journal article·2020-02-07Open access

Quasi-Static Load Sharing Characteristics of a Planetary Gear Set with Planet Journal Bearings

Zhiqiang Guo, Shenlong Li, Wei Wu, Liuyang Zhang

Applied Sciences· Volume 10· Issue 3

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.
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Research context

OpenAlex topics: Gear and Bearing Dynamics Analysis · Mechanical Engineering and Vibrations Research · Tribology and Lubrication Engineering

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Key Laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, China

China North Vehicle Research Institute, Beijing 100072, China

Funding

National Natural Science Foundation of China · National Key Research and Development Program of China Stem Cell and Translational Research

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