The mathematical analysis when using four-bar linkage structure to off-axis segment

Bilie Gao; Fan Wu

doi:10.1117/12.831446

5 May 2009 The mathematical analysis when using four-bar linkage structure to off-axis segment

Bilie Gao, Fan Wu

Proceedings Volume 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 72810L (2009) https://doi.org/10.1117/12.831446
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

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.

Citation Download Citation

Bilie Gao and Fan Wu "The mathematical analysis when using four-bar linkage structure to off-axis segment", Proc. SPIE 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 72810L (5 May 2009); https://doi.org/10.1117/12.831446

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