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Structure Design and Analysis of Multiband and Total Aperture Optical System

Author: FuJiaZuo
Tutor: FuYueGang; HanXu
School: Changchun University of Science and Technology
Course: Optical Engineering
Keywords: Multiband and Total Aperture Structure design Modal analysis Thermal optical analysis
CLC: TN214
Type: Master's thesis
Year: 2014
Downloads: 8
Quote: 0
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Abstract


The working environment of Multiband aperture optical system is more complex, the overall optical systems may lead the phenomenon of resonance in a complex transport conditions. And there is a sharp drop in system performance as the temperature changes. In order to estimate the performance parameter of the optical instruments which are under the influence of the field of environment, still need to be modal analysis and thermal optical analysis after complete design of system structure,In this paper, use the method of optical machine thermal integration analysis to finite element analysis the simplified optical systems. Designing the structure of multiband aperture optical system is small, lightweight. From the modal analysis results show that the first order natural frequency of125.46Hz greater than the transportation vehicle incentive frequency50Hz. The system does not resonate. In the thermo-optical analysis, through the Zernike polynomial fitting PV value and RMS value of the primary and secondary reflector mirror, it can analyzed the influence of thermal deformation on the system performance, What is said above provides thermal control solutions for Multiband aperture optical system which is used in the field environment. The thermal stress tensor of structure is less than the yield strength of mechanical material, According to the result of the above, indicating mechanical material stable and reliable. Multiband aperture optical system practical research laid the foundation.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Infrared technology and equipment > Infrared optics
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