According to the deformation coordination condition and the moment balance equation of the configuration

a static model was developed to enhance the load sharing characteristics of the face gear and cylindrical gear twice load split transmission configuration

taking into consideration the center deviation of gears

bearing deformation of shaft and bearing

etc. The influence of the torsional stiffness and supporting stiffness of the shaft on the load sharing characteristics was studied. The results showed that the input shaft torsional stiffness had little influence on the load sharing characteristics. When the ratio of the torsional stiffness of the split torque shaft was appropriate

the face gear split torque drive could obtain better load sharing characteristics

but the load sharing performance of the cylindrical gear split torque drive remained almost unchanged. Reducing the torsional stiffness or increasing the supporting stiffness of the compound gear shafts could improve the load sharing characteristics of the whole configuration. Therefore

in order to improve the load sharing characteristics of the transmission structure

the torsional stiffness and supporting stiffness of the shaft need to adopt the method of parameter matching design.