Mechanical Sciences
Mechanical Sciences
Mechanical Sciences
Articles | Volume 13, issue 2
Articles | Volume 13, issue 2
https://doi.org/10.5194/ms-13-635-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ms-13-635-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 2
Research article
 | 
20 Jul 2022
Research article |  | 20 Jul 2022

Stiffness analysis of a 3-DOF parallel mechanism for engineering special machining

Haiqiang Zhang, Jianglong Tang, Changtao Yan, Guohua Cui, Minghui Zhang, and Yan'an Yao

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Short summary
To improve the stiffness performance of the parallel mechanism, this paper proposes a novel 3-DOF redundantly actuated 2RPU-2SPR parallel mechanism. What is more, the stiffness model of the parallel mechanism is deduced and the accuracy of the stiffness model is verified through finite-element analysis. Finally, the simulation experiment results demonstrate that the redundantly actuated parallel mechanism has better stiffness performance compared to a traditional 2RPU-SPR parallel mechanism.
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