进行了齿轮的接触应力及接触疲劳寿命有限元分析。
Gear's contact stress and contact fatigue life was calculated by finite element method (FEM).
测定了试样的接触疲劳寿命、硬度、残余应力和残余奥氏体量。
The rolling contact fatigue life, hardness, residual stresses and the amount of retained austenite of the specimens were measured.
陶瓷轴承球的表面缺陷会严重降低球的强度和滚动接触疲劳寿命。
Surface defects in ceramic bearing balls may significantly affect ball strength and reduce rolling contact fatigue lifetime.
数值计算结果表明：齿轮传动的接触疲劳寿命与齿轮转速戚息相关。
The numerical results show that the gear contact fatigue life is connected with gear rotational velocity.
所以，探讨齿轮转速对齿轮传动接触疲劳寿命影响是必要且可行的。
Therefore, it is necessary and feasible to explore the effect of gear rotational speed on the gear contact fatigue life.
通过实验对比，这种新工艺方法可以显著地提高涂层的接触疲劳寿命。
Through experimental comparison, the new process method can significantly improve the contact fatigue life of the coating layer.
并对残余压应力和残余奥氏体可以提高接触疲劳寿命的原因提出了新的解释。
A new explanation of reason why the rolling contact fatigue life can be prolonged by residual compressive stress and retained austenite was advanced.
利用自制的球-棒疲劳试验机，研究了纳米金刚石粉对钢球接触疲劳寿命的影响。
Effects of nano diamond particles on contact fatigue life of steel ball were evaluated on a self-made ball-rod contact fatigue tester.
通过试验研究了不同碳、铬含量对不锈轴承钢的显微组织、碳化物、硬度和接触疲劳寿命的影响。
This research studies the effect of different carbon and chrome content on the microstructure, carbides, hardness and contact fatigue life of the stainless bearing steel.
航空轴承外圈的疲劳裂纹分析表明，套圈表面的残余压应力分布致使轴承表面接触疲劳寿命降低。
The analysis on fatigue cracks of the outer race of aero-bearing shows that the distribution of residual tensile stress on race surface could reduce its contact fatigue life.
结果表明，含氮量对滚动接触疲劳寿命及平面应变断裂韧性具有很显著的影响，而对耐磨性影响很小。
The results show that nitrogen has remarkable influences on rolling contact fatigue life and plain strain fracture toughness, and little influences on wear resistance.
试验表明：经过表面淬火的铸钢和经过贝氏体淬火的球墨铸铁，其接触疲劳寿命和耐磨性大幅度提高。
The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.
试验结果表明：表面合金涂层能显著提高合金铸铁齿轮的接触疲劳寿命，文中同时分析了合金涂层的组织结构和性能。
The results showed that the alloy coatings can increase significantly the contact fatigue lifetime of alloy cast-iron gears. The microstructure and properties of coatings were also analysed.
本文通过陶瓷球接触疲劳寿命试验，分析了陶瓷球孔隙对陶瓷球接触疲劳寿命的影响，提出了提高陶瓷球接触疲劳寿命的方法。
Effects of pore on the contacting fatigue life of ceramic balls were analyzed by the tests of fatigue life. A method for increasing the fatigue life of ceramic balls is suggested in this paper.
金相组织对钢的接触疲劳寿命有重要作用：板条马氏体组织比片状马氏体组织抗接触疲劳性能好，适量的残余奥氏体可改善钢的抗接触疲劳性能。
The presence of a certain amount of retained austenite improves the resistance to contact fatigue failure. The lath martensite has better resistance than the plate twin martensite.
根据回转窑托轮与轮带的工作条件和疲劳设计理论，阐述以托轮为对象进行回转窑托轮的接触疲劳设计，并对具体工程问题提出了提高托轮接触疲劳寿命的技术措施。
Based on work situation and theory of fatigue design, the paper has touch fatigue design for pads of rotary kiln, and the technique way of prolong the life time for pads of rotary kiln.
进行了接触疲劳、轴承寿命试验。
The experiments on contact fatigue and bearing life have been conducted.
为了考察奥氏体-贝氏体球铁的可靠性和使用寿命，还进行了延性断裂韧度与接触疲劳性能的试验。
The tests for the ductile fracture toughness and the contact fatigue are also carried out for examining serviceability and durability of austenite-bainite ductile cast iron.
根据计算结果，应用齿轮有限寿命设计理论对齿轮疲劳寿命进行计算，得到齿轮的接触应力和疲劳寿命。
According to the calculation results, the fatigue life of gears is calculated by limited life design theory and the contact stress and fatigue life are obtained.
通过对钢轨的修磨可减少由于滚动接触疲劳引起的钢轨损伤，减少钢轨侧面磨损，可延长钢轨的使用寿命0.5 ~1倍。
It may decrease fatigue damage causing by rolling contact and side damage on track and prolong rail service life 0.5 ~ 1 time by means of grinding rail track.
利用接触疲劳磨损理论讨论激光熔覆试样的疲劳磨损寿命问题。
This paper discusses wear life of laser cladding samples with the aid of the theory of contact fatigue wear.
零件表面质量对零件的耐磨性、抗疲劳强度、接触刚度等使用性能和寿命有很大的影响。
It is well known that surface quality of parts has great influence on the operational performance such as wearing quality, figure strength and contact stiffness.
建立了涂层失效模式的判别准则，当指定接触应力和疲劳寿命时可以预测涂层的失效模式，且预测正确率在65%以上；
The failure modes of the coatings can be predicted if the contact stress and the fatigue life are designated. And the prediction accuracy of the failure mode is above 65%.
齿轮的弯曲疲劳强度与接触疲劳强度是判断齿轮使用寿命的重要指标之一。
The intensity of bending fatigue and contact fatigue for gears is one of the important indices (indexes) to judge gear service life.
零件表面质量对零件的耐磨性、抗疲劳强度、抗腐蚀性及接触刚度等使用性能以及寿命、可靠性都有很大的影响。
Surface quality of parts has great influence on the operational performance such as wearing quality, figure strength, corrosion resistance and contact stiffness.
本文以接触疲劳试验中疲劳断齿齿轮为依据，利用有限元应力分析结果以及试验得到的弯曲疲劳寿命曲线，应用msc。
Based on the broken gear teeth in contact fatigue test, bending fatigue life curve was got by applying finite element stress analysis results, MSC.
本文以接触疲劳试验中疲劳断齿齿轮为依据，利用有限元应力分析结果以及试验得到的弯曲疲劳寿命曲线，应用msc。
Based on the broken gear teeth in contact fatigue test, bending fatigue life curve was got by applying finite element stress analysis results, MSC.
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