Based on the reliability theory

a more complete and multi-objective optimization model of planetary gear transmission is rebuilt.By the mathematical software Matlab and two programming methods

the optimization model is solved.By using gear parameters after optimization

the analysis of static characteristics of the new system is compared and analyzed to determine the most reasonable optimization results.At the same time

the planet carrier model for finite element analysis is built

the new planet carrier can be suited the gear drive model

their own weight is also reduced under the premise of meeting the strength and other characteristics.