FINITE-ELEMENT ANALYSIS OF THE MECHANICS OF THE TELESCOPE LENS FOR THE LIRA-B SPACE EXPERIMENT
V. P. Smekalin, V. N. Fedoseev, Yu. I. Shanin, D. A. Yagnyatinskii
Research Institute of the Luch Research and Production Association, ul. Zheleznodorozhnaya 24, Podolsk, 142103, Moscow Region
Keywords: объектив телескопа, расчёты механики, внешние нагрузки, ANSYS, математические модели, приведённые характеристики, telescope lens, mechanics calculations, external loads, ANSYS, mathematical models, given characteristics
Abstract
This paper presents finite-element mathematical models for the real and simplified telescope lenses of the Lira-B space experiment. The results of calculation of the mechanics of the lens upon exposure to various external loads, both static and dynamic, are given. The calculations were performed using the ANSYS software package. Three methods for determining the characteristics of lightweight structures of the lens parts, two of which are used in the calculations, are described. Comparison of the results obtained using the real and simplified (reduced) models indicates that the simplified model can be used for initial estimates. Moreover, using this model with reduced characteristics, it is easier to develop and generate a finite element mesh, and it requires significantly shorter computational time
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