Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/8286
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Keskin, S.A. | - |
dc.contributor.author | Acar, Erdem | - |
dc.contributor.author | Güler, Mehmet Ali | - |
dc.contributor.author | Altın, M. | - |
dc.date.accessioned | 2022-01-15T13:02:25Z | - |
dc.date.available | 2022-01-15T13:02:25Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 1615-147X | - |
dc.identifier.uri | https://doi.org/10.1007/s00158-021-02991-3 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.11851/8286 | - |
dc.description.abstract | In this paper, the effects of various design options for improving the crashworthiness performance of a rectangular crash absorber with diaphragms are explored. These design options include (i) optimal tube and diaphragm dimensioning, (ii) optimal diaphragm placement, and (iii) tapering of the crash absorber. The wall thicknesses of the absorber and the diaphragms, the locations of the diaphragms, and the taper angle are taken as design variables to optimize the crashworthiness performance of the absorber. Before the optimization study, a finite element model is generated and validated with experimental results available in the literature. The effect of each design variable on crashworthiness performance is evaluated by solving a series of design optimization problems, and compared with the baseline design. A successive iterative approach is used in this study, where the optimum design variables obtained from a previous optimization problem are used as the initial design of the next optimization problem. Maximum specific energy absorption (SEA) is sought in these optimization problems. A surrogate-based optimization approach is used, where radial basis functions and response surface models are utilized. Optimal tube and diaphragm dimensioning resulted in 59.2% increase, optimum diaphragm placement led to 7.7% additional increase, and tapering resulted in 2.5% further increase in SEA. Overall, the design changes considered in this paper provided 69.4% increase in SEA. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. | en_US |
dc.description.sponsorship | This paper is written for recognition of the Prof. Raphael (Rafi) T. Haftka?s novel contributions in the field of structural and multidisciplinary design optimization. Rafi was a pioneer in our optimization community who rigorously contributed to the areas of surrogate-based optimization, structural and multidisciplinary optimization, sensitivity analysis, reliability-based design optimization, optimization of laminated composite materials and others. The corresponding author is one of the PhD students of Rafi, and thankful to have had the privilege of collaborating, knowing and being friend to him. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Springer Science and Business Media Deutschland GmbH | en_US |
dc.relation.ispartof | Structural and Multidisciplinary Optimization | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Crash absorber | en_US |
dc.subject | Diaphragms | en_US |
dc.subject | Rail vehicle | en_US |
dc.subject | Specific energy absorption | en_US |
dc.subject | Surrogate-based optimization | en_US |
dc.subject | Crashworthiness | en_US |
dc.subject | Diaphragms | en_US |
dc.subject | Energy absorption | en_US |
dc.subject | Optimization | en_US |
dc.subject | Radial basis function networks | en_US |
dc.subject | Rail motor cars | en_US |
dc.subject | Vehicle performance | en_US |
dc.subject | Crash absorber | en_US |
dc.subject | Design option | en_US |
dc.subject | Design variables | en_US |
dc.subject | Optimization problems | en_US |
dc.subject | Performance | en_US |
dc.subject | Rail vehicles | en_US |
dc.subject | Specific energy absorption | en_US |
dc.subject | Surrogate-based optimization | en_US |
dc.subject | Vehicle crashes | en_US |
dc.subject | Wall thickness | en_US |
dc.subject | Accidents | en_US |
dc.title | Exploring Various Options for Improving Crashworthiness Performance of Rail Vehicle Crash Absorbers With Diaphragms | en_US |
dc.type | Article | en_US |
dc.department | Faculties, Faculty of Engineering, Department of Mechanical Engineering | en_US |
dc.department | Fakülteler, Mühendislik Fakültesi, Makine Mühendisliği Bölümü | tr_TR |
dc.identifier.volume | 64 | en_US |
dc.identifier.issue | 5 | en_US |
dc.identifier.startpage | 3193 | en_US |
dc.identifier.endpage | 3208 | en_US |
dc.identifier.wos | WOS:000673532800001 | en_US |
dc.identifier.scopus | 2-s2.0-85119408047 | en_US |
dc.institutionauthor | Acar, Erdem | - |
dc.identifier.doi | 10.1007/s00158-021-02991-3 | - |
dc.authorscopusid | 57221467790 | - |
dc.authorscopusid | 55308448100 | - |
dc.authorscopusid | 12787816400 | - |
dc.authorscopusid | 55754304700 | - |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.scopusquality | Q1 | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.grantfulltext | none | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | 02.7. Department of Mechanical Engineering | - |
crisitem.author.dept | 02.7. Department of Mechanical Engineering | - |
Appears in Collections: | Makine Mühendisliği Bölümü / Department of Mechanical Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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