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Comparative Analysis on Traumatic Brain Injury Risk Due to Primary and Secondary Impacts in a Pedestrian Sideswipe Accident
https://repository.lib.tottori-u.ac.jp/records/7098
https://repository.lib.tottori-u.ac.jp/records/70980d63a0e6-5f16-48ca-befc-17100e7b2fad
| 名前 / ファイル | ライセンス | アクション |
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asceasmejruesb4(4)_1.4039464.pdf (297.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2022-07-28 | |||||
| タイトル | ||||||
| タイトル | Comparative Analysis on Traumatic Brain Injury Risk Due to Primary and Secondary Impacts in a Pedestrian Sideswipe Accident | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
田村, 篤敬
× 田村, 篤敬× 小出, 隆夫× Hasegawa, Junji |
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| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Mechanical and Aerospace Engineering, Tottori University | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Intelligent Mechanical Systems, Tokyo Metropolitan University | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Mechanical and Aerospace Engineering, Tottori University | |||||
| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | A series of pedestrian sideswipe impacts were computationally reconstructed; a fast-walking pedestrian was collided laterally with the side of a moving vehicle at 25 or 40 km/h, which resulted in rotating the pedestrian’s body axially. Potential severity of traumatic brain injury (TBI) was assessed using linear and rotational acceleration pulses applied to the head and by measuring intracranial brain tissue deformation. We found that TBI risk due to secondary head strike with the ground can be much greater than that due to primary head strike with the vehicle. Further, an ‘effective’ head mass, meff, was computed based upon the impulse and vertical velocity change involved in the secondary head strike, which mostly exceeded the mass of the adult head-form impactor (4.5 kg) commonly used for a current regulatory impact test for pedestrian safety assessment. Our results demonstrated that an SUV is more aggressive than a sedan due to the differences in frontal shape. Additionally, it was highlighted that a striking vehicle velocity should be lower than 25 km/h at the moment of impact to exclude the potential risk of sustaining TBI, which would be mitigated by actively controlling meff, because meff is closely associated with a rotational acceleration pulse applied to the head involved in the final event of ground contact. | |||||
| 書誌情報 |
ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART B-MECHANICAL ENGINEERING en : ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART B-MECHANICAL ENGINEERING 巻 4, 号 4, 発行日 2018-12 |
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| 出版者 | ||||||
| 出版者 | American Society of Mechanical Engineers | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 23329017 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1115/1.4039464 | |||||
| 権利 | ||||||
| 権利情報 | (C) ASME. This work is made available under the terms of the Creative Commons Attribution 4.0 International license, http://creativecommons.org/licenses/by/4.0/. | |||||
| 情報源 | ||||||
| 関連名称 | Tamura Atsutaka, Hasegawa Junji, Koide Takao. Comparative Analysis on Traumatic Brain Injury Risk Due to Primary and Secondary Impacts in a Pedestrian Sideswipe Accident. ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART B-MECHANICAL E | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1115/1.4039464 | |||||
| 関連名称 | https://doi.org/10.1115/1.4039464 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| EISSN | ||||||
| 値 | 23329025 | |||||
