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为了研究掘进机在截割过程中截割头载荷谱,通过分析掘进机截割时的机身受力,推算出了截割头三向受力的计算公式,挑选一组矿用“黑匣子”中所记录掘进机截割一整周期的数据,从而可以得到截割头在1个周期内载荷的时域图,将其导入MATLAB雨流计数程序中,得出均值和幅值的频次图。
In order to study the cutting head load spectrum of boring machine during the cutting process, the formula of three-axial force of cutting head is deduced by analyzing the mechanical stress of boring machine cutting, and a group of mining black box "Recorded in a roadheader cutting a full cycle of data, which can be obtained in a period of cutting head load time-domain maps, which will be imported into MATLAB rain flow counting program, the average and amplitude of the frequency Figure