this paper is based on the study and development of hvd at home and abroad, and fully introduces and analyses the principle, structure and control speed performance of the hydro viscous variable speed drive in theory.

1、

at the end of the thesis, a brief introduction of the electrical control system of hvd and a method of using pid control to carry out speed of rotation of closed loop control are brought forward.

对于HVD的电气控制系统进行了简要介绍，提出了运用PID控制进行转速闭环控制的方法。

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2、

hydro-viscous drive set ( hvd) has been widely applied in many industries for its advantages of efficiently energy-saving, stepless speed regulation, and so on.

滑差离合器因其无级调速和高效节能等性能优势已开始应用于各工业领域。

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3、

the analysis is given in detail to several typical speed control systems for hvd as well as their advantages and disadvantages, the new method is put forward in the end.

详细分析了现有的几种典型的液粘调速离合器转速控制系统及其各自的优缺点，并提出一种完善液粘调速器转速控制系统性能的新方法。

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4、

new type of hydro-viscous variable speed driver ( hvd) and its application in power plant the analysis of several typical speed control systems for hvd

新型液粘调速器及其在电厂中的应用几种典型的液粘调速器转速控制系统的分析

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5、

hydro-viscous drive ( hvd) that has developed since middle 1970s from abroad is a new fluid transmission.

液体粘性传动（Hydro-Viscous Drive，简称HVD）是20世纪70年代中期从国外发展起来的一种新型的流体传动形式。

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6、

the optimization of the friction disc in hvd

HVD中摩擦副的优化设计

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7、

the system composition and working principle of hydro-viscous driver ( hvd) control system are presented briefly in this paper.

本文简要介绍了液体粘性调速离合器控制系统组成及其工作原理。

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8、

research on application of hvd in pumps load

液粘调速装置在泵类负载上的应用研究

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9、

this provides the theoretical foundation for applying hvd in real life engineering situations.

这为HVD装置在工程实际中的开环应用提供了理论依据。

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10、

study on the stability of hvd clutch used in constant pressure water supply system

液体粘性调速离合器在恒压供水系统中的稳定性研究

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11、

it also makes a thermal analysis and hydraulic system design of the hvd.

本文对液体粘性传动进行了热特性分析并设计出相应的液压系统。

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12、

the analysis of several typical speed control systems for hvd

几种典型的液粘调速器转速控制系统的分析

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13、

results of numerical examples illustrate that various values of model parameters represent different market environment and for supervisors the obtained border decision-making provide the foundation to choose corresponding electric power antipollution mechanism, therefore the two mechanisms are manipulable.

算例结果表明，模型中各种参数的不同取值代表了不同的市场环境，由此得到的临界决策曲线为监管者选择相应的电力环保机制提供了依据，因此具有较强的可操作性。

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14、

in order to get over the defect which traditional trade system has neglected environment complication, it is not only necessary but also manipulable to found global green trade system.

为了克服传统贸易制度忽略环境因素的缺陷，建立全球性绿色贸易制度不仅是必要的，而且是可行的。

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15、

conclusion studying four properties of chinese materia medica using 14c-2-deoxy-glucose and autoradiography was manipulable.

结论采用14C-2-脱氧葡萄糖及放射自显影方法研究中药四性具有可操作性；

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16、

science works with problems by making them into manageable, manipulable abstractions.

用科学的方法处理问题就是将这些问题转化成易管理且可操作的抽象概念。

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17、

controls are manipulable, self-contained screen objects through which people interact with digital products.

控件是使用者和数字产品进行交流的屏幕对象，它具有可操作性和自包含性。

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18、

virtual reality technology is a method that represents perceptional and manipulable capability of human.

虚拟现实技术是表达人类知觉能力和操作能力的一种方法。

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19、

in the last section, we composed an innovative real-world telematic application using some of the parlay x web services we introduced in the second section.

在最后一部分，我们使用在第二部分介绍的一些Parlay X Web服务组成了一个创新的实际电信应用程序。

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20、

the system architecture, data model, telematic method, allocation method and algorithm of telephone numbers and lines are given out and discussed.

研究了系统体系结构、数据模型、数据远程访问、配号及配线算法。

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