resonance oscillation

A General Theory of the Threshold Condition of Double Resonance Parametric Oscillation

双谐振参量振荡阈值条件的一般理论

This paper deals with the threshold condition of double resonance parametric oscillation when the absorption coefficient of the signal light is different from that of the idling light.

在信号光和闲置光吸收系数不同的情况下对双谐振参量振荡阈值条件进行了分析。

Conditions and characteristics of resonance produced by linear forced damped oscillation

线性受迫阻尼振动发生共振的条件及特征

When the elasticity deformation of the mechanical system becomes larger, there is not much difference between the resonance frequency and the cutoff frequency, even gets into the band, it might cause the system self-excitation and oscillation.

当机械系统的弹性变形较大时，其谐振频率与截止频率很接近，甚至落入带宽中，引起系统的自激振荡。

By analyzing the grid side disturbance to force unit resonance theory, we found the method to restrain the resonance; and analysis the reason why the grid side disturbance can cause the boiler output oscillation.

本文通过分析电网侧扰动引起的机组强迫共振的原因，提出了共振抑制策略；并分析了电网侧扰动引起锅炉出力超低频振荡的原因。