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首页> 外文会议>Biennial International Pipeline Conference(IPC 2004) vol.3; 20041004-08; Calgary(CA) >ANALYTICAL MODELING OF BOLTED FLANGE JOINTS WITH FULL FACE GASKETS
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ANALYTICAL MODELING OF BOLTED FLANGE JOINTS WITH FULL FACE GASKETS

机译：全端面密封螺栓法兰接头的解析模型

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摘要

Following the low leakage performance of flat face flanges, neither Appendix 2 nor Appendix Y of the ASME code which describes the design rules of flanges, are reliable to assess load changes when full face gaskets are used. The prediction of the tightness of these connections relies very much on the level of precision of the gasket contact stress during operation. However, determining this stress is complex, due to the many geometric and material parameters involved. This paper analyses the behaviour of bolted joints with full face gaskets. It presents an analytical approach to evaluate the operating flange rotation, gasket load and contact stress that may be used for leak prediction. The method is based on the gasket-bolt-flange elastic interaction, including flange rotational flexibility. The proposed model is supported by comparison with numerical FEA of different size flanges.
机译：由于平面法兰的泄漏性能低，因此，描述法兰设计规则的ASME规范的附录2和附录Y均不能可靠地评估使用全端面垫圈时的载荷变化。这些连接的紧密度的预测在很大程度上取决于垫片在操作过程中接触应力的精确度。但是，由于涉及许多几何和材料参数，确定此应力很复杂。本文分析了带全密封垫的螺栓连接的性能。它提供了一种分析方法来评估可用于泄漏预测的工作法兰旋转，垫圈载荷和接触应力。该方法基于垫片-螺栓-法兰的弹性相互作用，包括法兰的旋转柔韧性。通过与不同尺寸法兰的数值有限元分析进行比较，支持了所提出的模型。

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