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Volume 30 Issue 5
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Article Navigation >  Explosion And Shock Waves  > 2010  >  30(5): 551-555
GUAN Yong-hong, HU Ba-yi, HUANG Chao. Vibrationanalysisofanexplosionvesselbasedonwaveletpackettransform[J]. Explosion And Shock Waves, 2010, 30(5): 551-555. doi: 10.11883/1001-1455(2010)05-00551-05
Citation: GUAN Yong-hong, HU Ba-yi, HUANG Chao. Vibrationanalysisofanexplosionvesselbasedonwaveletpackettransform[J]. Explosion And Shock Waves, 2010, 30(5): 551-555. doi: 10.11883/1001-1455(2010)05-00551-05
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Vibrationanalysisofanexplosionvesselbasedonwaveletpackettransform

doi: 10.11883/1001-1455(2010)05-00551-05
  • 1.

    InstituteofFluidPhysics,ChinaAcademyofEngineering,Mianyang 621900,Sichuan,China

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  • Corresponding author: GUAN Yong-hong
  • Publish Date: 2010-09-25
    Abstract
  • Thewaveletpackettransform,inwhichthewaveletDB8waschosenasthebasisfunction, wasappliedtoanalyzethevibrationsignalsofa25-kg-TNT-equivalentexplosionvessel.Andtheprincipleandcharacteristicsofwaveletpacketanalysiswereintroducedandtheexperimentalvibrationaccelerationsignalsoftheexpl sionvesselwerepresented.Thetime-frequencydistributionsoftheexperimentalsignalswerecalculatedbythewaveletpacketmethod. Theresultsshowthattheenergy distributionofvibrationoftheexplosionvesselhasaverywidefrequencyrangeandfluctuatesintensely, andthequakeprooftrenchattenuatesapproximately97% ofthevibrationenergy.
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