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1)  critical speed
临界速度,临界转速
2)  critical rotating speed
临界转速
1.
The critical rotating speed of vacuum plating Cr under the condition of ensuring plating Cr reliably is educed by analyzing the vacuum plating Cr theory of code disc and radial grating and the film forming mechanism.
通过对码盘、圆光栅真空镀铬原理及膜层形成机理的分析,给出膜层厚度和影响其均匀性和致密性的主要因素之间的关系式以及安全成膜时被镀件的临界转速,为真空条件下获得厚度均匀、致密性好的铬膜提供了理论依据。
2.
Critical rotating speed, a basis for determining the rigidity and rotating speed of the main axle, is an important parameter in the design and manufacture of woodwork machine tool.
临界转速是木工机床设计与制造的一个主要参数,为确定木工机床主轴刚度、主轴转速的依据。
3.
Critical rotating speed of vacuum plating Cr was given under the condition of ensuring plating Cr reliably.
给出了动态真空镀铬保证安全成膜时被镀件不应超过的临界转速n临,为动态目标盘动态旋转条件下的可靠镀铬提供了理论依
3)  critical speed
临界转速
1.
Calculating critical speeds of agitating shaft by FEM;
有限元法求解搅拌轴临界转速
2.
Calculation and analysis of critical speeds and mode shaps for textical spindle with special oil-film bearing;
动压轴承锭子临界转速及振型的计算分析
3.
Test and calculation of critical speeds of a rotor;
转子临界转速实验与计算的对比分析
4)  critical rotational speed
临界转速
1.
The mechanical characteristics of KS-Jet spinning device-the dynamic load on bearings, the critical rotational speed of the axle, the position of the centre of mass and the dynamic eqilibrum of the pulley and the rotational cup are analysed and calculated in this paper, which shows the way to guarantee the spinning device′s performance and how to improve the functioning life-span of the device.
对KS型气流纺纱器力学特性—轴承的动态负荷、转轴的临界转速、带轮和转杯的质心位置及动平衡进行了分析计算,指出了保证纺纱器性能和提高运转寿命的途
2.
This paper discusses anew method of caculating critical rotational speed on the basis of studying the transportation rule of long screw drilling sludge and points out that critical rotational speed changesradially along the blade,and it is the function of feed speed.
传统的临界转速确定方法,缺乏完整性和准确性。
3.
Elasticity and plasticity theory were used to develop a computational model of the tool holder to determine the critical rotational speed as a function of the dimensions,interference,material properties,centrifugal force,pull force and cutting force.
临界转速计算模型的建立,可以提高高速旋转刀具夹紧的安全性,并为充分发挥HSK刀柄的高速潜能提供重要的技术依据。
5)  critical speeds
临界转速
1.
Effects of rolling-ball diameter of ceramic bearing on rotor critical speeds
陶瓷轴承滚珠直径对转子临界转速的影响
2.
The critical speeds and critical thrust are analyzed from the model.
在利用实验和现有文献对所建立的模型进行了检验的基础上,对高速微孔钻床主轴系统的临界转速、临界轴向压力进行了分析。
3.
The influences of structural parameters upon critical speeds are also analysed.
本文采用有限元法计算了高空速空心锭子的临界转速和振动形态,分析了结构参数对临界转速的影响,设计并制造了高速空心锭子样件,并对样件进行了模态测试,以验证理论计算的正确性。
6)  critical rotation speed
临界转速
1.
The calculation for rotator s critical rotation speed based on ANSYS;
基于ANSYS的转子临界转速计算
2.
Calculation of effect of dynamic property of oil film on critical rotation speed of rotor in journal bearings;
轴承油膜动特性对转子临界转速的效应计算
3.
The result of numerical analysis indicated that the critical rotation speed of the coupled rotor system includes a critical rotation speed very close with the single rotor and a new critical speed engendered by coupling,.
数值分析结果表明,耦合转子系统的临界转速包括与单转子非常接近的临界转速和耦合形成的新临界转速,而模态除了单转子模态和以某一单转子为主的耦合模态外,还派生出新的耦合模态。
补充资料:临界速度
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性质:(1)当气体作绝热流动通过管子或喷嘴时,在一定的上游压力下,流速随着下游压力的减少而增加。但当管内及喷嘴喉部流速达到在此状态下的压力波传播速度即音速时,无论下游压力如何再降低而流速仍然不变。流动达到此临界情况下的速度称为临界速度。(2)流体流动时从层流转变为湍流的流速称为,临界速度。

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