[1]陈淮,苗同臣..钻井井架屈曲荷载分析的动态评估方法[J].郑州大学学报(工学版),2001,22(01):10-13.[doi:10.3969/j.issn.1671-6833.2001.01.003]
　CHEN Huai,Miao Tongchen.Dynamic evaluation method for buckling load analysis of drilling derrick[J].Journal of Zhengzhou University (Engineering Science),2001,22(01):10-13.[doi:10.3969/j.issn.1671-6833.2001.01.003]

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钻井井架屈曲荷载分析的动态评估方法()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

22卷

期数:

2001年01期

页码:

10-13

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Dynamic evaluation method for buckling load analysis of drilling derrick

作者:

陈淮; 苗同臣.

郑州工业大学土木建筑工程学院,, 郑州工业大学数理力学系,

Author(s):

CHEN Huai; Miao Tongchen

关键词:

承载能力;  井架结构;  动态评估

Keywords:

carrying capacity;  derrick structure;  Dynamic evaluation

DOI:

10.3969/j.issn.1671-6833.2001.01.003

文献标志码:

A

摘要:

提出一种确定石油钻井井架结构屈曲荷载的动态评估方法.其基本思想是：首先利用井架结构的特征值方程建立井架结构的基本固有频率和其所承受竖向轴向力的关系；然后，对井架结构分级加载，计算或实测出井架结构的各级荷载Ni所对应的基本固有频率ω1i，由此可以得出井架结构基本固有频率ω21i与所承受荷载Ni的变化关系曲线，相应于ω21i=0时所对应的轴向力即为所求井架结构屈曲荷载.所建议方法可以与井架结构非破坏性试验相结合来确定井架结构的屈曲荷载，它是石油钻井井架结构承载能力评估的实用方法.

Abstract:

A dynamic evaluation method for determining the buckling load of oil drilling derrick structure is proposed. The basic idea is: firstly, the eigenvalue equation of the derrick structure is used to establish the relationship between the basic natural frequency of the derrick structure and the vertical axial force it bears; Then, the basic natural frequency ω1i corresponding to the various levels of load Ni of the derrick structure is calculated or measured, and the change curve between the basic natural frequency ω21i of the derrick structure and the load Ni can be obtained, and the axial force corresponding to ω21i=0 is the buckling load of the derrick structure. The proposed method can be combined with the non-destructive test of derrick structure to determine the buckling load of derrick structure, which is a practical method for evaluating the bearing capacity of oil drilling derrick structure.

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