Research Article

Thermal-Structural Analysis of the Support Structure for a Modular Space Deployable Antenna

Table 1

Thermophysical parameters of antenna materials.

Material propertyAluminum alloySteel cable

Elastic modulus: (GPa)70150
Poisson ratio: 0.310.3
Density: (kg/m3)28407850
Thermal conductivity: (W/m/K)19549.8
Specific heat capacity: (J/kg)924465
Thermal expansion coefficient: (Kāˆ’1)
Emissivity: 0.60.26
Radiation absorptivity: 0.90.9