Contact heat resistance
Contact heat resistance
(OP)
Hello,
I am currently working on the thermal assessment of a cubesat with ansys. I would like to implement in the model the contact heat resistance between the components of the satellite. Typical contacts are aluminium planes, bolted, with a surface roughness of ~Ra 3.2, and under vacuum conditions. Tests will follow to determine the precise value of the resistance, but this will be in a while and I need some (rough) estimation now. Anyone could help me? any references about this topic?
Thank you very much
I am currently working on the thermal assessment of a cubesat with ansys. I would like to implement in the model the contact heat resistance between the components of the satellite. Typical contacts are aluminium planes, bolted, with a surface roughness of ~Ra 3.2, and under vacuum conditions. Tests will follow to determine the precise value of the resistance, but this will be in a while and I need some (rough) estimation now. Anyone could help me? any references about this topic?
Thank you very much





RE: Contact heat resistance
RE: Contact heat resistance
But a "nominal" or "loose" or "fully torqued" joint will allow the degree of contact to vary all over the place irregular. Some parts would be pass the heat exchange requirement, others will burn up. Higher bolt torques will also distort and bend poorly touching pieces into complete contact that would otherwise fail.
RE: Contact heat resistance