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工程设计学报
工程设计学报  2007, Vol. 14 Issue (1): 48-51    
工程设计理论、方法与技术     
可膨胀筛管外壳膨胀性能的数值分析
 张建乔1, 刘永红1, 吕广忠2, 刘 静1, 魏新芳1, 纪仁杰1
1.中国石油大学(华东) 机电工程学院，山东 东营 257061； 2.胜利油田 地质科学研究院， 山东 东营 257015
Numerical analysis on expandable ability of expandable screen shell
 ZHANG  Jian-Qiao1, LIU  Yong-Hong1, Lv  Guang-Zhong2 , LIU   Jing1, WEI  Xin-Fang1, JI  Ren-Jie1
1.College of Mechanical and Electronic Engineering, China University of Petroleum, Dongying 257061 China;2.Geological Scientific Research Institute, Shengli Oil Farm, Dongying 257015, China
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摘要： 为提高保护外壳的膨胀性能，提出了圆形波纹管形式外壳的设想，并采用非线性有限元方法分析了其膨胀性能。数值计算结果表明，圆形波纹管可以实现较小的应力和较大的位移补偿。外壳的波纹半径与其膨胀性能紧密相关，波纹半径制约着外壳的膨胀均匀度和圆度以及施工难易程度，随着波纹半径的增加，膨胀力和膨胀后的不圆度减小，但膨胀后与套管内壁的接触面积也随之减少，波纹管的合理波纹半径应为8～14 mm。波纹管壁厚对其膨胀力和应力储备系数的影响均不大，但制约了可膨胀筛管的外径和内部构件的尺寸，可膨胀筛管外壳波纹管的合理壁厚为2 mm。
关键词： 可膨胀筛管 圆形波纹管;  非线性有限元法;  机械防砂    
Abstract: To enhance expandable ability of expandable screen shell, a circular bellow shell is designed and its expandable ability is analyzed by non-linear FEA method. Result of numerical calculation indicates that this circular bellow shell has small stress but large displacement compensation. The bellow radius has close relation with its expandable ability. The former restricts its expandable symmetrical degree and its easy-manufacture ability. With the increase of bellow radius, expandable force and non-roundness, as well as contact area between sleeve and shell, decrease. The reasonable bellow radius is 8-14 mm. Moreover, thethickness of shell has little impact on expandable force and stress storage coefficient, but it restricts the outside diameter of expandable screen and the size of inside accessory. The reasonable thickness of shell is 12 mm.
Key words: expandable screen    circular bellow    nonlinear finite element method    mechanicalsand control
出版日期: 2007-02-28
基金资助:

国家重点基础研究发展计划(973计划)资助项目(G1999022511)；石油科技中青年创新基金资助项目(04E7037)
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张建乔
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吕广忠
刘 静
魏新芳
纪仁杰

引用本文:

张建乔, 刘永红, 吕广忠, 刘 静, 魏新芳, 纪仁杰. 可膨胀筛管外壳膨胀性能的数值分析[J]. 工程设计学报, 2007, 14(1): 48-51.

ZHANG Jian-Qiao, LIU Yong-Hong, Lv Guang-Zhong , LIU Jing, WEI Xin-Fang, JI Ren-Jie. Numerical analysis on expandable ability of expandable screen shell[J]. Chinese Journal of Engineering Design, 2007, 14(1): 48-51.

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https://www.zjujournals.com/gcsjxb/CN/    或    https://www.zjujournals.com/gcsjxb/CN/Y2007/V14/I1/48

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