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Analysis of Shock and Dynamic Response of Shipboard Equipments

机译：舰载设备的冲击和动力响应分析

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All the missions completed by a ship are fully relied on the operations of the shipboard equipment systems. If there is severe damage on a critical system of the shipboard internal devices or equipments, the ship may lose its battle capacity. To examine whether the equipment system has been designed capable to withstand the prescribed underwater explosion, it is necessary at first to clarify the shock loadings acting on it, i. e. the shock environment. This paper imposes on the shipboard equipments by taking structural dynamic responses as input, describes the shock environment under variou exploding cases with acceleration time history of deck and doubling sine curve, simulates the dynamic response of a ship engine exhaust silencer under various shock environment, compares and analyses the two ways of how to describe shock environment. The results indicate: Under the same exploding case, shock environment described by acceleration time history of deck is more severe. Comparing to the shock spectrum, acceleration time history can characterize the shock environment more exactly.
机译：船舶完成的所有任务完全取决于舰载设备系统的运行。如果舰载内部设备或设备的关键系统受到严重损坏，则船舶可能会失去作战能力。为了检查设备系统的设计是否能够承受规定的水下爆炸，首先有必要弄清作用在其上的冲击载荷，即： e。震动环境。本文以结构动力响应为输入强加于舰船设备上，用甲板加速时间历程和正弦曲线加倍来描述各种爆炸情况下的冲击环境，模拟船舶发动机消声器在各种冲击环境下的动力响应，并进行比较。并分析了两种描述冲击环境的方法。结果表明：在同一爆炸情况下，甲板加速时间历程所描述的冲击环境更为严重。与冲击频谱相比，加速时间历史可以更准确地表征冲击环境。

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