Selection of optimum design for conical segmented aluminum tubes as energy absorbers: Application of MULTIMOORA method
作者： Hamidreza Souzangarzadeh , Mohammad Javad Rezvani , Ali Jahan
DOI: 10.1016/J.APM.2017.07.005
关键词: Energy (signal processing) 、 Finite element method 、 Engineering design process 、 Tube (container) 、 Structural engineering 、 Engineering 、 Deformation (meteorology) 、 Aluminium 、 Rank (linear algebra) 、 Conical surface
摘要: Abstract The optimum design for energy absorbers requires considering different criteria. Therefore, the process can benefit from Multiple-Attribute Decision-Making (MADM) approach. Thin-walled structures be particularly employed as in automobiles to dissipate and protect passengers peak crush load caused by severe collisions. present study investigates a thin-walled conical segmented aluminum tube which consists of several circular sections with thicknesses. To achieve design, number tubes were modeled finite element method. Energy absorption, initial load, force efficiency (the ratio mean maximum load), mass structure deformation type conflicting objective functions defined attributes/criteria. numeric logic (NL) technique was applied determine weight various Furthermore, MULTIMOORA method, well-accepted MADM model, utilized obtain tube. variables included wall thickness, lengths sections, taper angle. Drawing comparison between top rank simple revealed that could increase up 23.8% reduce 54% 17.54%, respectively.
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