Parameter "Self increase of temperature"

Question

Hi all,  Could it be that parameter "Self increase of temperature" in the "Internal Working Cycles" in a Mission Profile has no effect when calculting the failure rates for IEC TR 62380?       When I'm changing the value and do recalculation then there is no effect. Also I'm not able to find a reference to value in the "prediction forumula" of the elements:       When I look in "variables" I find this information:       Can you confirm that "self increase" is not used in IEC TR 62380?     Best regards,  Michael

medini_1023909254 · Answer

Yes I can confirm - it is for the usage of the Mission Profile with SN29500 and IEC61709.  See also the user guide Ansys medini™ analyze User Guide > Safety Analysis > Reliability Prediction > Mission Profiles for Failure Rate Prediction > Using Mission Profiles with SN29500, IEC61709, MIL-HDBK-217F, and GJB299C  Eckhardt