吉林大学学报(工学版) ›› 2004, Vol. ›› Issue (2): 237-240.

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Application of virtual sound intensity analysis system in engine noise source identification

LIANG Jie, SUN Wei, CHENG Peng   

  1. Center of Test Science, Jilin University, Changchun 130022, China
  • Received:2003-08-12 Online:2004-04-01

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Abstract: A virtual sound intensity analysis system was developed from the LabVIEW software development platform based on the fundamental principle of complex sound intensity measurement.Developed software of the analysis system was debugged and its measuring accuracy and margin of error were calibrated.Experiment results show that developed virtual system is characterized by high accuracy,stable performance,low cost,easy operation,and is comparable with equivalent system abroad.Location and identification of noise radiated from the surfaces of an engine were performed successfully by means of developed system.

Key words: virtual instrument, sound intensity, noise source identification

CLC Number: 

  • U467.493
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