Identificationoftrucknoisesourcesunderpassbyconditionbasedonwavebeamformingmethod

CHUZhi-gang;YANGYang;WANGWei-dong;XIAOXin-biao;JIANGZhong-han;HEYan-song

Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (7) : 66-70.

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PDF(1014 KB)
Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (7) : 66-70.
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Identificationoftrucknoisesourcesunderpassbyconditionbasedonwavebeamformingmethod

  • CHUZhi-gang1,2,YANGYang3,WANGWei-dong4,XIAOXin-biao5,JIANGZhong-han1,HEYan-song1
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Abstract

Integratingthetechniqueofnoisesourceidentificationbasedonacousticalbeamformingwiththevehiclefieldpassbynoisemeasurementtechnique,anintegratedvehiclepassbynoisesourceidentificationsystemwasconstructedandthecorrespondingtestproceduresandcalculationmethodsweregiven.Thetrucknoisesourceunderpassbyconditionwasidentifiedutilizingthesystem.Theresultsshowedthattheengineisthedominantcontributortopassbynoiseandthecorrespondingenginespeedis2400r/minwhenthemaximum SPLoccurs.Furtherenginenoisesourceidentificationresultsshowedthatturbocharger,generatorandcylinderheadcoverarethemainnoisecontributors.

Key words

wavebeamforming / testsystem / passbynoise / noisesourceidentification

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CHUZhi-gang;YANGYang;WANGWei-dong;XIAOXin-biao;JIANGZhong-han;HEYan-song. Identificationoftrucknoisesourcesunderpassbyconditionbasedonwavebeamformingmethod[J]. Journal of Vibration and Shock, 2012, 31(7): 66-70
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