噪声与振动控制2017，Vol.37Issue(1)：113-116,4.DOI:10.3969/j.issn.1006-1335.2017.01.025
某工程机械散热系统降噪研究与试验验证
Noise Reduction Study and Experimental Verification for the Cooling System of a Construction Machine
摘要
Abstract
In order to reduce the noise of a construction machine,the main noise sources are identified by using the digital signal processing method and CFD simulation models.The aerodynamic noise generated by the cooling system of the machine is greatly reduced after the structural optimization of the shroud.The testing results show that the sound power level of the machine and the sound pressure level at the operator position are reduced nearly by 4.0 dB(A) and 2.0 dB(A) respectively.关键词
声学/工程机械/散热系统/空气动力性噪声/导风罩Key words
acoustics/construction machine/cooling system/aerodynamic noise/shroud引用本文复制引用
邵威,黄志亮,邓习树,雷新军..某工程机械散热系统降噪研究与试验验证[J].噪声与振动控制,2017,37(1):113-116,4.基金项目
国家科技支撑计划资助项目(2015BAF07B03) （2015BAF07B03）
