• The relation between the contact fatigue life and the residual stresses is more complex.

    残余应力疲劳寿命关系较为复杂

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  • Gear's contact stress and contact fatigue life was calculated by finite element method (FEM).

    进行齿轮接触应力接触疲劳寿命有限元分析。

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  • The numerical results show that the gear contact fatigue life is connected with gear rotational velocity.

    数值计算结果表明齿轮传动的接触疲劳寿命齿轮转速戚息相关。

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  • The rolling contact fatigue life was found to be markedly related the subsurface crack propagation Angle.

    疲劳寿命与次表面裂纹扩展角之间存在着明显的对应关系

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  • Therefore, it is necessary and feasible to explore the effect of gear rotational speed on the gear contact fatigue life.

    所以探讨齿轮转速对齿轮传动接触疲劳寿命影响必要可行

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  • Through experimental comparison, the new process method can significantly improve the contact fatigue life of the coating layer.

    通过实验对比这种工艺方法可以显著地提高涂层接触疲劳寿命

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  • The rolling contact fatigue life, hardness, residual stresses and the amount of retained austenite of the specimens were measured.

    测定试样接触疲劳寿命硬度残余应力残余氏体量。

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  • Effects of nano diamond particles on contact fatigue life of steel ball were evaluated on a self-made ball-rod contact fatigue tester.

    利用自制-棒疲劳试验机,研究了纳米金刚石钢球接触疲劳寿命影响

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  • A new explanation of reason why the rolling contact fatigue life can be prolonged by residual compressive stress and retained austenite was advanced.

    残余应力残余氏体可以提高接触疲劳寿命原因提出了新的解释

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  • The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.

    试验表明:经过表面淬火铸钢经过贝氏体淬火的球墨铸铁,其接触疲劳寿命耐磨性大幅度提高

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  • The results show that nitrogen has remarkable influences on rolling contact fatigue life and plain strain fracture toughness, and little influences on wear resistance.

    结果表明含氮量滚动接触疲劳寿命平面应变断裂韧性具有很显著影响耐磨性影响很小

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  • 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.

    通过试验研究不同含量不锈轴承显微组织碳化物硬度接触疲劳寿命影响

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  • 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.

    航空轴承外圈疲劳裂纹分析表明,套圈表面残余应力分布致使轴承表面接触疲劳寿命降低

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  • 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.

    根据计算结果,应用齿轮有限寿命设计理论齿轮疲劳寿命进行计算,得到齿轮接触应力疲劳寿命。

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  • This paper discusses wear life of laser cladding samples with the aid of the theory of contact fatigue wear.

    利用接触疲劳磨损理论讨论激光熔覆试样疲劳磨损寿命问题。

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  • The experiments on contact fatigue and bearing life have been conducted.

    进行接触疲劳轴承寿命试验

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  • 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.

    通过钢轨修磨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

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  • The intensity of bending fatigue and contact fatigue for gears is one of the important indices (indexes) to judge gear service life.

    齿轮弯曲疲劳强度接触疲劳强度判断齿轮使用寿命的重要指标之一

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  • Based on the broken gear teeth in contact fatigue test, bending fatigue life curve was got by applying finite element stress analysis results, MSC.

    本文接触疲劳试验疲劳齿齿轮为依据,利用有限元应力分析结果以及试验得到弯曲疲劳寿命曲线,应用msc。

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  • Analyses results show that the materials, tension and rigidity of wires, speed of trains, wave speed, and lift forces are primary factors that affect fatigue life of contact wires.

    分析结果表明接触导线线质、张力刚度以及列车运行速度波动传播速度和升力影响导线疲劳可靠性主要因素

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  • 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%.

    建立涂层失效模式判别准则,指定接触应力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;

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  • 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%.

    建立涂层失效模式判别准则,指定接触应力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;

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