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| 椭圆形人孔强度和刚度的有限元分析 | |
| 引用本文： | 甄志强,龙华,王彩虹.椭圆形人孔强度和刚度的有限元分析[J].机械,2009,36(4):28-30. |
| 作者姓名： | 甄志强 龙华 王彩虹 |
| 作者单位： | 1. 徐州锻压机床厂,江苏,徐州,221116 2. 武汉五环工程公司,湖北,武汉,430000 3. 徐州旗山煤矿,江苏,徐州,221132 |
| 摘 要： | 有限元分析显示：椭圆形人孔的各个零件中，强度和刚度最薄弱的零件是法兰；而且椭圆法兰短轴越小，法兰密封面的翘曲程度越严重。法兰盖的强度和刚度问题较小，而且宽度缩小到一定程度，短轴方向的刚度会大幅增强，反而削弱了这种翘曲作用。因此，椭圆形人孔的首要失效形式是法兰密封面刚度失效，其次是强度失效。 |
| 关 键 词： | 压力容器 椭圆形人孔 椭圆形法兰 有限元分析 |
Finite element analysis about the intensity and the stiffness of the elliptical manhole |
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| ZHEN Zhi-qiang,LONG Hua,WANG Cai-hong.Finite element analysis about the intensity and the stiffness of the elliptical manhole[J].Machinery,2009,36(4):28-30. | |
| Authors: | ZHEN Zhi-qiang LONG Hua WANG Cai-hong |
| Affiliation: | 1.Xuzhou Metal-forming Machine Works;Xuzhou 221116;China;2.Wuhan Wuhuan Engineering Company;Wuhan 430000;3.Xuzhou Qishan Coal Mine;Xuzhou 221132;China |
| Abstract: | The finite element analysis shows that the weakest part in intensity and stiffness is the flange among the parts of the elliptical manhole;the shorter the minor axis of the elliptical flange is,the more serious the degree of distortion is. The intensity and stiffness problem of the blind flange is small;furthermore,if its width shrinks to some extent,its stiffness will increase greatly and reduce the warping effect. The first failure mode of the elliptical manhole is the stiffness failure of the flange's se... |
| Keywords: | pressure vessel elliptical manhole elliptical flange finite element analysis |
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