舰船上层建筑的隔振及抗冲击特性分析

Research on vibration isolation and anti-shock design of ship′s superstructure

舰船上层建筑由于有众多的仪器设备,因而其隔振与抗冲击性能受到重视.采用基于有限元的数值模拟方法,对某舰船上层建筑进行了隔振与抗冲击设计以及动力学特性分析.为了揭示舰船上层建筑的振动与冲击响应规律,模拟分析了上层建筑的隔振形式以及隔振参数对来自机舱振动传递的影响,探讨了水下非接触爆炸载荷,包括爆炸冲击波以及爆炸产生的二次脉动对舰船上层建筑的影响,为舰船的隔振与抗冲击设计提供了参考.

As lots of precision instruments are installed in warship＇s superstructure, vibration isolation and anti-shock of them were attached to great importance. Vibration isolation and anti-shock of warship＇s superstructure were designed by numerical simulation based on finite element method. FEA model of ship including vibration isolation systems were established and its dynamic properites were analyzed. To reveal the discipline of vibration isolation and anti-shock of warship＇s superstructure, the influences of isolation form and isolation parameters on vibration transmission from engine room were investigated, as well as the influences of the underwater explosion, including its explosive blast and the secondary pulsation generated by explosion. That provides the basis for vibratin isolation and anti-shock design of warship＇s superstructure.