest with any other author or institution for the publication of this article.

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I hereby declare that this manuscript is the result of my independent creation under the reviewers’ comments. Except for the quoted contents, this manuscript does not contain any research achievements that have been published or written by other individuals or groups. I am the only author of this manuscript. The legal responsibility of this statement shall be borne by me.

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Sanjuan, J., Muñoz, E., Padilla, M. et al. The kinematic effects of simplifications in the analysis of linear translational parallel robots. Int. J. Dynam. Control 10, 1424–1441 (2022). https://doi.org/10.1007/s40435-021-00897-y

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  • DOI: https://doi.org/10.1007/s40435-021-00897-y

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