For simply and reliably improving the rotor's stability and suppressing the resonant vibration around the first critical speed, a new passive electromagnetic damper was proposed.
为了简单可靠地增加转子系统的稳定性、抑制转子的共振振峰，提出一种新型的被动式电磁阻尼器。
The paper starts from the theory of mechanical vibration, with tie equipment in the reliability design, and obtains a formula of design on critical speed in common use situation.
从机械振动理论出发，用可靠性设计中的联结方程，得出了其在常用工况下按传动轴的临界转速进行可靠性设计的公式。
The paper theoretically analyzes the critical speed of the rotor system of a vertical impact crusher by use of the vibration theory, and the analyzed result is verified by experiments.
采用振动理论，对立式冲击破碎机转子系统临界转速进行理论分析，并进行了实验验证。
By analysing the amplitude of the shaft vibration, this article concludes that when the bolts get loose, it will result in resonance at the second critical speed and serious vibration.
本文利用振动测试记录，具体论证了汽轮机排汽端一侧轴承松动，而导致汽轮机第二临界转速共振和强烈共振。
Thought that the generator rotational speed had achieved nearby two time of critical rotation speeds, the shafting has had the oil film vibration.
认为发电机转速达到两倍临界转速附近，轴系发生了油膜振荡。
When the body length to 6 times the diameter of the above, the rotor speed will close to the critical speed motors, operation of vibration may occur.
当本体长度达到直径的6倍以上时，转子的第二临界速度将接近于电机的运转速度，运行中可能发生较大的振动。
Then the critical rotate speed and vibration shape are changed by changing the supporting stiffness with the characters of flexibility of rotor.
并利用转子支承都具有一定弹性的特点，通过改变转子支承刚度达到调整转子临界转速和振动形态的目的。
Through experiments, the critical wind speed of the vortex-induced vibration is received. And analyzed effect of the railing and the wind attack angle on the vortex-induced vibration.
通过试验得到了涡激振动的临界风速，并分析了栏杆、风攻角对涡激振动的影响。
Through experiments, the critical wind speed of the vortex-induced vibration is received. And analyzed effect of the railing and the wind attack angle on the vortex-induced vibration.
通过试验得到了涡激振动的临界风速，并分析了栏杆、风攻角对涡激振动的影响。
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