DocumentCode :
133467
Title :
The low-noise optimisation method for gearbox in consideration of operating conditions
Author :
Qing Tao ; Jianxing Zhou ; Wenlei Sun ; Jinsheng Kang
Author_Institution :
Sch. of Mech. Eng., Xinjiang Univ., Urumqi, China
fYear :
2014
fDate :
12-13 Sept. 2014
Firstpage :
222
Lastpage :
227
Abstract :
This paper presents a comprehensive procedure to calculate the steady dynamic response and the noise radiation generated from a stepping-down gearbox. In this process, the dynamic model of the cylindrical gear transmission system is built with the consideration of the time-varying mesh stiffness, gear errors and bearing supporting, while the data of dynamic bearing force is obtained through solving the model. Furthermore, taking the data of bearing force as the excitation, the gearbox vibrations and noise radiation are calculated by numerical simulation, and then the time history of node dynamic response, noise spectrum and resonance frequency range of the gearbox are obtained. Finally, the gearbox panel acoustic contribution at the resonance frequency range is calculated. Based on the conclusions from the gearbox panel acoustic contribution analyses and the mode shapes, two gearbox stiffness improving plans have been studied. By contrastive analysis of gearbox noise radiation, the effectiveness of the improving plans is confirmed. This study has provided useful theoretical guideline to the gearbox design.
Keywords :
dynamic response; elasticity; gears; machine bearings; noise abatement; numerical analysis; optimisation; power transmission (mechanical); structural panels; vibrations; cylindrical gear transmission system; dynamic bearing force; dynamic model; gear errors; gearbox noise radiation; gearbox panel acoustic contribution analyses; gearbox stiffness; gearbox vibrations; low-noise optimisation method; mode shapes; node dynamic response; noise spectrum; numerical simulation; resonance frequency range; steady dynamic response; stepping-down gearbox; time-varying mesh stiffness; Acoustics; Dynamics; Force; Gears; Noise; Resonant frequency; Vibrations; Gear Reducer; Gearbox; Noise; Panel Acoustic Contribution; Vibration;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Automation and Computing (ICAC), 2014 20th International Conference on
Conference_Location :
Cranfield
Type :
conf
DOI :
10.1109/IConAC.2014.6935490
Filename :
6935490
Link To Document :
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