Body optimization approach of sedan structure for improving small overlap impact rating

Xi  Liu; Rui Liang; Yuanzhi Hu; Chengyue Jiang; Xuebang Tang; Christophe Bastien

doi:10.1080/13588265.2019.1701360

Body optimization approach of sedan structure for improving small overlap impact rating

Xi Liu, Rui Liang, Yuanzhi Hu, Chengyue Jiang, Xuebang Tang, Christophe Bastien

Chongqing University

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

466 Downloads (Pure)

Abstract

Small overlap accidents of sedans often result in severe injuries. In this article, a crashworthiness design method, including engine-room energy management, suspension safety design and passenger compartment enhancement, was evaluated to improve the small overlap rating based on finite element simulation. Longitudinal reinforcement and shotgun redesign techniques were proposed to increase energy-absorption and decrease the impact force that transferred to the passenger compartment. The response surface methodology was utilized to propose the optimal passenger compartment parameters in order to reduce intrusion. The evaluation of the sedan structure performance was conducted by comparing simulated intrusion results with the rating guidelines of the Insurance Institute for Highway Safety (IIHS). The optimal results indicated that the intrusion was decreased by an average of 58.64%, with a minimum percentage of 44.98% around footrest area, and the measurement points for intrusion was upgraded to good. The proposed crashworthiness design approach is effective in vehicle structure optimization for better small overlap impact performance

Original language	English
Pages (from-to)	182-190
Number of pages	9
Journal	International Journal of Crashworthiness
Volume	26
Issue number	2
Early online date	14 Dec 2019
DOIs	https://doi.org/10.1080/13588265.2019.1701360
Publication status	Published - 2021

Bibliographical note

This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Crashworthiness on 14/2/2019, available online: http://www.tandfonline.com/10.1080/13588265.2019.1701360

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

Funder

This article was supported by 2015 Chongqing Foundation and Frontier Research Program Funding Project (cstc2015jcyjA00048) and the Science and Technology Research Program of Chongqing Municipal Education Commission (Grant No. KJQN201901141).

Keywords

sedan body optimization
small overlap impact
finite element model
crashworthiness analysis

Access to Document

10.1080/13588265.2019.1701360

Post-PrintAccepted author manuscript, 1.29 MBLicence: Unspecified

Cite this

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title = "Body optimization approach of sedan structure for improving small overlap impact rating",

abstract = "Small overlap accidents of sedans often result in severe injuries. In this article, a crashworthiness design method, including engine-room energy management, suspension safety design and passenger compartment enhancement, was evaluated to improve the small overlap rating based on finite element simulation. Longitudinal reinforcement and shotgun redesign techniques were proposed to increase energy-absorption and decrease the impact force that transferred to the passenger compartment. The response surface methodology was utilized to propose the optimal passenger compartment parameters in order to reduce intrusion. The evaluation of the sedan structure performance was conducted by comparing simulated intrusion results with the rating guidelines of the Insurance Institute for Highway Safety (IIHS). The optimal results indicated that the intrusion was decreased by an average of 58.64%, with a minimum percentage of 44.98% around footrest area, and the measurement points for intrusion was upgraded to good. The proposed crashworthiness design approach is effective in vehicle structure optimization for better small overlap impact performance",

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year = "2021",

doi = "10.1080/13588265.2019.1701360",

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AU - Liu, Xi

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AU - Jiang, Chengyue

AU - Tang, Xuebang

AU - Bastien, Christophe

N1 - This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Crashworthiness on 14/2/2019, available online: http://www.tandfonline.com/10.1080/13588265.2019.1701360 Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

PY - 2021

Y1 - 2021

N2 - Small overlap accidents of sedans often result in severe injuries. In this article, a crashworthiness design method, including engine-room energy management, suspension safety design and passenger compartment enhancement, was evaluated to improve the small overlap rating based on finite element simulation. Longitudinal reinforcement and shotgun redesign techniques were proposed to increase energy-absorption and decrease the impact force that transferred to the passenger compartment. The response surface methodology was utilized to propose the optimal passenger compartment parameters in order to reduce intrusion. The evaluation of the sedan structure performance was conducted by comparing simulated intrusion results with the rating guidelines of the Insurance Institute for Highway Safety (IIHS). The optimal results indicated that the intrusion was decreased by an average of 58.64%, with a minimum percentage of 44.98% around footrest area, and the measurement points for intrusion was upgraded to good. The proposed crashworthiness design approach is effective in vehicle structure optimization for better small overlap impact performance

AB - Small overlap accidents of sedans often result in severe injuries. In this article, a crashworthiness design method, including engine-room energy management, suspension safety design and passenger compartment enhancement, was evaluated to improve the small overlap rating based on finite element simulation. Longitudinal reinforcement and shotgun redesign techniques were proposed to increase energy-absorption and decrease the impact force that transferred to the passenger compartment. The response surface methodology was utilized to propose the optimal passenger compartment parameters in order to reduce intrusion. The evaluation of the sedan structure performance was conducted by comparing simulated intrusion results with the rating guidelines of the Insurance Institute for Highway Safety (IIHS). The optimal results indicated that the intrusion was decreased by an average of 58.64%, with a minimum percentage of 44.98% around footrest area, and the measurement points for intrusion was upgraded to good. The proposed crashworthiness design approach is effective in vehicle structure optimization for better small overlap impact performance

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ER -

Body optimization approach of sedan structure for improving small overlap impact rating

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Reducing Road Traffic Casualties through Improved Forensic Techniques and Vehicle Design (RoaD)

Christophe Bastien

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Body optimization approach of sedan structure for improving small overlap impact rating

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Reducing Road Traffic Casualties through Improved Forensic Techniques and Vehicle Design (RoaD)

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Christophe Bastien

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