書誌事項
- タイトル別名
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- Evaluation of Preload Scatter of Wheel Bolts and Safety Assessment of Large Vehicles
- オオガタシャヨウ ホイールボルト ノ ジクリョク ノ バラツキ ト アンゼンセイ ノ ヒョウカ
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Tire coming-off accidents of large vehicles frequently cause fatal disasters that threaten the safety of civic life. Most accidents were attributed to the fatigue failure of wheel bolts that tighten the rear wheels of large vehicles. Since 2003, a number of guidelines to enhance the joint safety have been issued from the Government and other allied societies and associations. However, a considerable number of accidents are still occurring. In order to achieve a drastic reduction of the accidents, the tightening characteristics of wheel bolts need to be elucidated in greater detail. In this paper, the preload scatter of wheel bolts is comprehensively studied by experiments and FEM. Using a single set of wheel bolted joint, it is shown that a large scatter in bolt preload generates due to its specific geometry. In the next place, simulating the actual tightening operation, eight bolts are successively tightened and the bolt preload scatter among them is quantitatively evaluated. The effect of elastic interaction, which occurs in the tightening process of multiple bolts, is studied by experiments and also analyzed by three-dimensional FEM. Since the scatter of friction coefficient in related threaded fasteners is found to be the primary case for the bolt preload scatter, an improved configuration is proposed by FEM for two kinds of nut loaded surfaces, such as between inner nut and inner wheel and between outer nut and outer wheel.
収録刊行物
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- 日本機械学会論文集A編
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日本機械学会論文集A編 75 (759), 1577-1584, 2009
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
- 1390282679454677632
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- NII論文ID
- 110007482709
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
- http://id.crossref.org/issn/03875008
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- NDL書誌ID
- 10505253
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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
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可