阶次跟踪技术在挖掘机驾驶室噪声源识别中的应用  

Application of Order Tracking Technology to Identification of Excavator Cabin Noise Source

作　　者：曾维俊[1] 陈剑[1] 

机构地区：[1]合肥工业大学噪声振动工程研究所

出　　处：《工程机械》2014年第1期20-24,118-119,共5页Construction Machinery and Equipment

摘　　要：阶次跟踪技术在旋转机械信号分析方面有独特的优势,介绍阶次跟踪技术的基本原理和等角度采样的实现方法。同步采集某液压挖掘机驾驶室内噪声信号及发动机转速信号,结合挖掘机结构和相关参数,采用阶次跟踪技术识别出驾驶室内主要噪声源,并以阶次切片的形式分析各主要噪声源的贡献量随发动机转速的变化情况。A order tracing used to identify noise,inside the cab.There is an extra superiority for analyses by order tracing on the part of rotary mechanical signals that the text goes further to introduce its basic principles and equiangular sampling realization,while synchronizing pickup of a hydraulic excavator's noise signals inside the cab with the engine's RPM signals,which was combined with the excavator's configuration and relevant data to have identified main noise sources inside the cab.And then,in the manner of level sectioning we analyzed contribution by the main noise sources along with variation of the engine RPM.

关 键 词：阶次跟踪技术 液压挖掘机 噪声源识别 

分 类 号：TU621[建筑科学—建筑技术科学]