The accuracy problem of FEA in the deformation of larger-aperture optical components

Shimeng Li; Rongzu Zhang

doi:10.1117/12.866028

13 October 2010 The accuracy problem of FEA in the deformation of larger-aperture optical components

Shimeng Li, Rongzu Zhang

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 765407 (2010) https://doi.org/10.1117/12.866028
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

The paper studied error of the finite element numerical values, which was about the large-aperture optical components. Then, a one-dimensional model of beam and a two-dimensional model of square plant had been established, respectively. It calculated the two solutions of FEA and elastic theory in the different unit size. According to the results, it's found that the value of FEA was bigger than the theoretical solution, and the error of the finite element numerical values decreased with the increase of the number of units.

Citation Download Citation

Shimeng Li and Rongzu Zhang "The accuracy problem of FEA in the deformation of larger-aperture optical components", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 765407 (13 October 2010); https://doi.org/10.1117/12.866028

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