OPTIMIZATION FOR MINIMUM WEIGHT OF ULTRALIGHT STRUCTURES UNDER AXIAL CRUSH LOADING

机译：轴向挤压载荷下超轻结构最小重量的优化

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A methodology was proposed which combined the structural optimization technique with the recent achievements in crush mechanics of thin-walled members with ultralight metal filler. The optimization problems of foam-filled square, hexagonal, double-hat rectangular, double-hat hexagonal sections and double-walled sandwich sections were formulated and solved with crashworthiness and bending stiffness constraints. The proposed methodology requires relatively simple computations and is suitable for early stage design of crash members. The optimization results showed potentials of significant weight saving and volume reduction by utilizing ultralight metal filler. The double-walled sandwich sections appear to be the most weight efficient design with the highest specific energy absorption among all studied cross-sections.

机译：提出了一种将结构优化技术与具有超轻金属填料的薄壁构件的压溃力学方面的最新成果相结合的方法。提出了泡沫填充的正方形，六角形，双帽矩形，双帽六角形截面和双壁夹心截面的优化问题，并在耐撞性和弯曲刚度约束下进行了求解。所提出的方法需要相对简单的计算，并且适合于碰撞构件的早期设计。优化结果表明，利用超轻金属填料可以显着减轻重量并减少体积。在所有研究的横截面中，双层夹层截面似乎是最轻便的设计，具有最高的比能量吸收率。

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来源
《2001 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference Vol.2: 27th Design Automation Conference, 2001, 2001》|2001年|p.307-313|共7页
会议地点 Pittsburgh PA(US);Pittsburgh PA(US);Pittsburgh PA(US);Pittsburgh PA(US)
作者
Weigang Chen;
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作者单位

Impact Crashworthiness Laboratory Massachusetts Institute of Technology 77 Massachusetts Avenue, Room 5-218 Cambridge, MA 02139;

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会议组织
原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
关键词
design optimization; crush mechanics; foam-filled section; double-walled sandwich; crashworthiness;

机译：设计优化；压碎力学泡沫填充部分；双层三明治耐撞性;

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OPTIMIZATION FOR MINIMUM WEIGHT OF ULTRALIGHT STRUCTURES UNDER AXIAL CRUSH LOADING

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