噪声与振动控制2017，Vol.37Issue(2)：80-84,5.DOI:10.3969/j.issn.1006-1355.2017.02.017
基于OTPA方法的挖掘机驾驶室结构噪声源识别
Structure-borne Noise Source Identification of an Excavator's Cab based on Operational Transfer Path Analysis
齐全 1周以齐 1崔文玲2
作者信息
- 1. 山东大学 机械工程学院 高效洁净机械制造教育部重点实验室,济南 250061
- 2. 北方自动控制技术研究所,太原 030006
- 折叠
摘要
Abstract
The operational transfer path analysis (OTPA) is actually an improvement of the traditional transfer path analysis method. So far OTPA method has been widely applied to the analysis of vibration signal transmission in engineering machinery. While the application of OTPA to the analysis of transmission between vibration signals and noise signals is relatively few. In this paper, the OTPA is applied to analyze the structure-borne noise of an excavator's cab with the engine vibration as the major vibration source. The singular value decomposition technique (SVD) is applied to process the input signal. The validity of the OTPA method is verified by comparing the synthetic output signal with the measured output signal. By means of the path noise contribution analysis, some noise reduction measures are proposed.关键词
声学/工况传递路径分析/奇异值分解/挖掘机/噪声贡献/结构噪声Key words
acoustics/OTPA/SVD/excavator/noise contribution/structure-borne noise分类
通用工业技术引用本文复制引用
齐全,周以齐,崔文玲..基于OTPA方法的挖掘机驾驶室结构噪声源识别[J].噪声与振动控制,2017,37(2):80-84,5.
