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本文用初等函数计算了有冷头轧件所引起的轧机系统的动力响应。文章先对一自由度系统绘出以咬入时间为参数的反应谱,而后把作为多质量系统的轧机动应力化为一自由度系统动力响应的某种组合。计算结果表明:有冷头轧件与无冷头轧件所引起的最大动应力之比一般小于(至少不大于)该两激力的最大值之比。这两个比值之差多在0～10％范围内。
In this paper, the elementary function is used to calculate the dynamic response of rolling mill system caused by cold heading. In this paper, we first plot the response spectrum of a DOF system with bite time as a parameter, and then transform the rolling mill as a multi-mass system into some combination of the dynamic response of a DOF system. The calculated results show that the ratio of the maximum dynamic stress caused by cold heading and non-cold heading is generally less than (at least not greater than) the maximum of these two horsepower. The difference between these two ratios is mostly in the range of 0 to 10%.