目前,对轴系扭振计算通常有两种方法,即经验公式估算(能量法或放大系数法)和精确计算(分析解法).前者对轻载、小阻尼的强迫振动有较好的近似性.而在大阻尼、强载时误差就较大,必须用分析法进行计算.递推法是一种分析解法,其优点是计算简便,运算时间短,物理概 At present, there are usually two methods for calculating the torsional vibration of the shaft system, namely empirical formula estimation (energy method or amplification factor method) and accurate calculation (analytical solution method). The former has good approximation to forced vibration with light load and small damping However, in the case of large damping and strong load, the error is larger and must be calculated by analytic method.Recursive method is an analytic solution with the advantages of simple calculation, short operation time,