给出的数值算例说明了粘弹性系数对稳定性边界的影响。
Numerical examples are presented to show the effects of viscoelastic coefficient on the stability boundaries.
当工作点越过稳定性边界时，低频不稳定的振幅逐渐消失。
As the operating point crosses over the stability boundary, the chug amplitude disappears.
进而采用根轨迹方法就反馈增益和延迟时间进行参数分析，获得系统的颤振稳定性边界。
Furthermore, it performed the parametric analysis in terms of feedback gains and delayed time using the root locus method, thus obtaining the system's flutter stability boundary.
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