采用增量变塑性刚度迭代法，求解非线性动力方程。

The incremental variable plastic stiffness iteration method is employed to solve dynamic equations.

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针对多自由度非线性动力方程，提出了一种改进的增维精细积分法。

An improved increment-dimensional precise integration method for the nonlinear dynamic equation with multi-degree-of-freedom was proposed.

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讨论了时标上的一类中立型非线性动力方程的稳定性，得出了该方程一致稳定的充分条件。

In this paper, we study the stability of a class of neutral dynamic equations on time scales, the sufficient conditions of uniform stability of this equation are obtained.

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