| 垫片螺栓法兰连接系统的强度可靠性分析 |
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| 引用本文： | 张庆雅,汪亮. 垫片螺栓法兰连接系统的强度可靠性分析[J]. 机械科学与技术, 2003, 0(Z1) |
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| 作者姓名： | 张庆雅 汪亮 |
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| 作者单位： | 西北工业大学航天工程学院 西安710072(张庆雅)，西北工业大学航天工程学院 西安710072(汪亮) |
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| 摘 要： | 螺栓法兰系统作为一种方便的可拆卸连接 ,在现代化工、航空航天等领域应用非常广泛。这种连接结构不仅要求各连接元件在预紧和操作情况下不发生强度破坏 ,同时还要求满足一定的密封性能。本文将垫片螺栓法兰作为一个整体 ,考虑到法兰旋转、内压对垫片螺栓法兰系统受力与变形的影响 ,按照极限载荷法确定螺栓与法兰环的极限状态 ,对螺栓按拉伸、拉伸与弯曲组合计算模糊可靠度 ,对法兰环轴向按弯曲、径向及轴向按弯曲与薄膜应力组合计算其模糊可靠度。算例表明 ,本文提出的螺栓法兰可靠度计算方法是可行的
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| 关 键 词： | 螺栓 法兰 应力 变形 强度可靠性 |
Analysis of the Strength Reliability of Gasketed-bolted-Flanges System |
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| ZHANG Qing ya,WANG Liang. Analysis of the Strength Reliability of Gasketed-bolted-Flanges System[J]. Mechanical Science and Technology for Aerospace Engineering, 2003, 0(Z1) |
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| Authors: | ZHANG Qing ya WANG Liang |
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| Abstract: | The gasketed bolted flanges system is widely applied in the fields of modern chemical industry, aviation and aerospace because of its convenient disassembly. With regard to this joint, the first requirement is that the strength of its connection components must be ensured in the case of pretighting and operating. In this paper, the joint is treated as a entirety to analyze the stress distribution of flange and bolt considering the influences of the rotation of the flanges and the inner pressure. On the basis of it, the strength reliabilities of flange and bolt are investigated. The example shows the presented methods of calculating flange and bolt strength reliabilities are feasible. |
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| Keywords: | Bolt Flange Stress Deformation Strength Reliability |
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