The numerical analysis of the two coupling models shows that they have identical effects during the study of rotor dynamics of gear-coupled rotor systems,and the value of gear mesh stiffness in the force coupling model has almost no impact on its calculation results.
The results of an analysis indicate that the meshing rigidity has a relatively great influence on the intrinsic characteristics of two rotating modes, two groups of displacement mode and two planetary modes.
The new spatial cam sliding tooth precision transmission not only inherits the merits of the common dynamic sliding tooth transmission such as more tooth meshing and high meshing rigidity, but also has new characters such as simple structure, meshing clearance can be adjusted and high transmission precision ect.
Within this system, on the basis of the special features of planetary gear natural frequency and vibration mode, deduced were a formula showing the sensibility of an eigenvalue to meshing rigidity and the relationship between this eigenvalue and meshing strain energy.
On the basis of establishing finite element analysis model for swinging movable teeth drive to change the structural parameters of swinging movable teeth drive,a great quantity of numerical computations was carried out to engaging stiffness of the drive by appling finite element software,thus different variation curves of engaging stiffness were obtained. The influence of engaging stiffness affected by the variation of transmission parameters was discussed, and the variation law of engaging stiffness in swinging movable teeth drive was studied.
In the paper,with the simplified model of planetary gear trains,combined with their structure features,the relation characteristics of engaging phase difference in planetary gear trains are introduced in details,and the parameterized description suitable to the analysis model of planetary gear trains is created,and then the similarities and differences on phase relation and engaging stiffness influence coefficient between the spur gear planetary gear trains and the bevel gear ones are analyzed.