作　　者： (）;

机构地区： 中国科学院广州中国科学院工业技术研究院

出　　处： 《计算机辅助工程》 2017年第1期65-69,共5页

摘　　要： 为提升军舰、潜艇和航空母舰外板的抗爆炸载荷冲击能力,采用Abaqus分析爆炸载荷下材料阻尼、应变率、加筋板的几何构型及加强筋的几何参数对结构动力学性能的影响.结果表明:加筋板相对于平板具有优异的抗爆炸载荷冲击能力;材料的阻尼及应变率对结构动力学性能影响较大;双十字加筋板相对于其他几何构型的加筋板具有更优良的抗爆炸载荷冲击的能力;矩形加强筋截面高宽比对加筋板动力学性能影响较明显,在结构设计中应该根据需求进行合理选择. To enhance the blast loading resistance ability of outer plates of warships, submarines and aircraft carriers, the effects of material damping, strain rate, geometry of stiffened plate and geometric parameters of stiffener on the dynamics performance of structure are analyzed by Abaqus. The results indicate that the stiffened plate shows better ability of resistance to blast loading than ordinary plate; the effect of material damping and strain rate on the dynamics performance of structure is great ; the stiffened plate with double cross reinforcement has better ability of resistance to blast loading than other geometrical configurations ; the effect of the depth-width ratio of rectangular stiffener on the dynamics performance of stiffened plate is also obvious, and this parameter must be rationally chosen to meet the structure design requirement.

关 键 词： 爆炸载荷 冲击 加筋板 阻尼 应变率 有限元

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