Up to now, the research on very high cycle fatigue has been a new topic of great interest.
至此，超高周疲劳研究在国际上逐渐成为疲劳研究领域的一个热点。
In this paper, the high cycle fatigue problems are studied by means of the method of damage mechanics.
本文用损伤力学研究金属高周疲劳问题。
It has been shown that the high cycle and the low cycle fatigue strength can be obviously improved by shot peening.
结果指出，喷丸引起表面形变层内的上述变化，能够有效地提高粉末合金高温下的高周和低周疲劳性能。
The high cycle rate of the valves, and the abrasive nature of the quartz powder require an abrasion resistant valve that will last.
由于阀门使用的高频率，以及石英粉末的研磨特性，都要求耐磨性很高的阀门才经受得起。
The fretting fatigue life under complex loads monotonously decreases with the increase of the high cycle load while the low cycle loads keep constant.
复合载荷下，低周幅值不变，增加高周载荷的幅值，微动疲劳寿命随幅值比的增加而降低。
Randomly distributed models of micro-plastic strains were used to calculate the micro-plastic deformation produced at each cycle of the steel under high cycle fatigue test.
采用金属材料微元屈服极限随机分布模型，计算出每次循环产生的微观塑性应变，并与用单调拉伸试验确定的材料真实断裂延性联系起来。
The factor of life scatter is used for depicting the dispersibility of fatigue strength in low cycle fatigue, but in high cycle fatigue is the fatigue strength reduction factor.
低周疲劳常采用寿命分散系数描述结构疲劳强度的固有分散性，而高周疲劳采用疲劳强度减缩系数来描述。
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
WANG K, YAN Z F, WANG W X, et al. Temperature evolution and fatigue properties prediction for high cycle fatigue of magnesium alloy[J]. Journal of materials Engineering, 2014, (1):85-89.
[28]王凯，闫志峰， 王文先， 等。循环载荷作用下镁合金温度演化及高周疲劳性能预测[J]。材料工程，2014，（1）：85-89。
Ultrasonic fatigue tests were carried out on Q235B base metal and welded joints by an ultrasonic fatigue test equipment in order to investigate their super high cycle fatigue properties.
用超声疲劳试验装置对Q235B母材及焊接接头试件进行超声疲劳试验，研究其在超高周疲劳寿命区间的疲劳性能。
From the view of thermodynamics, conclusions can be drawn that the high-low cycle is good to be used to recover waste heat, the parallel cycle is not relatively, and the low-high cycle is not at all.
由此可以得出结论，在回收废热方面，从热力学角度来看，高低型二级热变换器具有很好的应用价值，并联型相对一般，而低高型根本不具有实际应用价值。
It has the advantages of low cost and simple technical process and can fill the depleted reservoirs. It is suitable for sand control in thermal recovery heavy oil Wells in high - cycle huff and puff.
该防砂技术具有费用低、工艺简便、见效快、填补油层亏空等特点，适应稠油油藏热采高周期吞吐油井防砂。
From the standpoint of coupling of non-steady flow with elastic blade vibration, studied was the forced response of blades, which is of major significance for the high-cycle fatigue of blades.
从非定常流动和弹性叶片振动相耦合的角度来研究叶片的强迫响应，对于叶片的高周疲劳具有重要意义。
Influence of rare earth elements on high-cycle fatigue properties of AZ91D alloy was investigated and the fatigue fracture morphology was also analyzed.
研究了稀土元素对AZ 91 D压铸镁合金高周疲劳性能的影响，并对疲劳断口的组织形貌进行了分析。
Influence of rare earth elements on high-cycle fatigue properties of AZ91D alloy was investigated and the fatigue fracture morphology was also analyzed.
研究了稀土元素对AZ 91 D压铸镁合金高周疲劳性能的影响，并对疲劳断口的组织形貌进行了分析。
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