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工程力学  2013 

远场水下爆炸作用下舰船设备冲击响应一体化动力学模型

DOI: 10.6052/j.issn.1000-4750.2011.09.0586, PP. 390-394

Keywords: 水下爆炸,舰船冲击,一体化动力学模型,DDAM方法,Taylor平板理论

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Abstract:

提出了一种远场水下爆炸作用下舰船设备冲击响应一体化动力学模型。该模型将动态设计分析方法(DDAM)与Taylor平板理论相结合,使得对舰船设备冲击响应分析更为高效。将船体外壳看做平板,将船体各层甲板和设备看做附加在平板上的多个质量,将水下爆炸冲击波看做指数衰减波,形成了一维分析模型。能够根据水下爆炸当量、爆距、舰艇吨位、总尺度、结构和设备质量与支撑刚度等参数预测舰船与设备的冲击响应。预测结果与舰船缩比模型水下爆炸试验结果进行了对比。从总体上看,船体冲击响应谱的趋势和量级一致。

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