Abstract
The quasi-static load sharing characteristics of a planetary gear set with planet journal bearings are numerically investigated. The application of journal bearings instead of rolling bearings in planetary gear sets is an alternative to increase the rotation speed. Therefore, an effective analysis method is needed to estimate the dynamic performance of a planetary gear set with planet journal bearings. Here, an available load sharing factor computation method is developed considering the effect of the variable journal bearing stiffness. Results of an experiment are used to validate the effectiveness of the computation method. Furthermore, the load sharing characteristics of a planetary gear set with planet journal bearings are influenced by bearing parameters and operating conditions significantly due to the changing bearing stiffness of journal bearings. The effects on the load sharing factor and the bearing stiffness are studied in detail simultaneously based on the proposed analysis method. The load sharing factor of a planetary gear set with planet journal bearings has a similar variation with the bearing support stiffness under the same load. These researches provide a theoretical basis for the application of journal bearings in planetary gear sets.
Highlights
In planetary gear sets, multiple planet gears are used to form power split and planetary gears provide higher power density than parallel axis gears [1]
Most of the investigations focused on the load sharing characteristics of planetary gear sets with planet rolling bearings
Equivalent meshing integrated stiffness of the planetary gear set is composed of three parts: the sun-planet meshing pair, the planet-ring meshing pair, and the planet gear supported by a journal bearing
Summary
Multiple planet gears are used to form power split and planetary gears provide higher power density than parallel axis gears [1]. Showed that sharing characteristics are improved with increasing input torque by an gear sets using planet journal load sharing analysis model experimental study. It is aimed to provide an effective method for the design of theinfluences high-speed established a nonlinear time-varying dynamic model and quantitatively investigated the set parameters, using planetmanufacturing, journal bearings. Most of the investigations focused on the load sharing characteristics of planetary gear sets with planet rolling bearings. For the planetary gear set using journal bearings, the bearing stiffness becomes variable It leads to more complicated load sharing characteristics. The paper studies the load sharing characteristics of planetary gear sets using planet journal bearings. A load sharing analysis model considering the Figure 2 presents the planet journal bearing inside a planet gear set.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
