| 不同力学模型下锥颈对焊法兰的有限元应力分析 |
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| 引用本文： | 葛小平,赵正修. 不同力学模型下锥颈对焊法兰的有限元应力分析[J]. 中国石油大学学报(自然科学版), 1992, 0(2) |
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| 作者姓名： | 葛小平 赵正修 |
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| 作者单位： | 齐鲁石化公司炼油厂，石油大学机械系 石油大学 硕士毕业生 |
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| 摘 要： | 应用有限元应力分析法对常用的Pg50 Dgl50的锥颈对焊法兰进行了弹性轴对称、三维弹性及弹塑性应力分析.将法兰、垫片及螺栓作为组合结构进行整体分析研究,并与传统的法兰计算方法——Waters法的结果作了比较.分析了法兰在最大螺栓载荷和内压为5.0MPa下,局部区域进入塑性区的扩展过程.采用国际上普遍应用的线性结构分析程序SAP5和非线性结构程序ADIlqA,在M-240D计算机上进行了有限元计算.
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| 关 键 词： | 法兰 有限元法 应力分析 三维模型 弹塑性 轴向对称 |
FINITE ELEMENT STRESS ANALYSIS OF HUBBED WELDING FLANGE IN DIFFERENT MECHANICAL MODELS |
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| Ge Xiaoping Zhao Zhengxiu. FINITE ELEMENT STRESS ANALYSIS OF HUBBED WELDING FLANGE IN DIFFERENT MECHANICAL MODELS[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1992, 0(2) |
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| Authors: | Ge Xiaoping Zhao Zhengxiu |
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| Affiliation: | Ge Xiaoping Zhao Zhengxiu( Shengli Refinery) (Dept. of Mechanical Engineering) |
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| Abstract: | The commonly used hubbed welding flange Pg50 Dg150 was studied with Finite Element Method (FEM) of stress analysis in accordance with elasto-plastic models. The flange gasket and bolts were considered as a combined structure. The FEM calculation results were compared with those of the Waters method. The development of a plastic region of some parts of the flange under the action of maximum bolt load and maximum internal pressure of 5. 0 MPa was analyzed. The finite element calculations were completed on M-240D computer by using the linear structure program SAP5 and the nonlinear structure program ADINA. |
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| Keywords: | Flange Finite element method Stress analysis Three-imensional models Elasto-plastics Elasto-axisymmetry |
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