自激系统

This phenomenon results in the generation of self-excited vibration of down coiler main drive system.

生产X70(14.7mm×1535mm)管线钢时，因带钢进入地下卷取机瞬间与卷筒发生打滑飞车现象，而导致地下卷取机主传动系统发生强烈的自激振动。

Limit cycle flutter of a two-dimensional airfoil in cubic nonlinear aeroelastic system in incompressible flow is investigated.

引 言 在不可压缩流中的二元机翼是一个典型的自激振动的例子，在该系统中引入非线性项一般会产生如Hopf分岔，极限环颤振[1]，周期倍化及混沌等现象。

The present experimental study investigated the mechanism of the self-exciting thermo-acoustic oscillation and the forced thermo-acoustic oscillation.

通过实验，揭示了热声自激振动与热声强制振动现象发生的条件与机理，研究了热声发动机的关键部件——板叠的形状与材质对系统的起振温度的影响。

The experiment study on self amplified high power klystron is carried out in the microwave system of BFEL.

利用北京自由电子激光装置中的微波系统，进行了大功率速调管自激振荡的实验研究。

Standard switch entirely suitable for millivolt service on self-energized control circuits of gas fired heating installations.

在燃气加热安装系统的自激控制电路中，整个标准开关适用于毫伏电压。

The internal resonance condition plays an important role in the dry-friction induced self-excited vibration.

另外，系统的内共振状态对干摩擦自激振动有重要影响。

The design of aircraft hydraulic system emphasizes particularly on choice of hydraulic component, calculation of fluid self-excitation resonance, avoidance of coupling of pump's ripple frequency and natural frequency of pipeline, and layout of pipeline system, but the design of aircraft structure emphasizes particularly on calculation of stress and intensity.

飞机液压系统的设计侧重于液压元件的选择、流体自激谐振的计算、避免液压泵脉动频率与管道固有频率的耦合及管路系统的布局，而飞机结构设计侧重于应力和强度的计算。

It's discussed that self-excitation vibration mechanism with creeping phenomenon for lower motion parts running speed in NC machine tool feed system.

讨论了数控机床进给系统中因运动部件转动速度较低，因而产生爬行现象的自激振动机理；通过对进给系统建立运动模型、导出振动方程从而对爬行现象进行了理论分析。

Under some conditions, the three forms of vibrations, that is, system vertical vibration, wheelset bend vibration and wheelset torsion vibration, may form a circulative self-induced vibration system in view of the cross excitation.

着重指出，轮轨系统垂向振动、轮对弯曲振动和轮对扭转振动三种振动形式，在一定条件下相互激化，构成一循环自激振动系统。

The initiative and passive methods to decrease the vibration have been studied. The results of decreasing of vibration with the installing of hydraulic liners between the chocks and stand have been researched using the simulation software. The hydraulic liners can decrease or eliminate the vibration effectively.

研究了轧机垂直系统主动减振和被动减振的措施和策略，并运用仿真分析手段，研究了轴承座与机架间采用液压衬板的减振效果，发现采用液压衬板可以很好地抑制轧机垂直系统自激振动的发生。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。