摘要
在对当前面板声学贡献量分析方法研究的基础上,提出了面板声功率贡献量分析方法.针对齿轮箱辐射噪声,利用有限元和边界元理论建立齿轮箱的计算模型,对其进行噪声辐射模拟计算.根据齿轮箱的面板区域划分,计算齿轮箱的面板声功率贡献量,从而确定齿轮箱辐射声功率的主要贡献区域,同时确立噪声峰值对应频率的主要贡献区域,并对齿轮箱进行结构改进与验证分析.结果表明,此方法有利于齿轮箱噪声控制的研究与实现.
Panel acoustic power contribution analysis is put forward according to panel acoustic contribution analysis methodology investigation.According to gearbox noise radiation,finite element method and boundary element method are used to construct gearbox calculation model.According to the partition regions of gearbox,panel acoustic power contribution can be obtained by every panel calculation.Then,main contribution regions of the power and peak frequency are found according to calculation results.Improvement design and analysis are carried out based on acoustic power analysis for gearbox.It can be concluded that this method is helpful for gearbox noise control investigation and realization.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
2012年第2期215-220,共6页
Journal of Dalian University of Technology
基金
国家自然科学基金资助项目(51175057)
工业装备结构分析国家重点实验室开放基金资助项目(GZ0817)
中央高校基本科研业务费专项资金资助项目(DUT11NY04)
关键词
齿轮箱
降噪
面板声学贡献量分析
面板声功率贡献量分析
gearbox noise reduction panel acoustic contribution analysis panel acoustic power contribution analysis
