IV.1.5.3 Thermo-elastic load cases

Two data files corresponding to thermo-elastic load cases on the structure are also defined. The file “temp_disc.bdf” defines four load cases in which discontinuous temperature fields are applied to the structure. The four load cases are defined as follows:

• “TEMP_PZ_COLD” corresponds to a temperature of -100 ${}^{\circ }$C on panel +Z and -50 ${}^{\circ }$C on the rest of the structure.

• “TEMP_PZ_HOT” corresponds to a temperature of 120 ${}^{\circ }$C on panel +Z and 70 ${}^{\circ }$C on the rest of the structure.

• “TEMP_PANLAT_COLD” corresponds to a temperature of -100 ${}^{\circ }$C on lateral panels and -50 ${}^{\circ }$C on the rest of the structure.

• “TEMP_PANLAT_HOT” corresponds to a temperature of 120 ${}^{\circ }$C on lateral panels and 70 ${}^{\circ }$C on the rest of the structure.

The file “temp_grad.bdf” defines three load cases corresponding to gradients of 100 ${}^{\circ }$C/m applied on the entire satellite:

• “TEMP_GRAD_X” corresponds to a gradient in direction X.

• “TEMP_GRAD_Y” corresponds to a gradient in direction Y.

• “TEMP_GRAD_Z” corresponds to a gradient in direction Z.