最后用有限单元法研究了齿坎的临界长度。
Finally, the critical length of the key wall is studied by means of FEM.
给出了确定井下液力推进器以下钻具临界长度的两种方法。
Two methods for determining the critical length of the drill tool section below the hydrodynamic propulsor are presented.
提出了地震作用下加筋带的界限配筋率和其临界长度的计算公式。
Formulas about the relative minimal reinforcement volume ratio and the minimal reinforcement length were deduced.
本文分析了降液膜高雷诺数区域换热系数随液膜长度变化趋势，引出临界长度的概念。
A critical length concept is introduced to describe the heat transfer performance of thin film flows with high Reynolds number in this investigation.
通过理论分析和数值计算，得到了临界速度与冲击质量、临界长度及线性强化模量间的关系。
The relationship among critical velocity and impact mass, critical buckling length, hardening modulus is given by using theoretical analysis and numerical computation.
结果表明当电子半径大于一个临界长度时，方程的解表现出良好的性质，不会出现奔离和预加速的现象。
It is shown that when the radius of the electron is greater than a critical length, the behavior of the solution is fine, no run-away and pre-acceleration appears.
结果表明，当桩身波速准确时，峰-峰点反演精度主要由缺陷实际长度与定义的缺陷临界长度的比值决定。
The results indicate that the precision mainly depends on the ratio of the defect length to the critical defect length defined in this paper when the wave velocity in the piles is accurate.
随剪切速率的增加，压力振荡的振幅减小，而滑移速率、临界外推滑移长度及振荡频率均有提高。
As the shear rate rises, the amplitude of pressure oscillation reduces, whereas the slide velocity, critical slide length and the frequency increase.
分别从蠕变裂纹扩展的控制参数，临界裂纹长度及剩余寿命三方面对HK40转化管进行了结构完整性研究。
The structure integrity of HK40 reformer tube is studied in respect of the controlling parameter of creep crack growth, the critical crack length and the residual life.
得出了在不同拉伸速度和边框长度条件下装置处于准静态时的临界剪切角，并且分析了织物试样尺寸大小对准静态范围的影响。
The critical shear Angle of quasi-static state was given under different loading speeds and frame lengths condition, and the influence of specimen size on this shear Angle range is also discussed.
研究发现初始滑移长度对低剪切率下的滑移行为起主要作用，而临界剪切率决定了高剪切率下的边界滑移程度。
It is found that the initial slip length controls the slip behavior at small shear rate, but the critical shear rate controls the boundary slip at high shear rate.
基于上述分析，将对各种稳定性研究技术通过实例进行深层对比，并对作为稳定性分析反问题的临界裂纹长度计算进行了工程实例的验证。
This paper provides reliability analysis based on different stability analysis theory and calculates the critical crack length of an engineering example as a reverse problem to stability analysis.
细观解理断裂应力主要由临界裂纹的长度决定。
The local cleavage fracture stress is mainly determined by the length of the critical microcrack.
研究表明，水平井眼中钻柱所能承受的临界载荷和所使用钻杆的单根长度有密切关系。
The research indicated that the critical compressive force of drill stem in horizontal well is closely related with the length of single drill pipe in use.
在理论模型的基础上，建立了预测临界产量、水锥形态以及优化射孔长度的数学模型。
On the basis of this theoretic model, the critical production rate, the shape of water coning and the optimum perforation intervals could .
进而由此揭示了临界概率和相关长度指数随维数增大而减小的变化规律。
Then, a law is brought forward that critical probability and correlative length exponent values decrease with the increase in the dimensionality of a system.
通过对陶瓷基复合材料应力、临界纤维长度的讨论可知，复合材料的强度应考虑纤维取向和纤维长度。
The critical length of fiber and the stress of composites are discussed in this paper. The direction and length of fiber in the composites affect the strength of composites.
为此，推导了钻具在自重作用下失稳的临界钻压及临界失稳长度公式，以便使公式更符合BHA自身的受力特点，提高计算准确性。
SO, the formulas of BHA's critical load and critical length were deduced and given by the hor to fit in with the BHA's loading features as well as to improve the calculating exactness.
钻杆的单根长度越长，钻柱所能承受的临界载荷越小。
The longer the single drill pipe, the lesser the critical compressive force of drill stem.
对其中临界荷载的选取、有无疲劳裂纹的差别以及裂纹长度和宽度的影响等进行了实验研究和理论分析。
Experimental research and theoretical analysis of critical load selection, difference between specimens with and without fatigue crack, and crack length and width effects were carried out.
基于所得平均粘结强度，推导了临界锚固长度和极限荷载表达式。
The critical anchorage length and ultimate load functions are derived in response to the average bond stress.
分析了弹头长度、弹丸质量和靶板材料参数对临界半锥角的影响。
The effects of nose length, projectile mass, and the mechanic performance of plate material on the plugging failure were analyzed.
在理论模型的基础上，建立了预测临界产量、水锥形态以及优化射孔长度的数学模型。
On the basis of this theoretic model, the critical production rate, the shape of water coning and the optimum perforation intervals could be calculated by the corresponding mathematical model.
当本体长度达到直径的6倍以上时，转子的第二临界速度将接近于电机的运转速度，运行中可能发生较大的振动。
When the body length to 6 times the diameter of the above, the rotor speed will close to the critical speed motors, operation of vibration may occur.
结果表明，对于等效长度直杆，动力失稳临界压力要远大于静力失稳的临界压力。
The result indicates that the critical load of dynamic instability is far more than that of static instability with regard to the equivalent length bars.
得到了非线性系数以及特征长度和预倾角的关系，并且给出了强非局域性的非线性薛定谔方程，最终得到了单孤子和临界功率的解析解。
Then the Schrdinger-type nonlinear equation in strong nonlocality was given and from the equation the analytical expressions of the single soliton and the critical power .
在实际检案中，根据瘢痕长度鉴定损伤程度，若瘢痕的长度处于临界值时就很可能引起双方当事人的争议。
If the scar length lies at critical data in the criterion between two levels, it should leads to disagreement.
当地层较软时，弹性约束时管道中的最大应力比固定端约束的要大，而临界悬空长度相差不多。
When the sea soil layer is, softer, the greatest stress for elastic constraints is larger than that for fixed one. The difference in critical length of hanging segment is not much.
改进后大大缩短了轴的长度，使轴的临界转速远在运行转速之上，泵由两个密封改为一个密封。
The modification resulted in a much shorter shaft with a critical speed well above the running speed, and a pump with only one instead of two seals.
改进后大大缩短了轴的长度，使轴的临界转速远在运行转速之上，泵由两个密封改为一个密封。
The modification resulted in a much shorter shaft with a critical speed well above the running speed, and a pump with only one instead of two seals.
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