Optomechanical integrated analysis method for pre-processing interface program and mirror surface shape optimization method

Abstract

The invention discloses an optomechanical integrated analysis method for pre-processing interface program and mirror surface shape optimization method. The method comprises the steps of establishing a mirror finite element model, numbering all finite element mesh nodes in the mirror finite element model, based on the node number extracting coordinate information of finite element mesh nodes, calculating the weighted factor of the mirror node area of the finite element mesh node, based on the weighted factor and coordinate information of the mirror node area, using the Zernike Zernike polynomials as the basis functions for fitting, acquiring the relationship between the displacement of the mirror rigid body and the displacement of the Zernike Zernike polynomial and the mirror mesh node, conducting optomechanical interface pre-processing of the linear relation to generate the finite element analysis pre-processing file, introducing the finite element analysis pre-processing file into the finite element model for the optomechanical system dynamics integration analysis and mirror surface shape optimization. The optomechanical integrated analysis method for pre-processing interface program and mirror surface shape optimization method solves the problem that a large amount of fitting data leads to a large amount of calculation and a failure of fitting in an optomechanical program post-processing.

Description

technical field [0001] The invention relates to the technical field of optical-mechanical-thermal integration analysis, and more specifically, relates to an optical-mechanical integration analysis method of a pre-processing interface program and a mirror surface shape optimization method. Background technique [0002] High-precision optical imaging systems will inevitably be subject to various dynamic disturbances during use. For example, space optical remote sensors will be subject to micro-vibrations of reaction flywheels, while ground-based telescopes will be subject to dynamic disturbances such as wind-borne earthquakes. After the optical-mechanical system is disturbed by power, the relative distance between the optical components also changes while the optical components themselves are deformed. The vibration of the visual axis of the optical imaging system caused by the dynamic disturbance is one of the main factors that cause the degradation of the imaging quality of t...

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Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides an optical-mechanical integration analysis method based on the pre-processing interface program, which solves the problems of reducing the large amount of calculation and fitting failure caused by the large amount of fitting data in the post-processing mode of the optical-mechanical program

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