Abstract
The plastic gear receives the effect of friction heat and hysteresis heat, and the temperature rises with the operating time, and the elastic modulus lowers. And, the material allowable bending stress lowers, and the strength of the gear weakens. Therefore, it seems to be very important to estimate ″Heat″ in order to more accurately know the strength of the plastic gear. This simulation software gives friction heat and hysteresis exothermic reaction in the operation of the gear, and in addition, it estimates the temperature of the gear considering the heat radiation of operation condition. Then, the elastic modulus is estimated at allowable stress. In this paper, reliability and experimental result of the software are reported.
