Finite-element modeling and thermal analysis of the RT-70 radio telescope main reflector

Authors

  • A. I. Borovkov St. Petersburg State Polytechnical University, Russian Federation
  • D. V. Shevchenko St. Petersburg State Polytechnical University, Russian Federation
  • V. G. Gimmelman Design Bureau of Special Mechanical Engineering, Russian Federation
  • Yu. I. Machuev Special Machines Construction Bureau, Russian Federation
  • A. V. Gaev St. Petersburg State Polytechnical University, Russian Federation

DOI:

https://doi.org/10.1109/ICATT.2003.1238827

Keywords:

RT-70 radio telescope, mathematical model, thermal condition, 3D finite element model, ANSYS software

Abstract

The paper presents results of finite-element modeling and the analysis of temperature fields on the RT-70 radio telescope main reflector arising from the influence of solar heat. The worldwide experience of the design and creation of unique constructions is analyzed and the mechanical problems of the full-circle radio telescope RT-70 are classified. The finite-element thermal analysis of the RT-70 is chosen as the primary problem to solve. Mathematical and 3D finite-element models are developed to analyze the temperature fields in the RT-70 main reflector. These models allow estimating, with high validity, temperature values in various points of the main reflector in different climate conditions and different times of day.

References

Proc. 10th Int. ANSYS’2002 Conf. on Simulation: Leading Design into the New Millennium, Pittsburgh, USA, 2002.

ANSYS theory reference. 11th ed. SAS IP, Inc., 2001.

Borovkov, A.I.; Zubov, A.V. Finite element solutions of stationary and nonsteady heat conduction non-linear thermal problems for heterogeneous anisotropic media. Moscow: VINITI publishing, No. 897-B94. 1994. 44 p. (in Russian).

ICATT 2003 cover

Published

2003-09-27

Issue

Vol. 2 (2003): ICATT’2003 - Proc. of IV Int. Conf. on Antenna Theory and Techniques

Section

Antennas for radioastronomy