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- Rolling Contact Fatigue of Rails: What Remains to be Done? 钢轨滚动接触疲劳的进一步研究?
- Of gear foot and contact fatigue strength of gear profile. 齿根弯曲疲劳强度,齿面接触疲劳强度。
- The failure forms of cold work roll including contact fatigue crack, spalling, inclusion crack and wear are discussed. 讨论了冷轧工作辊接触疲劳裂纹、剥落、夹杂物裂纹和磨损等失效形式。
- The paper analysed contact fatigue performances of vacuum degasification steel and common electric steel. 试验并分析了真空脱气钢和普通电炉钢的接触疲劳性能。
- But the study on the rolling contact fatigue failure mechanism of super hard material coati-ngs is in grope. 但是目前对于超硬涂层材料滚动接触疲劳失效机理的研究还处于探索之中。
- Results showed that contact fatigue property of carburized gear samples was better than that of nitrided gear samples. 试验结果表明,渗碳处理试样接触疲劳性能优于调质氮化的试样。
- Design of data measurement and control system was introduced for bearing balls rolling contact fatigue(RCF) life test rig. 介绍了疲劳试验机数据测量系统和控制系统的设计,主要阐述了数据采集方法和控制过程。
- Surface defects in ceramic bearing balls may significantly affect ball strength and reduce rolling contact fatigue lifetime. 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。
- The damage of fretting scar edge was caused by adhesive wear,and the center part of fretting scar was damaged by abrasive wear and contact fatigue. 结果表明:在试验条件下,微动区边缘的损伤特征以粘着磨损为主,而微动区中部则以磨粒磨损和接触疲劳为主。
- The effects of direct-quenching heat-treatment through gas carburizing on the spot contact fatigue life of crosspiece and bowl was mainly studied. 采用气体渗碳直接淬火热处理工艺对力车轴档、轴碗进行接触疲劳寿命的影响试验。
- When the viscosity surpasses a certain marginal value,gearing contact fatigue life decreases with an increment of viscosity. 通过热弹流润滑数值计算,分析了润滑油粘度对齿轮接触疲劳寿命的影响。
- Repeated impact tests on samples of laser cladding is done and microcosmic analysis to the appearance and mechanism of repeated impact contact fatigue damnification is mode. 进行了激光熔覆试件的多冲碰撞试验,并对多冲碰撞接触疲劳损伤的表象和机理进行了微观分析。
- A rolling contact theory is a base of the study on the performances of wheel/rail (W/R), such as rolling contact fatigue, corrugation, W/R noise and derailment. 轮轨蠕滑理论的研究不仅为车辆动力学、轨道动力学的数值仿真提供了轮轨力计算模型,而且是轮轨关系研究的基础。
- The dissertation applies the design method and theory of modern mechanical system to design the new rolling contact fatigue tester for superhard coated materials. 本文应用现代机械系统的设计方法和设计理念,研制了超硬涂层材料滚动接触疲劳试验装置。
- The effect of rheologic behaviour of lubricant on fatigue pit-tings was investigated by means of the data obtained from contact fatigue testusing rollers. 通过对滚子接触疲劳试验数据的分析,探讨了润滑剂的流变行为对疲劳点蚀的影响。
- The results show that the laser hardened overlay posseses high hardness and a little long contact fatigue persistance than that of hardened layer by high frequnce. 并进行了硬度及接触疲劳试验.;试验结果表明:堆焊加激光强化层的硬度高;其接触疲劳性能比原材料高频淬火略有提高;
- As a result of increased carbon content, the abrasion resistance and contact fatigue durability of the test steel is increased, in the mean time, its impact toughness and thermal fatigue resistance is decreased. 结果表明 ,随着碳含量的增加 ,试验钢的耐磨性能和接触疲劳性能提高 ,而冲击韧性及抗冷热疲劳性能降低 ;
- This paper presents the rolling contact fatigue method of evaluating the fatigue strength of substrate/hard film interface. The principle, set-up and applications of the dynamic adhesion tester were introduced. 介绍了滚动接触疲劳法测定硬质薄膜膜基界面疲劳强度的方法 ,以及动态结合强度试验机的原理、结构及其应用。
- He was beaten out with fatigue when he got home. 他回到家里时已是疲惫不堪。
- High strength and high toughness frog of bainitic steel has its superiority of relatively better anti-wear property,longer contact fatigue life,lower cost and better solderability,etc. 阐述了贝氏体钢高强高韧辙叉具有更高的耐磨性和接触疲劳寿命,成本更低廉,可焊性好等优点。