重庆大学学报2018，Vol.41Issue(2)：1-9,9.DOI:10.11835/j.issn.1000-582X.2018.02.001
4级行星齿轮箱振动噪声预估及修形效果分析
Vibration noise prediction and tooth modification effect analysis of a four-stage planetary gearbox
摘要
Abstract
In order to investigate the vibration noise of multi-stage planetary gearbox under complex excitation before and after tooth modification,with taking the lifting gearbox of an offshore platform as the research object,a finite element model of the gearbox including coupling four-stage planetary gear train, bearings and housing is established,and vibration mode of the gearbox is analyzed.Internal dynamic excitations of gear pairs before and after tooth modification are solved by static and dynamic contact finite element methods,then a vibration noise prediction method considering tooth modification is developed, vibration responses of the gearbox before and after tooth modification are solved by mode superposition method,and accordingly radiation noise of the gearbox is predicted by acoustic boundary element method.The results show that the vibration noise of the four-stage planetary gearbox after modification are decreased apparently,and calculated vibration noise is in good agreement with experimental values.关键词
升降齿轮箱/行星齿轮传动/齿轮修形/振动噪声Key words
lifting gearbox/planetary gear transmission/gear modification/vibration and noise分类
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林腾蛟,曹洪,吕和生..4级行星齿轮箱振动噪声预估及修形效果分析[J].重庆大学学报,2018,41(2):1-9,9.基金项目
国家自然科学基金资助项目(51175524) （51175524）
国家科技支撑计划项目(2015BAF06B02).Supported by the National Natural Science Foundation of China (51175524 )and National Key Technology Research and Development Program of the Ministry of Science and Technology of China(2015BAF06B02). （2015BAF06B02）
