Some space structures have critical vibration problems owing to their low stiffness and low damping.
针对一类航天器外伸结构的结构振动问题，提出了一种动应变控制方法。
The large amplitude cable vibration often is induced due to low damping and small stiffness of stay cable.
斜拉桥拉索固有阻尼低、刚度小，容易引起大幅振动。
Stayed cable is very vulnerable to vibration as it is with low rigidity, low damping ratio and light weight.
由于斜拉索刚度小、阻尼低、质量轻，极易发生振动。
For the bridge with low damping ratio, the damping ratio will have little influence on the dynamic response of the bridge.
阻尼比较小的桥梁，阻尼比对其动力响应影响较小。
The difficulty of such a structure lies in the controller design because of the natural low damping which induced oscillations.
这种构造地难度在于节制器地设计，由于自然地低阻尼惹起振动。
The invention solves the problems of low damping capability and poor durability of the conventional concrete structure material per se.
本发明解决了现有混凝土结构材料自身阻尼能力低、耐久性差的问题。
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.
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。
Considering the disadvantages of the system, such as strong nonlinearity, low damping, low stiffness and the change of environment, a variable structure controller is designed in the thesis.
针对系统非线性强、阻尼比低、运行条件变化性大等特点，本文提出一种基于变结构控制理论的控制器。
The gas spring is researched and designed to acquired lower resonance frequency and best damping effect, which has low regimens.
研究设计气体弹簧，利用其低刚度获得较低的共振频率，从而获得舒适的运送效果。
Related to the loss of enclosure damping, ported and dual-reflex bandpass designs also exhibit higher distortion levels at very low frequencies than sealed or single-reflex bandpass designs.
从箱体阻尼损失来看，导向孔和双反射带通箱设计在极低频下比密封箱和单反射式带通箱设计有着更大的失真。
Damping Adjust - External beginning stroke rebound, ending stroke rebound, high speed compression, low speed compression.
阻尼调整-中风外部开始反弹，反弹结束行程，高速压缩，低速压缩。
A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.
该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。
In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。
In domestic AC interconnected area power grids the low-frequency oscillations still exist due to insufficient damping.
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。
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.
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。
At the same strain level, the damping ratio of LCES is smaller than soft clay's, and it decreases to a quite low level with high cement content and low EPS content.
在相同的动应变水平下，LCES的阻尼比比粘土要小，提高水泥含量并降低EPS颗粒含量后，LCES的阻尼比显著减小。
The response characteristics of cylinders at low mass-damping are analyzed by the propose model.
根据此模型，分析了低质量-阻尼因子圆柱体的涡激振动响应特性。
Stay cables are susceptible to vibration under wind and traffic loading due to their large flexibility, relatively small mass and very low inherent damping.
由于拉索具有极大的柔性，相对较小的质量，以及非常低的阻尼，其对风荷载及交通荷载引起的振动十分敏感。
Solar arrays are typical flexible space structure with low and closely spaced natural frequencies and light damping.
太阳能帆板是典型的柔性空间结构，其固有频率低且密集，阻尼很小。
According to two units with hydraulic coupling in hydropower plants, the effect of expanded unit connection to low frequency oscillations damping was studied in detail.
研究机组之间存在水力联系的水电站中，两台机组采用扩大单元接线对系统低频振荡阻尼的影响。
Currently, Power System Stabilizers (PSS) and FACTS damping controllers are widely used to suppress the low frequency oscillations and to improve small signal stability.
目前，电力系统主要采用电力系统稳定器(PSS)和FACTS阻尼控制器来抑制低频振荡，提高系统小扰动稳定性。
Model ST Damping Spring Vibration has two advantage, low frequency as steel spring one and large damp as rubber one.
提高约束角度、增大气室容积和降低相对阻尼系数，可以改善空气弹簧隔振器的性能。
Synchronizing torque and damping torque are two concepts widely used in dynamic stability studies and especially important to low-frequency oscillation analysis.
同步转矩及阻尼转矩是两个在动态稳定研究中广泛应用的概念，它们对于电力系统低频振荡分析尤为重要。
Thyristor controlled series compensation (TCSC) possesses important meaning in damping low frequency oscillation in power system.
可控串联补偿(TCSC)对于阻尼电力系统低频振荡具有重要意义。
Said invention features simple construction, light weight, low cost and good damping result.
本发明结构简单、重量轻、成本低、减振效果好。
The traditional passive damping has the advantage of simple structure, reliable operation and low cost. But, it cannot meet the requirements of comfort under complex conditions.
传统的定刚度被动减振具有结构简单、运行可靠、成本低廉的优点，但是不能适应复杂条件下的乘坐舒适性要求。
This paper describes the research being made on outer damping structure method to promote low-noise performance, and presents adoptable improving method for reducing the gear-transmission noise.
本文对齿轮结构上外加阻尼层方面进行了改善低噪声性能的实验研究，为齿轮传动低噪声性能提供了可行的改善措施。
This paper studied in districts the ratio of damping in space of the flow jetting out in large differential high-low bucket.
本文对大差动高低坎挑流的空中消能率分段进行了研究。
In addition ADI has advantages of lower density, low cost, low energy consumption, batter damping capacity.
此外adi还具有重量轻，成本低，能源消耗低，减震性好等特点。
In addition ADI has advantages of lower density, low cost, low energy consumption, batter damping capacity.
此外adi还具有重量轻，成本低，能源消耗低，减震性好等特点。
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