Oscillations and control of spherical parallel manipulator

In recent years, there has been a growing number of studies in spherical parallel mechanisms, particularly synthesis, kinematics, and work area singularities. The interaction of degrees of freedom and geometry leads to the nonlinear phenomena, in the dynamics of mechanism. There are few studies into...

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Bibliographic Details
Published in:International journal of advanced robotic systems 2019-05, Vol.16 (3)
Main Authors: Nhan, Nguyen Huu Khanh, Tung, Vo Dinh, Kheylo, Sergey, Victor, Glazunov
Format: Article
Language:English
Subjects:
Acceleration
Algorithms
Degrees of freedom
Kinematics
Manipulators
Mathematical analysis
Nonlinear phenomena
Oscillations
Singularities
Synthesis
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Summary:In recent years, there has been a growing number of studies in spherical parallel mechanisms, particularly synthesis, kinematics, and work area singularities. The interaction of degrees of freedom and geometry leads to the nonlinear phenomena, in the dynamics of mechanism. There are few studies into the dynamic properties of such mechanisms. This article deals with the dynamic property of the parallel spherical manipulators, with three degrees of freedom, and presents determination of acceleration input links, oscillations, and the problem of control. Algorithm of control is based on the concept of minimized coordinates, velocities, and acceleration using inverse dynamic problems. This allows synthesis of this algorithm, which can realize a motion in accordance with prescribed trajectories. Finally, the results of calculations are defined.
ISSN:1729-8806
1729-8814
DOI:10.1177/1729881419846394