Noname

When developing large space structures (antennas), it is very important to evaluate the influence of temperature on the accuracy of the deformed shape of the truss reflecting surface. In this paper, an uncoupled problem of thermo elasticity is solved. The temperature field due to the heat flows from the Sun and the Earth is determined. The stress-strain state of the reflector frame was calculated, which made it possible to estimate the change of the reflecting surface shape in terms of the root-mean-square deviation. The proposed algorithm formed the basis for the development of software modules that can be used in computer simulation to predict the mechanical properties of reflectors and the corresponding radio characteristics of antennas.

References

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