摘要
利用能量法，推导了斜直井眼中钻柱的屈曲临界载荷．在力学模型中，考虑了钻柱自重和井斜的影响，给出了斜直井眼中临界载荷的一般公式，并讨论了两种形式的变形能增量计算方法的差别，所得结果可供工程计算使用．
The finite element method is used for solving contact problem of beam. Some parameters for contact between a beam and rigid foundation are calculated with consideration of shear deformation and without shear deformation, respectively. Numerical results about distributed force on contact length are given. Examples show that the method has a high precision and less calculating time, and can be used in such engineering fields as laying of submarine pipeling and drilling engineering.
出处
《石油大学学报（自然科学版）》
CSCD
1997年第1期49-51,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
"九五"国家项目
