疲劳强度

The analyzing method and results can be applied to the design and maintenance of spring actuators in circuit breakers.

另外，笔者还对断路器保持弹簧的疲劳强度问题进行了研究，分析结果对于今后断路器弹簧操动机构的设计和维护有一定的参考价值。

Carburized materials possess relatively high surface hardness, good fatigue strength and enough toughness.

材料经渗碳处理后可获得较高的表面硬度、接触疲劳强度而心部仍保持良好的冲击韧性。

encreasing surface hardness is one of the most effective way to enhance the resistance to wear and contact fatigue intensity of high-loaded machine parts.

为了提高承受高负荷机械零件的耐磨性和接触疲劳强度，提高其表面硬度是最有效的方法之一。

Finally, the fatigue strength or fatigue life of the frame is forecasted on the basis of the S-N fatigue life curve. A calculation example shows the validity of this method.

算例表明，采用该预测方法计算的高速列车转向架构架的疲劳强度与现有文献的结果一致。

Fatigue Fract.

徐 灏，疲劳强度。

In this paper, the structural features of corrugated web girders are discussed. The structural details of more possibilities to initiate the fatigue failure are reviewed.

本文阐述了这种结构的构造特点，对疲劳强度的薄弱点进行了评述。

Common fatigue strength reduction factors to account for such things as surface finish can be found in design handbooks.

共同的疲劳强度降低因素占到表面完成这些事可以在设计手册中。

The connection of V reaction rod adopts the assembling technology of small bolt and big quantity to promote anti-fatigue strength and vehicle reliability.

V形反作用杆的连接采用小螺栓、多数量的装配工艺，增强了抗疲劳强度，提升整车可靠性。

All the work pieces from raw material will pass airless shot blast process, which promotes antifatigue strength of workpieces.

钣金车间还拥有清理设备2台，工件从原材料到工件焊接完成后全部进行抛丸处理，提高了设备的抗疲劳强度

To improve the fatigue strength of TC4, Nd: Glass pulse laser was used to shock the surface of TC4. X-ray stress analyzer was used to test the residual stress of the shocked area, and calculation was done by finite element software ABAQUS.

为提高钛合金的疲劳强度，采用Nd： Glass强脉冲激光对TC4钛合金表面进行冲击强化处理，采用X射线应力仪对冲击区的残余应力场进行测试，并采用ABAQUS有限元仿真软件对其残余应力场进行分析计算。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。