The formula for calculating the average crack growth rate of 840d wheel web hole is presented.
给出了840d车轮辐板孔平均裂纹扩展速率的计算公式。
The Railway wheel generated fatigue cracks at the wheel web plate holes, which would arouse safe servicing problem.
铁路货车轮在辐板孔处产生疲劳裂纹，影响安全运行。
The fracture surfaces of 840d wheel web with a hole have been investigated and the intervals of fatigue line also have been measured.
对840d车轮辐板孔疲劳断口形貌进行观察并测量疲劳弧线间距。
The wheel web, by virtue of its geometry and material characteristics, is a good emitter of high-frequency sound, and is believed to be the primary source of curve squeal noise.
尺寸和材料的特性导致了轮辋是一个良好的高频声源，轮辋也被认为是曲线尖啸噪声的主要来源。
The wheel web, by virtue of its geometry and material characteristics, is a good emitter of high-frequency sound, and is believed to be the primary source of curve squeal noise.
尺寸和材料的特性导致了轮辋是一个良好的高频声源，轮辋也被认为是曲线尖啸噪声的主要来源。
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