Firstly, the free vibration with and without nonlinear effects is investigated by wave propagation.

首先, 用波传播法分析了运动梁的线性和非线性自由振动.

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In linear systems an unstable transient grows theoretically infinite amplitude, but nonlinear effects limit this growth.

对于不稳定的线性系统其瞬态过程的幅值在理论上会趋于无穷大, 但是非线性特性会限制其增长.

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