| 含几何缺陷套管抗非均匀外挤力的强度计算 |
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| 引用本文： | 严泽生,覃成锦,高德利,张传友,王惠宾,宗卫兵. 含几何缺陷套管抗非均匀外挤力的强度计算[J]. 钢铁, 2004, 39(11): 33-36 |
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| 作者姓名： | 严泽生 覃成锦 高德利 张传友 王惠宾 宗卫兵 |
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| 作者单位： | 1. 天津钢管有限责任公司技术中心,天津,300301
2. 石油大学石油天然气工程学院,北京,102249 |
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| 摘 要： | 采用有限元法，计算和分析了壁厚不均与椭圆套管在单向均匀和单向椭圆分布外挤力作用下的强度问题。计算结果表明，套管所能承受最大分布力与其壁厚不均度、椭圆度、分布力的类型和方向等因素有关。在允许的制造偏差范围内，壁厚不均度和椭圆度对套管最大分布力值的影响不太严重。在两种分布力中，单向均匀分布力比单向椭圆分布力危害更大。
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| 关 键 词： | 套管抗挤强度 套管缺陷 非均匀力 有限单元法 |
Strength Calculation of Imperfect Casing under Non-uniform External Force |
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| YAN Zesheng ,TAN Chengjin ,GAO Deli ,ZHANG Chuanyou ,WANG Huibin ,ZONG Weibing. Strength Calculation of Imperfect Casing under Non-uniform External Force[J]. Iron & Steel, 2004, 39(11): 33-36 |
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| Authors: | YAN Zesheng TAN Chengjin GAO Deli ZHANG Chuanyou WANG Huibin ZONG Weibing |
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| Affiliation: | YAN Zesheng 1,TAN Chengjin 2,GAO Deli 2,ZHANG Chuanyou 1,WANG Huibin 1,ZONG Weibing 1 |
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| Abstract: | With finite element method, the collapse strength of casing with ovality and eccentricity under unidirectional uniform and ellipse distributive force was calculated and analyzed.The results of calculation show that the maximum value of distributive force the casing can resist depends on eccentricity, ovality, and the mode of distributive force as well as its direction.The effect of eccentricity and ovality within allowable error on maximum value of distributive force is not too severe.In two modes of distributive force the unidirectional uniform distributive force is far more dangerous than the unidirectional ellipse distributive force. |
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| Keywords: | collapse strength imperfect casing non-uniform force finite element method |
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