研究了含弱阻尼和源项的非线性波方程初边值问题。
The initial boundary value problem of the nonlinear wave equation with the weak damping term and a source term was studied.
在我国大区交流互联系统中存在着区域间弱阻尼或负阻尼低频振荡问题。
In domestic AC interconnected area power grids the low-frequency oscillations still exist due to insufficient damping.
本文介绍了电网概况，分析了电网运行中存在的弱阻尼、动态电压支撑能力不足等主要问题。
Here, the general situation of South China power grid is introduced and the main problems in this grid such as weak damping and inadequate dynamic voltage supporting ability, etc.
导出了在位形空间中，求解对应无阻尼问题有等导重特征值的弱阻尼陀螺特征值问题的直接摄动法。
The solution of eigenproblem of slightly damped gyro-systems by the direct perturbation method in configuration space;
论文中给出了控制器之所以会失去鲁棒性，是因为弱阻尼模态增大了互质因子摄动的范数，从而缩小了模型的实际允许摄动范围。
It is indicated that the low damping mode can augment the norm of the coprime factor perturbation and as a result the domain of the actual admissible perturbation is reduced.
它是含有刚度非线性和阻尼非线性的弱非线性系统。
This system is of a small nonlinearity containing stiff nonlinear and damper nonlinear one.
它是含有刚度非线性和阻尼非线性的弱非线性系统。
This system is of a small nonlinearity containing stiff nonlinear and damper nonlinear one.
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