对于轴向阶梯载荷下圆柱壳的非轴对称动力屈曲，将临界应力和屈曲惯性指数作为双特征参数求解。
Critical stress and inertial exponent are treated as two characteristic parameters for the asymmetric dynamic buckling of cylindrical shells under axial step loading.
基于传统的阶梯式均匀传输线逼近模型，对非均匀传输线进行分段指数逼近。
Based on the conventional ladder model, the exponential model is adopted to approach the nonuniform transmission lines.
指数型间断函数具有在数学上的便于积分和求导的优点，且比阶梯间断函数更能反映实际破裂后的变形情况。
That discontinuous function is not only convenient for integral and derivative, but also can be better reflect the displacement character after crack than heaviside function.
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