因而拟对其进行磁极改造，以改善发电机定转子之间的槽配合，增大电机气隙、增加阻尼棒截面积。
Therefore, the magnetic pole has to be renovated, so as to improve the slot conjugation, enlarge the air gap of generator set, extend the section area of the damper bar.
数值结果表明，双层多重调谐质量阻尼器(DMTMD)比多重调谐质量阻尼器(MTMD)具有更好的有效性和对频率调谐的鲁棒性。
The results indicate that the DMTMD provides better effectiveness and robustness to the change in the frequency tuning than the multiple tuned mass dampers (MTMD) with equal total mass.
动态仿真分析表明，该最优励磁控制系统能够有效地增加系统的阻尼，提高系统的稳定性，并具有较好的鲁棒性。
By the dynamic simulation analysis, this optimal excitation system can increase the system damping and improve system stability with very good robustness.
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.
仿真结果表明，所设计的UPFC阻尼控制器不仅对单机无穷大系统有很好的系统鲁棒性，对四机两区域系统也有很好的阻尼控制效果。
The result show that the UPFC damping controller designed either had fine and robust effect in single machine infinite bus or four machine two regional systems.
刚度和阻尼保持常量但质量变化形成的MTMD模型能够提供更好的有效性和鲁棒性。
It has been demonstrated that the MTMD with the identical stiffness and damping coefficient but unequal mass provides better effectiveness and higher robustness.
建立了阻尼间隔棒的数学模型，给出了间隔棒的阻抗矩阵和耗能计算公式。
A mathematical model of damping spacer damper is established, then the impedance matrix and energy consuming formulae of spacer dampers are derived.
最后针对该系统由于非线性环节的引入导致的闭环频率和阻尼不确定的特点，设计了鲁棒ei输入成型器来抑制挠性结构的振动。
Finally, EI input shaper is designed for the closed loop system whose frequency and damp has uncertain characteristic to reduce the vibration.
为了确定建筑结构的最优阻尼，本文采用了具有鲁棒性的临界激励法。
In order to get the optimal damper of building structures, in the paper, a robust critical excitation approach is adopted.
研究了带有纯延迟的欠阻尼对象最优PID控制器的参数整定及性能鲁棒性评价问题。
This paper studies optimal tuning of PID controllers and its robust performance evaluation for under-damped plants with time delay.
结果表明，利用递推算法进行转速辨识成本低，可靠性、鲁棒性高；提出的阻尼控制策略有效可行。
The results show that the speed identification with RLS algorithm has low cost and high reliability and robustness, and the damping control strategy proposed is effective and feasible.
动态仿真分析表明，设计出的最优励磁系统能够有效地增加系统的阻尼，提高系统的稳定性，且能够很好地抑制系统的低频振荡，并具有较好的鲁棒性。
Analysis of dynamic simulation shows that this optimal excitation system can increase the system damping, improving stability, with good low-frequency oscillation suppression and robustness.
动态仿真分析表明，设计出的最优励磁系统能够有效地增加系统的阻尼，提高系统的稳定性，且能够很好地抑制系统的低频振荡，并具有较好的鲁棒性。
Analysis of dynamic simulation shows that this optimal excitation system can increase the system damping, improving stability, with good low-frequency oscillation suppression and robustness.
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