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载荷谱是进行构件疲劳强度试验研究和寿命估测的基础。关于钻进状态下钎钢应力波的传播特性,Hawkes和Charavarty曾有报道。本文根据对实际钻进过程钎钢应力波的大量测定,用随机分析方法给出了凿岩过程中钎钢的工作载荷谱。一、实验工作实验装置如图1所示。试验钎钢为55SiMnMo,系直径22mm,长1.8m的中空六
Load spectrum is to carry out component fatigue strength test research and life estimation basis. Hawkes and Charavarty have reported on the propagation characteristics of stress wave of brazing steels when drilling. In this paper, based on a large number of measurements of brazing steel stress waves in the actual drilling process, the working load spectrum of brazing steel during drilling is given by means of stochastic analysis. First, experimental work Experimental device shown in Figure 1. Test brazing steel 55SiMnMo, the Department of diameter 22mm, 1.8m long hollow VI