Mr. Yongxian Wang Profile

Yongxian Wang

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Proceedings Article | 24 August 2009 Paper

Space optics remote sensor focusing components mechanics characteristic analysis based on FEM

Yong-xian Wang, Bing Wang, Jian-yue Ren

Proceedings Volume 7381, 738102 (2009) https://doi.org/10.1117/12.833913

KEYWORDS: Mechanics, Sensors, Remote sensing, Astronomical imaging, Finite element methods, Optics manufacturing, Transient nonlinear optics, Space sensors, Space telescopes, Space mirrors

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Space optical remote sensor is very important in many fields of science and military significance. It is widely applied. Space optical remote sensor design and manufacturing require precision and stability. Focusing mechanics is an important component of remote sensors. Focusing mechanics can guarantee the stability of the entire mechanics focusing accuracy, therefore the stability of research focusing mechanics is very important. In order to guarantee the space optics remote sensor focusing mechanics the stability, takes steps the space optics remote sensor focusing organization mechanics characteristic analysis from the classics contact theory. This article uses international general non-linear finite element analysis software ABAQUS to carry on mechanics characteristic analysis to the space optics remote sensor focusing mechanics. First acts according to the focusing mechanics unique feature, carries on the finite element to the structural model the grid division, the material attribute disposition and the boundary condition indeed grades. Then establishment contact non-linear finite element model, and to focusing organization finite element model infliction unit action. Like this contacts the result and the equivalent static analysis result which the nonlinear analysis obtains carries on the contrast and the analysis. This article last count result modality is 90HZ, satisfies the space optics remote sensor structure overall modality to request to be bigger than 50HZ.This article when carries on the dynamic analysis, extracts the structure kinetic energy and the acceleration curve. In the dynamic analysis obtained transient response analysis modality 70.5Hz, this also is bigger than 50HZ. The dynamic analysis indicated the structure dynamic stability has the distinct enhancement, has provided certain foundation for the space optics remote sensor following development work, reduced the overall system development cycle.

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