A temperature measurement method for testing lubrication system or revealing scuffing failure mechanism of spur gear

In order to meet the needs of temperature measurement for testing lubrication system or revealing scuffing failure mechanism of spur gear, a temperature measurement method analysis is carried out. This method shifts the high temperature region to a position convenient for measurement. And the measurement target including the highest temperature of gear and its location are also shifted to the new position. Considering the change of gear temperature field caused by thermal barrier covering the end face, the temperature difference of the target measurement position and the direct measurement position is analyzed by finite element method. Taking a spur gear pair as an example, its temperature field is obtained in the thermal steady state before and after shifting of temperature. The results show that temperature of the target measurement position and the direct measurement position is same in distribution, and temperature of the direct measurement position is higher than the temperature in the target measure...