Research of Numerical Prediction Method about Shock Environmental Laws of Entirety Hull

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (17) : 88-93.

Cui-jie1，Li-ye2，Chen ying-yu2，Zhou Sai-bei1，Song hong-bao2

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Abstract

Numerical simulation and method of acoustic-structure coupling of ABAQUS are used to simulate the dynamic response of the hull which subject to the non-contact underwater explosion in this paper. Through comparing with experimental data, this method could give better simulation and forecast of shock environment of warship underwater explosion. On this basis, longitudinal distribution laws of spectrum based on numerical simulation was concluded and mathematical models with some degree of generality was established which could be used to predict the shock environment. Vertical distribution laws of dynamic response and the change laws in condition of different attack angles are displayed in this paper either. The conclusion may provide relevant references for shock-resistant design of warship.

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Shock environment / Underwater explosion / Mathematical models / Acoustic-structure coupling

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Cui-jie1，Li-ye2，Chen ying-yu2，Zhou Sai-bei1，Song hong-bao2. Research of Numerical Prediction Method about Shock Environmental Laws of Entirety Hull[J]. Journal of Vibration and Shock, 2015, 34(17): 88-93

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