OS1210 クリアランスを考慮した異なるピッチ差を有するボルト・ナットの組み合わせによる締結体の疲労強度について

• 赤石 雄一郎

  Kyushu Institute of Technology

• 干 洋

• 陳 〓

• 王 寰

• 玉崎 英俊

• 野田 尚昭

  九州工業大学工学研究院機械知能工学研究系

• 佐野 義一

• 高瀬 康

  九州工業大学工学機械知能工学科

書誌事項

タイトル別名

• OS1210 Fatigue Strength Analysis for Bolts and Nuts Which Have Slightly Different Pitches Considering Clearance

抄録

The bolts and nuts are widely used in various fields as an important joining machine element. It is known that failures usually happen at the root of the first bolt thread where the maximum stress concentration occurs. In this paper, a special nut whose pitch is slightly larger than the one of the bolt is studied by applying the finite element method. Then it is found that these special bolt and nut reduce the stress concentration at the first root of the bolt thread effectively because the contact condition different from the normal bolt and nut. The reduction of the stress concentration is also confirmed under dynamic bolt axial forces. The experiments results show that the fatigue strength can be improved under slightly different pitches in accordance with the FEM analysis.

収録刊行物

• M&M材料力学カンファレンス

  M&M材料力学カンファレンス 2012 (0), _OS1210-1_-_OS1210-3_, 2012

  一般社団法人 日本機械学会

キーワード

• Fatigue
• Finite
• Element method
• Stress
• Relaxation
• Bolt joint

詳細情報

• CRID: 1390282680848653184
• NII論文ID: 110009937431
• DOI: 10.1299/jsmemm.2012._os1210-1_
• ISSN: 24242845
• Web Site: https://www.jstage.jst.go.jp/article/jsmemm/2012/0/2012__OS1210-1_/_pdf
• 本文言語コード: ja
• データソース種別:
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