Abstract
Aimed at an internal mesh planetary gear with small tooth number difference (PGSTD) reducer, this paper proposes dynamic characteristics analysis. First, static finite element (FE) analysis is performed to check the structural strength with the stress distribution in the gear teeth. Second, by means of the dynamic contact FE method, the internal dynamic excitations of teeth mesh are obtained, including mesh stiffness excitation, transmission error excitation and mesh impact excitation. According to the established model for dynamic FE modal analysis, the natural frequencies and mode shapes of the planetary gear apparatus (PGA) are calculated, and its structural dynamic response and acceleration noise are researched with the comprehensive consideration of internal and external excitations. Finally, the noise and vibration testing on the PGA is carried out by utilizing the vibration test equipment. The results confirm that the predicted values are consistent with the experimental results.
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Chao Huang received his B.S. in Mechanical Design, Manufacturing and Automation from North University of China, in 2005. He received his M.S. in Mechanical Design and Theory from Kunming University of Science and Technology in 2008. At present, he is a Ph.D. candidate at the State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China. His research interests include high performance electromechanical transmission system, and mechanical system dynamics.
Jia-Xu Wang is currently a professor at the State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China. He serves as an academic leader of the national key discipline of Mechanical Engineering. His main research areas are electromechanical transmission and intelligent control technology, robotic precision driving mechanism, spacecraft mechanism, mechanical tribological and reliability design.
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Huang, C., Wang, JX., Xiao, K. et al. Dynamic characteristics analysis and experimental research on a new type planetary gear apparatus with small tooth number difference. J Mech Sci Technol 27, 1233–1244 (2013). https://doi.org/10.1007/s12206-013-0307-4
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DOI: https://doi.org/10.1007/s12206-013-0307-4