The dynamic differential equation of the planetary train system was set up considering planetary carrier micro displacement

time-varying meshing stiffness

revolution damping and components gravity. The Modelica language for modeling

analyzing and optimizing the engineering system of various fields was used to solve the problem

and the impact of support stiffness of the main components on dynamic load sharing characteristics of this train was analyzed. The research results show that under the condition of rigid support

the load between the planet gears is seriously uneven at a smaller system error. When the support stiffness of one or more components is less than 107N/m

a good load sharing effect of this train could be achieved. The load sharing characteristic of this train is deteriorated rapidly with the increase of this component support stiffness within the support stiffness sensitive range of corresponding component. The load sharing effect for reducing the supporting stiffness of multiple components is better than that of single ones. The load is redistributed between planetary gears while the support stiffness of a planetary gear is changed. When the support stiffness of a planetary gear is cut down

its own load is reduced.