If the main frequency is near or equal to self vibration of multiplayer construction, the resonate may be occurred, then multiplayer construction will be severity destroyed.
如主频率低到接近或等于多层建筑的自振频率，则有可能发生共振现象，致使多层建筑遭受严重破坏。
This paper analyzes the modal of Y7125 gear grinder spindle, gets out the main four stages of spindle vibration frequency and deals with the data.
基于有限元方法，对Y7125型磨齿机的砂轮主轴进行模态分析，得出了四阶主振动频率，并对数据进行了处理。
The safety of a main well headframe would be reduced significantly, due to increased loading capacity and higher vibration frequency in a coalmine.
由于煤矿主井井架提升能力的增加，引起井架杆件受力增大，受迫振动频率增大，导致安全性能降低。
Properties of free vibration were analyzed for simplified geared rotor, and the main factors of influence on eigen frequency were also analyzed.
针对齿轮耦合的简单平行转子系统，研究了固有振动的特点，分析了影响固有频率的主要因素。
This frequency range is proximate to main vibration frequency of the traction machine at rated speed, and, according to this, measures against elevator resonance are proposed.
并针对该频率区与曳引机主机额定转速———主振频率接近的特点，提出了防止电梯发生系统共振的措施。
From the calculating results, the main frequency of rail and sleeper lateral vibration is low.
从计算结果可知，轨道结构的横向振动频率较低，且钢轨与轨枕的横向振动主频相接近。
In this paper, the reducer in the main drive system of the rolling mill has been diagnosed successfully by using vibration intensity method and frequency domain analysis method.
利用振动烈度和频域分析方法，对轧机主传动系统减速机进行了故障诊断。
The results of model analysis indicated that the resonance phenomenon would not occur because the slope inherent frequency is well lower than the main frequency of blasting vibration.
模态分析结果表明，边坡的固有频率远低于爆破震动的主频，因此不会产生共振现象。
Floating raft system has a huge disadvantage in depressing low-frequency vibration, which is the main problem of submarine's hiding.
浮筏在低频减振方面存在较大不足，而这恰是主动减振的优势。
Floating raft system has a huge disadvantage in depressing low-frequency vibration, which is the main problem of submarine's hiding.
浮筏在低频减振方面存在较大不足，而这恰是主动减振的优势。
应用推荐