Characterizations of gun barrel vibrations of during firing based on shock response analysis and short-time Fourier transform

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• 作者：Hak In Gimm (1) mazeblue@add.re.kr
  Ki Up Cha (1)
  Chang Ki Cho (1)
• 关键词：Barrel behaviors &#8211 ; Effective shock duration &#8211 ; Modal analysis &#8211 ; Shock response analysis &#8211 ; Short ; time Fourier transform
• 刊名：Journal of Mechanical Science and Technology
• 出版年：2012
• 出版时间：May 2012
• 年：2012
• 卷：26
• 期：5
• 页码：1463-1470
• 全文大小：6.4 MB
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• 作者单位：1. Agency for Defense Development, Daejon, 305-600 Korea
• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Structural Mechanics
  Control Engineering
  Industrial and Production Engineering
  
• 出版者：The Korean Society of Mechanical Engineers
• ISSN：1976-3824

文摘

The behavior of shock vibration for a medium caliber gun barrel was experimentally investigated and then, numerical modal analysis, a signal processing technique as well shock response analysis were carried out en route to the detailed analyses. This approach was initiated by identifying mode frequencies from the numerical model and thus the frequencies were clarified using the periodogram together with the spectrogram based on the time frequency analysis. A shock response analysis was employed to draw more physical interpretations regarding the barrel behaviors due to firing shock. In this paper, therefore, the overall process of shock vibration analysis was demonstrated for analyzing the shock behavior of the gun barrel.