1) critical rotary number
临界转数
2) minor critical speed
次临界转数
3) critical speed of rotating shaft
轴的临界转数
4) 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
5) 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
6) 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。
补充资料：临界转数
分子式：
CAS号：
性质：高速旋转机械的转子发生共振时的转数。它等于转子的自由振动频率。其频率仅与其刚度和重量有关，故又称固有频率(fundamental frequency)。设计高速转子时必须精确地计算其固有频率，使它远离转子的工作转数，否则在接近固有频率状态运行时会发生共振，使振幅突然增大许多倍，直到机器和厂房发生毁坏性事故。转子的固有频率与轴刚度平方根成正比，与转鼓质量的平方根成反比。
CAS号：
性质：高速旋转机械的转子发生共振时的转数。它等于转子的自由振动频率。其频率仅与其刚度和重量有关，故又称固有频率(fundamental frequency)。设计高速转子时必须精确地计算其固有频率，使它远离转子的工作转数，否则在接近固有频率状态运行时会发生共振，使振幅突然增大许多倍，直到机器和厂房发生毁坏性事故。转子的固有频率与轴刚度平方根成正比，与转鼓质量的平方根成反比。
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参考词条