作者就赫兹应力和旋转弯曲应力联合作用下的接触疲劳进行实验研究。
Experiments of contact fatigue under the action of combined stresses-Hertsian stress and rotating bending stress were carried out.
旋转弯曲疲劳强度是抗裂纹扩展能力的判据。
The rotating bending fatigue strength is the criterion of resistance to propagation of hot cracks.
家轿后减振器活塞杆在进行旋转弯曲疲劳试验时出现早期断裂。
The piston rod of family sedan's rear snubber fractured duringearlier stage of rotary bending fatigue test.
用旋转弯曲疲劳试验机试验了不同稀土含量对几种结构钢疲劳性能的作用。
The effect of RE on fatigue behaviours of structural steels was investigated with a rotating bending fatigue machine.
本研究进行了渗硼试样的拉伸、多次冲击以及旋转弯曲疲劳试验，并与未渗硼试样进行比较。
In the present study, tensile and repeated impact as well as rotated-bending fatigue tests were carried out.
根据应力场强法，分析了旋转弯曲疲劳极限与扭转疲劳极限之间的关系。
Through the stress field intensity approach, the relationship between the rotary bending fatigue limit and torsion fatigue limit was studied.
本文介绍了用于该试验的径向冲击试验机、扭转疲劳试验机、旋转弯曲疲劳试验机和径向载荷疲劳试验机的结构形式及性能特点。
This paper presents the structural features and characteristics of the radial impact tester, torsional fatigue tester, rotary bending tester and radial load tester used for the tests.
利用旋转弯曲疲劳试验方法研究了三种重载齿轮钢渗碳后的疲劳性能。
Fatigue properties of three case hardening steels for heavy duty gears after carburization were investigated by means of rotating bending fatigue tests.
然后测量涂层和基体的硬度，并通过采用旋转弯曲疲劳试验比较涂层试样与未涂层试样的疲劳强度。
Then hardness of coatings and substrate was measured. By means of bend-rotation fatigue tests, fatigue strength of coating and uncoating specimens was compared after hardening and tempering.
结果表明，该轴断裂是由于轴表面存在焊接缺陷，在旋转弯曲应力作用下产生低应力疲劳开裂。
The results showed that the weld detects on the surface of the axle was the reason to cause low stress fatigue under rotation bending stress which finally lead to the fatigue cracks on the axle.
对两种晶粒尺寸的中碳钢光滑试样进行了旋转弯曲疲劳试验；应用复型技术监测了短裂纹形成与扩展过程，研究了晶粒尺寸对短裂纹行为的影响。
The process of crack initiation and propagation was observed through replication, and the effect of grain size on the behaviour of short fatigue cracks was studied.
井斜对钻具的影响有关理论已经证明，如果井斜角大于某一临界值，在狗腿处旋转钻杆将会引起严重的疲劳破坏。
The related theory that the drilling tool is affected by the inclination of the well had proved the fact: if the Angle of the well is greater than a threshold, there will be se.
计算了飞机机翼加劲板和飞机起落架旋转臂在复杂谱载荷作用下的疲劳裂纹扩展寿命。
The fatigue lives of the stiffened panel of a wing and the landing gear of an aircraft under spectrum loadings also have been predicted.
设计了涡轮盘低循环疲劳试验件，在旋转试验器上进行了涡轮盘的高温低循环疲劳试验。
An experimental turbine disk was designed, and the high temperature LCF test of the rotor was carried out on the spin test rig.
实践证明，研制的新型旋转锻打疲劳下料机能对不同直径的不同材料进行快速精密下料，下料后的形态能完全满足精密塑性加工要求，能直接进行下一步工序加工。
The results show that this new cropping process can crop the various material and diameter bars, and the cropped billets can meet entire requirements for the precision technology of plasticity.
实践证明，研制的新型旋转锻打疲劳下料机能对不同直径的不同材料进行快速精密下料，下料后的形态能完全满足精密塑性加工要求，能直接进行下一步工序加工。
The results show that this new cropping process can crop the various material and diameter bars, and the cropped billets can meet entire requirements for the precision technology of plasticity.
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