讨论了初弯曲对钻柱横向非线性振动的影响。
The influence of the initial deflection on the nonlinear lateral free vibration of drill stem is discussed.
并把具有初弯曲的杆柱转化为直杆柱以求其变形。
Transferring the rod having initial bending into the straight rod, its deformation can be com-puted them.
轴向力对具有初弯曲的杆(管)柱变形影响很大。
Axial force has a great effect on deformation of rod or tubing with initial bending stress.
它还可以考虑梁的初始缺陷，如残余应力和初弯曲。
It can also take care of some plate girder defections, such as residual stresses and initial bending.
采用弹性稳定理论，初步探讨了初弯曲和初偏心对杆件动力性能的影响问题。
This paper probes into the influence of initial bending and initial eccentricity on bars' dynamic behavior by using the theory of elastic stability.
算例表明，随着杆件初弯曲的增大，其振幅值随之成比例增大，而其动力稳定性随之降低。
The calculating sample shows that along with the increase of bars' initial bending, the value of their amplitude increases proportionally and their dynamic behavior decreases.
利用能量法推导出斜井眼中具有初弯曲管柱稳定的轴向临界压力计算公式，讨论了初弯曲对轴向临界压力的影响。
By the use of energy method, the formula of axial critical buckling force for a pipe with initial deflection in inclined curved Wells is derived.
水平井套管柱的挠曲变形，不仅受自重引起的横向均布载荷的影响，而且还受轴向力的影响，同时还可能有初弯曲。
The flexual deformation of casing in a horizontal hole is caused not only by the uniform transverse load from dead weight, but also by the axial load, and the existence of initial bent if any.
当初弯曲最大挠度比较大时，对于受侧向力作用的较长管柱，初弯曲对管柱轴向临界压力影响很大，必须加以考虑。
When the initial deflection of a long pipe subjected to lateral loads is large, the effect of the initial deflection on critical buckling force for the pipe must be considered.
分析了凹陷深度、初弯曲、长细比和截面径厚比等参数对杆件极限承载力的影响，讨论了上述参数对荷载-轴向缩短关系的单独影响和综合影响。
The following parameters, dent-depth, initial crook, slenderness ratio and diameter-thickness ratio, are considered and their influence on ultimate bearing capacity is analyzed.
钻柱横向非线性振动的基频随着初弯曲最大挠度的增大而减小，初弯曲对钻柱横向非线性振动基频的影响随钻柱长度的增大而增大，随轴向压力的影响而增加。
The effect of initial deflection on the first frequency increased with either the length of drill stem or the axial compressive force on the drill stem increases.
借助控制微分方程的标准基本解答组，获得梁弯曲问题初参数形式的通解。
Using the normal solutions of the governing differential equation, the general solution of a bending beam is obtained.
提出了考虑剪切变形时深梁弯曲问题的初参数法。
In this paper, initial parameters method for the bending problem of thick beam with shear deformation is presented.
本文将碟形弹簧简化为具有初挠度的圆环形薄板的对称弯曲问题。
In this paper, the study of disc spring is simplified and regarded as the symmetrical bending of circular plate with initial bending deflection.
对轻骨料高强度钢纤维混凝土的抗压强度、初裂强度、弯曲强度、弹性模量和弯曲韧性指数等主要力学指标进行了试验研究。
The flexural strength, first crack strength, modulus of elasticity and flexural toughness of high-strength lightweight fiber-reinforced concrete were investigated.
借助弯曲荷载-挠度全曲线，分析了纤维掺量和类型对韧性指数和初裂荷载的影响。结果表明，钢纤维混凝土的抗弯初裂强度、极限强度和弯曲韧性均随纤维掺量的增大而提高。
Through the load-deflection curves of SFRC, the effects of fiber kinds and fiber content on the first-crack strength and the flexural toughness of SFRC were contrasted with those of concrete.
借助弯曲荷载-挠度全曲线，分析了纤维掺量和类型对韧性指数和初裂荷载的影响。结果表明，钢纤维混凝土的抗弯初裂强度、极限强度和弯曲韧性均随纤维掺量的增大而提高。
Through the load-deflection curves of SFRC, the effects of fiber kinds and fiber content on the first-crack strength and the flexural toughness of SFRC were contrasted with those of concrete.
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