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本文用计算机模拟的方法研究了在变幅载荷作用下钎杆疲劳寿命的预估问题。研究结果表明,钎钢的热处理条件及其在腐蚀条件下的承载能力,对钎杆的疲劳寿命具有极为重要的影响,估算和实验结果基本相符。
In this paper, the prediction of fatigue life of drill rod under the condition of luffing load is studied by computer simulation method. The results show that the heat treatment conditions of brazing steel and its bearing capacity under corrosive conditions have an extremely important influence on the fatigue life of the drill rod. The estimation and experimental results are basically in line with the results.