Modeling of Stationar Thermal Regime of Cylindrical Frame Element in Orbit

The problem of finding the temperature fields of a cylindrical element of an expandable construction was solved using the finite element method in the ANSYS software package. The steady thermal state of hollow cylindrical body in low earth orbit conditions is studied. Significance of inner boundary radiative heat exchange is evaluated. Steady-state thermal distribution is modeled for cases of copper, aluminum and mixed external coating. Method of passive regulation of stationary temperatures by changing width of solar heat absorbing copper foil coating is proposed.