有限要素解析による管フランジ締結体のボルト締付け指針の検討

書誌事項

タイトル別名
  • Evaluations of Bolt Assembly Guideline of Pipe Flange Connections With Systematic Finite Element Simulation
  • ユウゲン ヨウソ カイセキ ニ ヨル カンフランジ テイケツタイ ノ ボルト シメツケ シシン ノ ケントウ

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説明

In these environmentally sensitive times, bolted flanged joint design that makes the leakage from a joint a design criterion has been investigating. However, achieving uniform bolt preload is difficult when tightening pipe flanges with a number of bolts, even if the appropriate amounts of bolt preload can be calculated following established design rules. A guideline for bolted flange joint assembly has been presented by ASME. However, the guideline needs repeated bolt-up operations to get uniform preloads. In this study, in order to establish a more effective bolt assembly guideline, numerical calculations are systematically executed by using three-dimensional finite element analysis. The analytical objects are pipe flanges of class 150lb and 300lb raised face slip-on welding type specified in JPI with a compressed asbestos sheet gasket inserted. The variations of bolt preload and contact pressure distributions at the gasket bearing surface during bolting up are estimated.

収録刊行物

  • 圧力技術

    圧力技術 41 (3), 106-114, 2003

    一般社団法人 日本高圧力技術協会

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