Analysis of load sharing characteristics of the thermoelastic coupled coaxial face gear power split transmission system
LIU Li
GUO Hui
ZHAO Ning
Abstract：[Objective]Taking a coaxial face gear power split transmission system as the research object,the influence of gear thermal deformation induced by the temperature field on stiffness and backlash was considered,and a combined approach of analytical method and finite element method was adopted to investigate the effect of the temperature field on the load sharing characteristics of the face gear power split transmission system.[Methods]A dynamic model of the coaxial face gear split torsion transmission system was established based on the concentrated mass method,and a calculation method for the load sharing coefficient of the transmission system was provided.The influence of the stiffness and the clearance due to the temperature on the load sharing performance of the transmission system was studied.[Results]The research results indicate that the thermal stiffness caused by the temperature field increases the average and amplitude of the load sharing coefficient of the transmission system,and the load sharing performance of the transmission system deteriorates.Considering the thermal deformation of the gear teeth caused by the temperature field,designing the appropriate clearance can effectively improve the load sharing performance of the transmission system,which is of great significance for improving the performance of the face gear transmission system.
Keywords：Thermoelastic couplingFace gearLoad sharing coefficientClearance
Publication Date：2025-12-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 72-80 )