| Distribution Regularity of Muzzle Shock-Wave Inside Protective Cover |
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| 作者姓名： | WU Jun LIU Jingbo DU Yixin |
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| 作者单位： | Department of Civil Engineering，Tsinghua University，Beijing 100084，China; Luoyang Hydraulic Engineering Technical Research Institute，Luoyang 471023，China |
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| 基金项目： | Supported by National Natural Science Foundation of China (No. 50578082) |
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| 摘 要： | The injury of gunners caused by muzzle shock-wave has always been a great problem when firing inside the protective cover. The distribution regularity and personnel injury from the muzzle blast-wave were investigated by both test and numerical simulation. Through the inside firing test, the changes of overpressure and noise have been measured at different measuring points in the thin-wall cover structure with different open widths and shallow covering thickness. The distribution regularity of muzzle shock-wave with different firing port widths is calculated by ANSYS/LSDYNA software. The overpressure distribution curves of muzzle shock-wave inside the structure can be obtained by comparing the test results with the numerical results. Then, the influence of open width and shallow covering thickness is proposed to give a reference to the protective design under the condition of the inside firing with the same cannon caliber.
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Distribution Regularity of Muzzle Shock-Wave Inside Protective Cover |
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| WU Jun,LIU Jingbo,DU Yixin.Distribution Regularity of Muzzle Shock-Wave Inside Protective Cover[J].Transactions of Tianjin University,2006,12(Z1). |
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| Authors: | WU Jun LIU Jingbo DU Yixin |
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| Abstract: | The injury of gunners caused by muzzle shock-wave has always been a great problem when firing inside the protective cover. The distribution regularity and personnel injury from the muzzle blast-wave were investigated by both test and numerical simulation. Through the inside firing test, the changes of overpressure and noise have been measured at different measuring points in the thin-wall cover structure with different open widths and shallow covering thickness. The distribution regularity of muzzle shock-wave with different firing port widths is calculated by ANSYS/LSDYNA software. The overpressure distribution curves of muzzle shock-wave inside the structure can be obtained by comparing the test results with the numerical results. Then, the influence of open width and shallow covering thickness is proposed to give a reference to the protective design under the condition of the inside firing with the same cannon caliber. |
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| Keywords: | artillery inside firing muzzle shock-wave overpressure distribution regularity |
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