Energy distribution analysis and multi-objective optimization of a gradual energy-absorbing structure for subway vehicles

2017 ◽  
Vol 115 ◽  
pp. 255-263 ◽  
Author(s):  
Ping Xu ◽  
Jie Xing ◽  
Shuguang Yao ◽  
Chengxing Yang ◽  
Kai Chen ◽  
...  
Keyword(s):  
Energy Distribution ◽  
Distribution Analysis ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Energy Absorbing

A hybrid multi-objective optimization approach for energy-absorbing structures in train collisions

2019 ◽  
Vol 481 ◽  
pp. 491-506 ◽  
Author(s):  
Honghao Zhang ◽  
Yong Peng ◽  
Lin Hou ◽  
Guangdong Tian ◽  
Zhiwu Li
Keyword(s):  
Optimization Approach ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Energy Absorbing

Coupled thermal–structural analysis and multi-objective optimization of a cutting-type energy-absorbing structure for subway vehicles

2019 ◽  
Vol 141 ◽  
pp. 360-373 ◽  
Author(s):  
Junyan Wang ◽  
Zhaijun Lu ◽  
Mu Zhong ◽  
Tianjun Wang ◽  
Chengming Sun ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Energy Absorbing

Crash performance and multi-objective optimization of a gradual energy-absorbing structure for subway vehicles

2016 ◽  
Vol 107 ◽  
pp. 1-12 ◽  
Author(s):  
Ping Xu ◽  
Chengxing Yang ◽  
Yong Peng ◽  
Shuguang Yao ◽  
Dehong Zhang ◽  
...  
Keyword(s):  
Multi Objective Optimization ◽  
Multi Objective ◽  
Energy Absorbing ◽  
Crash Performance

Experimental, numerical, and multi-objective optimization investigations on the energy absorption features of single- and bi-layer deep-drawn cups

2020 ◽  
pp. 146442072097243
Author(s):  
Mohammad A Ghasemabadian ◽  
Mehran Kadkhodayan ◽  
William Altenhof
Keyword(s):  
Stainless Steel ◽  
Energy Absorption ◽  
Axial Loading ◽  
Total Efficiency ◽  
304L Stainless Steel ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Polynomial Response Surface ◽  
Energy Absorbing ◽  
Absorption Features

In this article, the energy absorption features of single- and bi-layer deep-drawn cups (S- and B-cups, respectively) under a quasi-static axial loading are investigated experimentally and numerically. The S-cups were made of 304L stainless steel and explosively welded B-cups were composed of aluminum and 304L stainless steel layers. A multi-objective optimization was performed on specific energy absorption and initial peak force based on the polynomial response surface method. Furthermore, to compare the energy absorption features of deep-drawn cups, two groups of 304L stainless steel tubes (with the same mass or the same height as the S-cups) were axially compressed. The experimental results indicated that the S-cups experienced total energy absorption and mean crush force approximately 24% and 51% greater than those of tubes with the same mass and thickness, respectively. Furthermore, the total efficiency and specific total efficiency of the S-cups were approximately 0.23 and 1.82 times greater than those of tubes with the same height and thickness. Moreover, the energy absorbing effectiveness factor of B-cups was approximately twice of the S-cup.

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