The Free-Parameter Perturbation Method together with Spline-Method are applied to study the nonlinear local stability of the dished shallow shell under uniformly distributed loads, i.
将自由参数摄动法与样条函数拟合法结合起来，研究了碟形扁壳在均布载荷作用下的非线性局部稳定问题，即壳体的起始失稳区域，以及该区域与几何参数的关系等问题。
The basic principle of CPSO algorithm is that chaos initialization is adopted to improve individual quality and chaos perturbation is utilized to avoid the search being trapped in local optimum.
该算法的思想是采用混沌初始化进行改善个体质量和利用混沌扰动避免搜索过程陷入局部极值。
Second, some results of local stability for the coexistence solutions are obtained by the perturbation theorem for linear operators and the stability theorem for bifurcation solutions.
然后运用线性算子的扰动理论和分歧解的稳定性理论证明出共存解在适当条件下是稳定的；
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