Optimum design of metallic corrugated core sandwich panels subjected to blast loads
Optimum design of metallic corrugated core sandwich panels subjected to blast loads
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DOI：
10.1016/s0029-8018(00)00034-2
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发表时间：
2001-07-01
影响因子：
5
通讯作者：
Wu, PW
中科院分区：
文献类型：
--
作者：
Liang, CC;Yang, MF;Wu, PW
最近，海军工业继续开发创新的轻质结构概念，目的是在船舶的选定区域寻找传统板梁金属结构的替代品。本研究采用可行方向法（FDM）与回溯程序法（BPM）相结合的组合算法，研究了承受爆炸载荷的金属波纹芯夹芯板的优化设计，其中选择波纹腿、波纹角度、面板厚度、芯材厚度和波纹节距作为设计变量，并考虑轴向压缩、弯曲和屈曲约束以及制造尺寸限制的侧面约束。优化研究采用某海军舰艇甲板室波纹芯夹芯板模型。结果表明，波纹腿、波纹角和芯厚度对于芯部件最重要，而波纹腿和面板厚度对于面板部件最重要。详细讨论了设计变量的重要性。优化结果可为设计人员提供有益的参考。 (C) 2001 Elsevier Science Ltd. 保留所有权利。
Recently, the naval industry has continued to develop innovative lightweight structural concepts with the purpose of seeking alternative replacements for conventional plate-beam metallic structures in selected areas of ships. This study investigated the optimum design of metallic corrugated core sandwich panels subjected to blast loads by using a combined algorithm, the Feasible Direction Method (FDM) coupled with the Backtrack Program Method (BPM), in which the corrugation leg, corrugation angle, face sheet thickness, core thickness and corrugation pitch are selected as design variables, and the axial compression, bending and buckling constraints and the side constraints of the manufacturing limitations on the sizes are considered. A corrugated core sandwich panel model in the combatant deckhouse of a naval ship is adopted in the optimum study. The results show that the corrugation leg, corrugation angle and core thickness are most important for the core component, and that the corrugation leg and face sheet thickness are most important for the face sheet component. The significance of the design varibles is discussed in detail. Optimization results may provide a useful reference for designers. (C) 2001 Elsevier Science Ltd. All rights reserved.