Dynamic modeling and analysis of thin-webbed spur gear pair

Hu, Zehua; Li, Wentao; Chen, Siyu; Guan, Xinping; Wang, Zhiwei; Tian, Zhaoyang

doi:10.1016/j.tws.2022.110386

Cited by 9 publications

(2 citation statements)

References 40 publications

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“…In recent decades, the modeling methods of gear dynamics are becoming increasingly precise. 17,18 Hu has established a spur gear system that considers thinwalled webs, 19,20 and Tian establishes a transmission system that considers the web and tooth structure of bevel gears. 21 There are many studies on the dynamics of gear transmission systems, but there are few literature studies analyzing and studying together with gerotor pumps These investigations show that gear drive could induce certain vibration and noise problem like rattle and whine noise Therefore, in this paper, a dynamic model, to simulate the dynamic performance of gear drive with the effect of the torque fluctuation due to cavitation of gerotor pump, is proposed firstly.…”

Section: Introductionmentioning

confidence: 99%

“…In recent decades, the modeling methods of gear dynamics are becoming increasingly precise. 17,18 Hu has established a spur gear system that considers thin-walled webs, 19,20 and Tian establishes a transmission system that considers the web and tooth structure of bevel gears. 21 There are many studies on the dynamics of gear transmission systems, but there are few literature studies analyzing and studying together with gerotor pumps…”

Section: Introductionmentioning

confidence: 99%

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Dynamic performance analysis of a gear transmission system due to cavitation in gerotor pump

Wang,

Hu,

Tian

et al. 2023

Journal of Low Frequency Noise, Vibration and Active Control

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In this work, a dynamic model considering time-varying mesh stiffness and backlash was proposed and a test rig was built to investigate the vibration behavior of the idle gear set in a gerotor pump. The effects of input shaft speed, torque fluctuation, and gear tooth backlash on the dynamic performance of gerotor pump were analyzed according to the numerical and experimental results. Results demonstrate that when the torque fluctuation is neglected, the dynamic transmission error of drive gear is dominated by the first three mesh harmonic components; however, the RMS values of vibration acceleration have high frequency characteristics. When the torque fluctuation is considered, the dynamic responses of gerotor pump are modulated by the torque fluctuation. The effect of tooth backlash on the dynamic performance of gerotor pump is limited and mostly depended on the torque fluctuation condition. The gerotor pump noise is dominated by the low frequency component around the mesh frequency. The vibration energy can be divided into two parts in the frequency domain. In the low frequency band, the vibration energy is caused by the mechanical vibration. However, in the high frequency band, the cavitation phenomena may cause the concentration of the vibration energy and resonant of pump structure.

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