文中给出了钻压和转速对预弯曲动力学防斜打快钻具组合防斜力的影响规律。
Also, it is described the influence of bit pressure and rotate speed on anti-deviation force of the BHA of anti-deviation and fast penetration with pre-bending dynamics.
对该模型施加适当的约束和载荷，通过预前共轭梯度法，计算得到了轴类零件在常见工况-弯曲和扭转载荷作用下的位移、应力、应变等力学特性。
Results of displacement, stress and strain of the shaft under the common loads of bend and torsion are obtained by Pre-condition conjugate gradient method.
方法：将碳纤维预浸织布埋入PM MA不同部位的基托内，测定并比较不同形式的碳纤维织布增强PMMA基托的弯曲强度和弹性模量。
Methods: the carbon -fiber cloth were embedded in diverse positions of the PMMA denture -base. The bending strength and the modulus of elasticity were determined and compared among them.
增加预浸料黏附力可显著提高其侧向弯曲性能，符合理论分析结果。
And the increasing of prepreg tack can significantly improve the lateral bending performance, which all agree with theoretical prediction well.
分析在不同预负荷时弯曲过程中温度、应力、残余应力的分布和弯曲角度对于变形机制的影响。
The influences of bucking mechanism caused by distribution of temperature, stress, residual stress and bucking angle are analyzed with different preloads.
结果表明：随着温度增大、压力和速度减小，预浸料的侧向弯曲性能提高；
The results show that the lateral bending performance of prepreg increases with the increasing of temperature, pressure, and decreasing of speed.
在各弯曲试样得到不同的预应变后，又对其进行反向加载，记录不同预应变下各试样反向加载的弯矩随表面应变的变化曲线。
In these experiments, specimens were bending to produce different pre-strain respectively, and then reverse bending were taken one by one.
在各弯曲试样得到不同的预应变后，又对其进行反向加载，记录不同预应变下各试样反向加载的弯矩随表面应变的变化曲线。
In these experiments, specimens were bending to produce different pre-strain respectively, and then reverse bending were taken one by one.
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