Abstract
In this paper, the dynamic stability problem of a parallel wrist mechanism is studied by means of monodromy matrix method. This manipulator adopts a universal joint as the ball-socket mechanism to support the mobile platform and to transmit the motion/torque between the input shaft and the end-effector. The linearized equations of motion of the mechanical system are established to analyze its stability according to the Floquet theory. The unstable regions are presented graphically in various parametric charts.
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Acknowledgement
The reported work is supported by the Doctoral Start-up Foundation of Liaoning Province (No. 20170520134) and the Fundamental Research Funds for the Central Universities (No. DUT16RC(3)068).
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Wu, G., Caro, S. (2019). Torsional Stability of a U-Joint Based Parallel Wrist Mechanism Featuring Infinite Torsion. In: Arakelian, V., Wenger, P. (eds) ROMANSY 22 – Robot Design, Dynamics and Control. CISM International Centre for Mechanical Sciences, vol 584. Springer, Cham. https://doi.org/10.1007/978-3-319-78963-7_20
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DOI: https://doi.org/10.1007/978-3-319-78963-7_20
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