【摘要】 对正交多项式的振动模态参数整体识别方法进行了研究。针对Ｒｉｃｈａｒｄｓｏｎ整体识别方法中确定有理分式的分母多项式系数的错误，提出了基于过渡矩阵的正交多项式整体识别新算法。采用该法可显著提高模态参数的整体识别精度。更多还原

【Abstract】 The global identification algorithm of orthogonal polynomials for vibration modal parameters is studied. A new global identification algorithm based on transition matrix is raised to correct the error of determining the polynomials’ coefficients of the rational fraction’s denominator in the algorithm invented by Richardson. Using the new algorithm, the higher precision of the global identification of modal parameters is obtained.更多还原