所得结果表明此类自振动系统在自激阈附近的振幅涨落比远离阈值时的涨落大很多。
It is shown that the fluctuation of amplitude at the threshold of oscillation is much greater than that when the system is far from the threshold.
讨论了机床进给系统中因运动部件移动速度较低，因而产生爬行现象的自激振动机理。
This paper discusses the mechanism of self driving vibration in the machine tool feeding system.
分析了转子轴承系统中流体动态力的形成和自激振动的产生与油膜涡动、油膜振荡的故障。
The formation of fluid dynamic force and the occurrence of self-excited vibration and oil film vortex of rotor system are analyzed.
研究了双幅激振自同步椭圆振动系统的同步性条件和同步状态稳定性条件。
In this paper, we discussed the synchronism conditions and the synchronous state stability condition of the self-synchronous ellipse vibrating system with dual amplitudes exciting.
由于曲轴系统装有转动惯量很大的部件，所以曲轴扭转振动的自振频率比较低，往往会在工作转速范围内产生共振。
The crankshaft system installed with component which has enormous moment of inertia that leads to lower frequence of forced torsional vibration for crankshaft.
在现代先进制造加工中，影响数控机床加工效率的因素很多，机床工艺系统的自激振动是其中一个关键因素。
NC machine tool's working efficiency affected by sorts of factors in modern manufacturing engineering, the Vibration Stimulated by itself is a key element.
本文将对一种新的自激振动系统，即带有摆控开关的磁力摆的结构、原理及实验结果作一扼要的介绍和讨论。
This paper briefly introduces the structure and principle of a new system of self-excited oscillations, which is a magnetic pendulum with swing-controlled switch.
本文应用微分方程的定性方法，给出具有间隙动力系统产生自激振动的一个充分条件。
In this paper, the sufficient condition for self-excited oscillation of dynamic systems with gap is given by using qualitative method of differential equations.
讨论了机床进给系统中因运动部件移动速度较低，因而产生爬行现象的自激振动机理。
This paper discusses the mechanism of self driving vibration in the machine tool feeding system. The moving parts with lower speed lead to the crawling phenomenon.
磁悬浮控制力矩陀螺(CMG)中转子一阶弹性模态自激振动是影响磁悬浮高速转子系统稳定性的关键因素之一。
In magnetically suspended control moment gyroscope (CMG), self-excited vibration of high-speed rotor is one of principal factor which effects stability of active magnetic bearing (AMB) system.
讨论了数控机床进给系统中因运动部件转动速度较低，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，并对爬行现象进行了理论分析。
To discuss the self-excitation vibration theory of the NC machine creeping phenomenon for the feed system's parts rotation velocity is a little slower.
根据机械系统动力学建立了双轴自同步平动椭圆振动筛和三轴自同步平动椭圆振动筛的动力学方程。
On the basis of machinery system dynamics, the dynamics equations of balanced elliptical shakers excited by two-shaft self-synchronizing and by three-shaft self-synchronizing are established.
本文采用一个简单近似模拟系统说明油膜自激振动与极限环是密切相关的。
In this paper we employ a simpk approximate simulated system to explain that self-oscillation of oil membrane is in close relationship with limit cycles.
本文采用一个简单近似模拟系统说明油膜自激振动与极限环是密切相关的。
In this paper we employ a simpk approximate simulated system to explain that self-oscillation of oil membrane is in close relationship with limit cycles.
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