CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN
In order to improve the crashworthiness of the collision post structure, the optimal cross-section configuration of the collision post was obtained based on the topology optimization method, and the impacting finite element model of the collision post was established in the explicit dynamics softwar...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.05.17 |
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| author | SHI YueQing QIN RuiXian CHEN BingZhi |
| author_facet | SHI YueQing QIN RuiXian CHEN BingZhi |
| author_sort | SHI YueQing |
| collection | DOAJ |
| description | In order to improve the crashworthiness of the collision post structure, the optimal cross-section configuration of the collision post was obtained based on the topology optimization method, and the impacting finite element model of the collision post was established in the explicit dynamics software Ls-Dyna. Based on the optimal Latin hypercube experimental design method, a polynomial response surface surrogate model of the specific energy absorption and the peak crush force with respect to the wall thickness of the novel multi-cell collision post was established, the multi-objective optimization problem was conducted using the Non-dominated Sorting Genetic Algorithm-Ⅱ and the Pareto front was obtained. The optimization results show that the total energy and specific energy absorption of the novel multi-cell collision post are improved significantly while meeting the structural lightweight requirements compared with the conventional single-cell structure. |
| format | Article |
| id | doaj-art-8f836a308da24e739bb5db9fb29ebcc3 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-8f836a308da24e739bb5db9fb29ebcc32025-01-15T02:39:20ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-01441134114031951287CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAINSHI YueQingQIN RuiXianCHEN BingZhiIn order to improve the crashworthiness of the collision post structure, the optimal cross-section configuration of the collision post was obtained based on the topology optimization method, and the impacting finite element model of the collision post was established in the explicit dynamics software Ls-Dyna. Based on the optimal Latin hypercube experimental design method, a polynomial response surface surrogate model of the specific energy absorption and the peak crush force with respect to the wall thickness of the novel multi-cell collision post was established, the multi-objective optimization problem was conducted using the Non-dominated Sorting Genetic Algorithm-Ⅱ and the Pareto front was obtained. The optimization results show that the total energy and specific energy absorption of the novel multi-cell collision post are improved significantly while meeting the structural lightweight requirements compared with the conventional single-cell structure.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.05.17Railway vehiclesCollision postCrashworthinessTopology optimizationMulti-objective optimization |
| spellingShingle | SHI YueQing QIN RuiXian CHEN BingZhi CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN Jixie qiangdu Railway vehicles Collision post Crashworthiness Topology optimization Multi-objective optimization |
| title | CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN |
| title_full | CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN |
| title_fullStr | CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN |
| title_full_unstemmed | CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN |
| title_short | CRASHWORTHINESS DESIGN AND OPTIMIZATION FOR COLLISION POST OF TRAIN |
| title_sort | crashworthiness design and optimization for collision post of train |
| topic | Railway vehicles Collision post Crashworthiness Topology optimization Multi-objective optimization |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.05.17 |
| work_keys_str_mv | AT shiyueqing crashworthinessdesignandoptimizationforcollisionpostoftrain AT qinruixian crashworthinessdesignandoptimizationforcollisionpostoftrain AT chenbingzhi crashworthinessdesignandoptimizationforcollisionpostoftrain |