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Proceedings Paper

Finite element analysis on the assembly of circular wedge prism
Author(s): Anhu Li; Jianfeng Sun; Yongjian Zhu; Liren Liu
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Paper Abstract

The paper comprehensively analyzes and evaluates the mechanical property and thermo-structure distortions of the assembly of circular wedge prism in the device by method of finite element analysis. Regarding the prism assembly as a finite element model, the optical-mechanical-thermal integrating analysis is done. In terms of the principle of structure statics, the structure design and intensity of the prism assembly is verified and checked, and the analysis of surface deformation of the prism is correspondingly provided under static loading; then the thermal elasticity distortions of the prism are analyzed and the estimation of optics performance of the circular wedge prism is given. The analysis results show: the maximal distortion of the prism assembly is 10nm magnitude and the maximal stress is 0.403Mpa, which has much tolerance to the admissible stress of material and the precision requirement of structure; By comparing thermal-structure coupling analysis with statics analysis, the influence of heat effect on the prism surface deformations is proved far greater than the influence of static loading, so the strict temperature-controlled measures must be taken when the device is used.

Paper Details

Date Published: 1 September 2006
PDF: 8 pages
Proc. SPIE 6304, Free-Space Laser Communications VI, 63041S (1 September 2006); doi: 10.1117/12.678264
Show Author Affiliations
Anhu Li, Shanghai Institute of Optics and Fine Mechanics (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Yongjian Zhu, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 6304:
Free-Space Laser Communications VI
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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