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 system under consideration involves state time delay, nonlinear perturbation and parameter uncertainties.
系统包含状态时滞，非线性扰动和参数不确定性。
The system model contains multiple factors such as time-varying delay, parameter perturbation and nonlinear.
系统模型考虑了时变时滞、参数摄动以及非线性等多重因素。
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