利用已得到的三维轴对称问题的非局部弹性应力的解，采用级数近似展开的方法，求解环状裂纹的边值问题。
Solves the problem of boundary value on an annular crack by using the nonlocal stress solution of an axisymmetric crack problem and approximative method of series expansion.
在此基础上，使用泰勒级数展开算法和二次WLS估计求解非线性定位方程组，以获得更高的节点定位精度。
On the basis of this, both the Taylor series expansion algorithm and two-times WLS estimation are applied to optimize the location estimation.
首先，提出了求解一般动力学方程的李级数方法，并给出具体实施办法，它是泰勒展开方法的一个推广。
Firstly, Lie series method to solve general nonlinear dynamic system is presented, and the implementation method is given in detail. It is an expansion of the Talor series method.
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