Influenceofdeckchargeontimefrequencycharacteristicsofablastingvibrationsignal

ZHAOMing-sheng;LIANGKai-shui;LIBen-wei

Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (7) : 85-88.

PDF(1573 KB)
PDF(1573 KB)
Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (7) : 85-88.
论文

Influenceofdeckchargeontimefrequencycharacteristicsofablastingvibrationsignal

  • ZHAOMing-sheng1,2,LIANGKai-shui2,LIBen-wei3
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Abstract

Inordertostudytheinfluenceofdeckchargeontimefrequencycharacteristicsofblastingvibrationsignals,singleholeblastingtestswithdifferentdeckchargeswereconducted.Basedonthemeasureddata,usingthecombinedmethodofwaveletanalysisandAOKtimefrequencydistributiontoexpandtheblastingvibrationsignalswithdifferentdeckchargeindifferentfrequencyband,andusingbandenergyratioandbandenergydurationasindexes,theinfluenceofdeckchargeontimefrequencycharacteristicsofblastingvibrationsignalswasanalyzed.Theresultsshowedthatdeckchargehaslargeeffectsontimefrequencycharacteristicsofblastingvibrationsignals;withincreaseindeckcharge,theproportionoflowerfrequencyenergyintotalenergyincreasesandbandenergydurationextends.Theresultsprovidedabasisforstudyingtheinfluenceofdeckchargeontimefrequencycharacteristicsofblastingvibrationsignals,antivibrationandvibrationreduction.

Key words

blastingvibration / deckcharge / AOKtimefrequencydistribution / waveletanalysis / timefrequencycharacteristics / energycharacteristics

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ZHAOMing-sheng;LIANGKai-shui;LIBen-wei. Influenceofdeckchargeontimefrequencycharacteristicsofablastingvibrationsignal[J]. Journal of Vibration and Shock, 2012, 31(7): 85-88
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