Vibrationanalysisofanexplosionvesselbasedonwaveletpackettransform

GUAN Yong-hong; HU Ba-yi; HUANG Chao

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

Volume 30 Issue 5

May 2014

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Article Navigation > Explosion And Shock Waves > 2010 > 30(5): 551-555

SHI Hua-qiang, ZONG Zhi, JIA Jing-bei. Short-range characters of underwater blast waves[J]. Explosion And Shock Waves, 2009, 29(2): 125-130. doi: 10.11883/1001-1455(2009)02-0125-06

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

SHI Hua-qiang, ZONG Zhi, JIA Jing-bei. Short-range characters of underwater blast waves[J]. Explosion And Shock Waves, 2009, 29(2): 125-130. doi: 10.11883/1001-1455(2009)02-0125-06

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

Abstract

Thewaveletpackettransform,inwhichthewaveletDB8waschosenasthebasisfunction, wasappliedtoanalyzethevibrationsignalsofa25-kg-TNT-equivalentexplosionvessel.Andtheprincipleandcharacteristicsofwaveletpacketanalysiswereintroducedandtheexperimentalvibrationaccelerationsignalsoftheexpl sionvesselwerepresented.Thetime-frequencydistributionsoftheexperimentalsignalswerecalculatedbythewaveletpacketmethod. Theresultsshowthattheenergy distributionofvibrationoftheexplosionvesselhasaverywidefrequencyrangeandfluctuatesintensely, andthequakeprooftrenchattenuatesapproximately97% ofthevibrationenergy.
- mechanicsofexplosion,
- time-frequencyanalysis,
- waveletpackettransform,
- explosion vessel

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