This paper also gives the differential equation of the nonlinear vibration model, and obtains its asymptotic solution by means of singular perturbation methods.
文中给出了这一非线性振动模型的微分方程，并用奇异摄动法求得了渐近解。
In this thesis, several nonconforming finite element methods for plate problems and fourth order elliptic singular perturbation problems are discussed.
在论文中，我们主要讨论了四阶椭圆问题的一些非协调有限元逼近。
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