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Journal of System Simulation

Abstract

High-precision optical system is easy to be affected by space environment. Under the condition of high temperature, structural load, etc., the image quality of the optical system becomes poor, and the opto-mechanical-thermal coupling analysis is needed. Due to the independent development of the optical simulation, structure simulation, thermal simulation and others, the simulation data can not be effectively coupled and transferred.An interdisciplinary coupling analysis method is proposed, in which the integrated analysis idea is adopted and the polynomial fitting is used as the interface to solve the irregular deformation of optical element surface. Through the implement of the best fitting rigid body displacement, the best fitting radius of curvature, polynomial fitting, etc., the coupling analysis between finite element analysis tool and optical analysis tool is realized. Taking Cassegrain system as the test object, the effectiveness of the method is verified. The method provides a reference to the optical performance evaluation of the optical-mechanical system and the design optimization of the system under extreme conditions.

First Page

1381

Revised Date

2023-02-28

Last Page

1394

CLC

TP317

Recommended Citation

Liang Zhao, Zhigang Zhang, Yao Sun. Opto-mechanical-thermal Coupling Analysis Method and Implementation of High-precision Optical System[J]. Journal of System Simulation, 2023, 35(6): 1381-1394.

DOI

10.16182/j.issn1004731x.joss.23-0092

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