Thermal expansion range and friction force direction
Thermal expansion range and friction force direction
(OP)
Does anyone have a good rule/method for accounting for the change in friction force direction between line heating and cooling? This change increases then thermal moment range.
Should we even bother?
Kevin
Should we even bother?
Kevin





RE: Thermal expansion range and friction force direction
Probably yes - especially for systems that are are not sufficiently controlled. However, it normally goes in the too difficult file.
RE: Thermal expansion range and friction force direction
Independent events are seldomly independent.
RE: Thermal expansion range and friction force direction
It's the thermal Stress Range (from Hot temp to Cold temp) that is important. Going from tie-in temp to hot OR from tie-in temp to cold is only significant for thermal loads on supports or displacements. The Full thermal stress range is the check for Code compliance.