转速

It possesses both the precise character of PID controller and the flexible advantage of fuzzy controller, and can guarantee that the regulation system has good dynamic and static quality, meanwhile reduce overshort.

该模糊控制器是一种智能制器，应用到异步电机转速控制系统中，使系统取得良好的响应；并能有效地减少系统超调量。

The bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. The bifurcation diagrams, maximum Lyapunov exponent diagrams, Poincaré maps, phase plane portraits, trajectories of journal center, time-history curve, amplitude spectra diagrams of the rotor motion are used. The convert and evolution course of periodical response, quasi-periodical response, double-periodical bifurcation, chaos of the system response is analyzed.(3). It is deduced that the general differential equation of bending-torsional-pendular coupling vibration about rotor with the gyroscopic moment. On the basis of this equation, the general differential equations of coupled bending, torsional and pendular nonlinear vibration about rotor with unbalance character and rubbing character are deduced.

2建立了具有非线性刚度的转子系统在非稳态非线性油膜力作用下的径向碰摩动力学微分方程，并应用含高阶余项的非线性动力方程的线性化数值法研究了此类系统响应的复杂动力学行为，利用转子响应的分岔图、最大Lyapunov指数曲线、Poincaré截面映射、时域波形、相轨线、轴心轨迹、幅值谱等图形分析了系统响应的周期运动、拟周期运动、倍周期分岔、混沌等运动形式的转化与演变过程，重点研究了非线性刚度、转子转速、偏心质量等系统参数对碰摩故障转子系统的分岔和混沌行为的影响。

It make the control-driven system work well in a application of peristaltic pump control-driven system.

0引言在基于单片机的步进电机控制系统中，电机转速的平稳性是驱动控制的主要任务[1]。

On principle of system identification theory, this paper uses 2JZ-GE petrolic computer experimentation system to get the required idle rotate speed data.

本文根据系统辨识理论，结合使用2JZ-GE型汽油机微机试验教学系统测得所需发动机怠速转速数据。

Normal rotor rpm 233, severe vibration, and though positive control never lost, stick force and phugoid instability worsened beyond 30km/h forward speed, severely limiting practical value of EG.

正常转子转速233，剧烈震动，阳性对照，虽然从来没有丢失，粘力和phugoid不稳定恶化超出30公里/小时的速度向前，严重限制了乙二醇的实用价值。

The optimal cultural conditions for producing phytotoxin were temperature 25℃, pH 6.5, cultured period 9-11d, enough darkness and dissolved O2, rotating speed. Crude toxin was obtained through large scale fermentation.

对培养基条件进行了筛选，确定了有利于该菌产毒的温度为25℃、pH值为6.5、培养时间为9～12天、足够的黑暗以及溶氧、转速等培养条件。

The antiviral activity of five different color callus lines on TMV,pind also were proved better than the others.

在液体悬浮培养中，摇床转速以 120 转砌in， 100ml巧的装量，30％为接种量为宜。

Results By using two-phase solvent systems composed of petroleum ether-ethylacetate-methanol-water (22:25:23:17) at the flow rate of 2.0 mL/min, with rotating speed of 800 r/min, and at temperature of 25℃, the yield of d1-tetrahydropalmatine and of protopine purified from the total alkaloids being 16.9% and 14.7%, with purity of 99.3% and 98.8% respectively can be reached.

结果 石油醚－乙酸乙酯－甲醇－水(22：25：23：17)为溶剂体系，流速为2.0 mL/min，仪器转速800 r/min，温度25℃，从延胡索总碱中可一步纯化得到原阿片碱和延胡索乙素，得率分别为16.9%和14.7%，纯度分别为99.3%和98.8%。

Pyrology; Compressor; Volumetric efficiency; Variable speed; R134a; R22

热工学；压缩机；容积效率；变转速； R134a； R22

According to Raser Technologies, the SUV will make use of their E-REV (Extended-Range Electric Vehicle) powertrain and will be able to drive up to 40 miles per day on pure electricity alone.

根据Raser技术，该车将利用其电子商务转速的动力，并能够驱动多达40英里每天仅纯电力。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐