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Proceedings Paper

Kinematic performance analysis of the active reflector mechanism in FAST
Author(s): Qi-Ming Wang
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Paper Abstract

This paper presents a preliminary study dedicated to a spatial three-degree-of-freedom (3-DoF) parallel mechanism intended to be used as the active reflector surface of a large spherical radio telescope. The forward and inverse kinematic problems of the mechanism are addressed, and solved in analytical form. Since the mechanism has only three degrees of freedom, constraint equations describing the inter-relationship between the six Cartesian coordinates are derived. Furthermore, the Jacobian matrix of the mechanism is obtained. Finally, the dexterity of the mechanism and the parasitic motion are discussed. A simulation result is reported.

Paper Details

Date Published: 29 September 2004
PDF: 10 pages
Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); doi: 10.1117/12.551090
Show Author Affiliations
Qi-Ming Wang, National Astronomical Observatories (China)

Published in SPIE Proceedings Vol. 5495:
Astronomical Structures and Mechanisms Technology
Joseph Antebi; Dietrich Lemke, Editor(s)

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