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Proceedings Paper

The mathematical analysis when using four-bar linkage structure to off-axis segment
Author(s): Bilie Gao; Fan Wu
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Paper Abstract

The four-bar linkage and stressed lap had an outstanding result on grinding and polishing axisymmetrical asphere[1]. Its mechanical structure is succinct and direct, and control is also easy. In "Mathematical analysis about deformation and movement feature, when using stressed lap to off-axis segment" [2] (following using MADMF to represent it in this paper), author put forward two mechanical structures to achieve the axis of lap tilting on both X and Y directions, and overlap with normal line of off-axis segment's contacting point, both structures have a lower universal coupling and 3 pairs of hoisting joints. Based on adopting four-bar linkage to off-axis segment, now we put forward a new mechanical structure, and analyze the movement feature. On the other hand, we analyze the movement feature of four-bar linkage, and remind the attentive matters when using this structure to mirror.

Paper Details

Date Published: 6 May 2009
PDF: 7 pages
Proc. SPIE 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 72810L (6 May 2009); doi: 10.1117/12.831446
Show Author Affiliations
Bilie Gao, Nanjing Institute of Astronomical Optics & Technology (China)
Fan Wu, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 7281:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Wenhan Jiang; Roland Geyl; Myung K. Cho; Fan Wu, Editor(s)

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