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该文在首创一种新的矩阵相乘技术的基础上,给出一种先进的传递矩阵??多项式法.实例证明,该法在计算转子系统临界转速时,不漏根、计算精度高、计算速度快.“,”An improved method for calculating the critical speed of a flexible rotor bearing system is presented. A new technique is used in multiplying, the element transfer matrics, which allows significant savings in CPU time and high precission. The possibility of missing some eigenvalues is completely eliminated.