转速

It is revealed that the resonance frequency is provoked and the subharmonic resonance occurs due to the nonlinearity of ball bearings as the speed approaches to twice synchroresonance frequency.

发现由于滚动轴承非线性因素的影响，当转速达到系统共振转速的两倍附近时，激起了系统亚谐共振。

After undergoing a chaotic region, the period number will add one, in the same time, magnitude of the subharmonic response increases in sequence as the rotational speed ratio increases. When the rotational speed is below the critical speed, the chaotic bands resulted directly from a perioddoubling bifurcation occur among the successive orders of superharmonic responses, then they can return directly to periodic motion by a reversed period-doubling bifurcation.

在转速小于临界转速的情况下，在分岔图中各个连续阶亚谐运动的转换区中分别都出现了经由一个倍周期分岔直接导致的混沌频带，后又直接由一个逆倍周期分岔转化为周期一的运动，同时在三个混沌频带之间都出现了幅值突跳的现象。

To make an rpm- drop test, a tachometer is needed

做每分钟转速下降试验时，需要一个转速表。

The tachometer can be used to measure the rotational speed of engine and display time.After experimentation,the r...

该无线转速表能够实现转速测量及时间显示功能，并对其功能和性能进行了测试，实验表明，该系统性能稳定，使用方便、可靠。

When rotating speed of the tie bar is 132r/min, according to coarse or fine lapping processes, the rotating speed of the ring gear should be between 31~54r/min.

当系杆的转速设定为132r/min时，根据粗、精研磨不同的工艺要求，其内齿轮的转速应在31~54r/min调整。

The calculations of torsional vibration of crankshaft systems of 12V240ZJ6E diesel engines were carried out with TVCA programme and I deas software to obtain system natural vibration frequencies, vibration amplitudes of various concentric masses at different rotational speeds, and torques and torsional stress es of various crankshaft sections at different rotational speeds.

运用TVCA程序和Ⅰ deas软件对 12V2 4 0ZJ6E型柴油机轴系的扭转振动进行计算，求出系统的自振频率、各集中质量在不同转速下的振幅和各轴段在不同转速下的扭矩、扭转应力值，对自振频率、自由端振幅和扭转应力最大轴段进行了分析，对轴系的扭转振动情况作出总结与评

In this work,the finite friction force between the refuse and the trommel screen was taken into account,and the relationship between the hoisted angle and the rotary speed was co-related.

从生活垃圾在滚筒筛内的受力分析着手，考虑了物料与滚筒筛筛壁间的摩擦力，其为一有限值，推导出物料的提升角与滚筒筛转速的关系，且物料提升角的大小取决于物料静摩擦角的大小；认为无论滚筒筛的转速多大，物料的最大提升角都是固定不变的。

The high temperature and high rotational speeds at which the gas tubule operates present difficulties in manufacture.

高温和高转速给制造燃气轮机造成很大的困难。燃气轮机工作时的高温与高转速使制造产生了一些困难。

Rev limit formula was put forward after the analysis and calculation of rev limit of measurement turnplate of the pellet full-automatic packaging machine on the base of the theory of mechanics and kinematics.

摘要以力学和运动学为理论基础，对颗粒型全自动包装机计量转盘的极限转速进行了分析计算，并得到了极限转速公式。你知道它的英文吗？

The characteristic of engine working at different mounting way and different environment is analyzed. Selecting pump pressure, speed difference and its variance ratio as input, and current of pump power control and pressure difference control as output, fuzzy control is adopted to improve the power matching and energy saving control method.

分析了在不同安装方式和不同环境下发动机的工作特性，以液压泵的压力，转速差和转速差的变化率作为输入，泵功率控制电流和负载压差控制电流作为输出，采用模糊控制对动力系统的匹配与节能控制方法进行了优化。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。