Novel material and structural design for large-scale marine protective devices
Novel material and structural design for large-scale marine protective devices
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大型海洋防护装置的新型材料和结构设计
DOI：
10.1016/j.matdes.2014.12.002
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发表时间：
2015-03
影响因子：
8.4
通讯作者：
Youhong Tang
中科院分区：
文献类型：
--
作者：
Wei Lin;Yong Ma;Chengbi Zhao;Youhong Tang
大型防护装置必须承受剧烈的作用力、较大的结构变形、增大的应力应变率效应以及多重耦合效应的影响。在通过仿真评估概念设计的安全性时，本研究考虑的几个关键参数是最大冲击力、冲击器（如船舶）耗散的能量、装置吸收的能量和冲击器行程。在冲击过程中，环梁结构的主要作用是抵抗和缓冲船与桥桩承台之间的冲击力，保证冲击力的大小满足相应的要求。提高抗碰撞性能的方法可以是提高梁截面的强度或用新型纤维增强聚合物层压板代替钢材料。浮箱的主要功能是吸收和传递船舶内部发生的较大塑性变形、损伤或摩擦所产生的动能。通过结构优化或采用新型夹芯板可以提高吸能效果。本研究在概念设计的基础上，提出了结构和材料的优化方案，证明夹芯板构成的防护装置具有最佳的防撞性能。
Large-scale protective devices must endure the impact of severe forces, large structural deformation, the increased stress and strain rate effects, and multiple coupling effects. In evaluation of the safety of conceptual design through simulation, several key parameters considered in this research are maximum impact force, energy dissipated by the impactor (e.g. a ship) and energy absorbed by the device and the impactor stroke. During impact, the main function of the ring beam structure is to resist and buffer the impact force between ship and bridge pile caps, which could guarantee that the magnitude of impact force meets the corresponding requirements. The means of improving anti-collision performance can be to increase the strength of the beam section or to exchange the steel material with novel fiber reinforced polymer laminates. The main function of the buoyancy tank is to absorb and transfer the ship’s kinetic energy through large plastic deformation, damage, or friction occurring within itself. The energy absorption effect can be improved by structure optimization or by the use of new sandwich panels. Structural and material optimization schemes are proposed on the basis of conceptual design in this research, and protective devices constructed of sandwich panels prove to have the best anti-collision performance.
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DOI：
10.1061/(asce)0733-9399(1994)120:3(593
发表时间：
1994-03
期刊：
Journal of Engineering Mechanics-asce
影响因子：
--
作者：
Z. Bažant
通讯作者：
Z. Bažant
影响因子：
4.2
作者：
Zhongming Liu
通讯作者：
Zhongming Liu
影响因子：
1.9
作者：
Bisagni, Chiara
通讯作者：
Bisagni, Chiara
DOI：
--
发表时间：
2003
期刊：
Engineering mechanics
影响因子：
--
作者：
Liu Jian-cheng
通讯作者：
Liu Jian-cheng
DOI：
10.1061/(asce)0733-9399(1987)113:1(89
发表时间：
1987
期刊：
Journal of Engineering Mechanics-asce
影响因子：
--
作者：
Z. Bažant;Ta-Peng Chang
通讯作者：
Z. Bažant;Ta-Peng Chang