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- 宮崎 祐介
- 東京工業大学
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- 森松 美樹
- 東京工業大学
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- 伊藤 翔大
- 東京工業大学
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- Jonathan Farmer
- ラフバラ大学
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- Paul Sherratt
- ラフバラ大学
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- Sean Mitchell
- ラフバラ大学
書誌事項
- タイトル別名
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- Examination of Brain Deformation Behaviour during Baseball Impact by using a Novel Dummy Head and the Finite Element Model
抄録
<p>The purpose of this study was to examine a mechanism of brain damage during baseball impact based on results of baseball impact experiments using a novel dummy head, and simulations using the finite element head model. In the experiment, a baseball helmet was attached to a novel dummy head, simulating human head structures including skin, skull, falx, tentorium, cerebrospinal fluid and brain parts, and a baseball was hit to the helmeted dummy head at a speed of 80MPH. In addition, a finite element head model with the structure similar to the dummy head was constructed, and baseball collision simulation was carried out. Experimental results showed that linear acceleration responses in the brain was greater than the acceleration measured in the skull. Therefore, the finite element models were used to examine and simulate the stress wave propagation in the intracranial space. As the simulation results, pressure wave propagated in the intracranial space, resulting in alternating positive and negative pressures at the skull-brain interface. This phenomenon was different from the brain deformation in other impact conditions such as football or traffic accident cases. Therefore, a new design philosophy of a helmet which prevents the stress wave propagation in the intracranial space would be required to mitigate brain injury due to baseball impact.</p>
収録刊行物
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- シンポジウム: スポーツ・アンド・ヒューマン・ダイナミクス講演論文集
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シンポジウム: スポーツ・アンド・ヒューマン・ダイナミクス講演論文集 2019 (0), C-20-, 2019
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390285300153682688
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- NII論文ID
- 130007836457
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- ISSN
- 24329509
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可