控制机构

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

According to the request of adopting advanced technology, the main designing has such contents as below:⑴ Designing the two-fluid nozzle that is based on the theory of air-atomize spraying.⑵ Designing and choosing the type of the axial fan that is used to supply assisted airflow to waft droplets that comes from nozzle.⑶ Designing the swaying outfit that can rotate the spray assembly at a speed and inside a angle in order to satisfy the spray request of different crops, different planting states and improve the uniformity of distribution, the deposition of droplet. Here, we select TYV type reduction gear motor to adjust the swaying speed and use course switch to adjust the swaying angle.⑷ Designing the lift outfit that can adjust the height of the spray assembly to satisfy the request of the crops of different tallness, different spraying range. Here, we select cylinder as the main component that can be used as kickstand and controlled easily.⑸ Designing the switch of the power supply that is put out of the greenhouse in order to prevent worker from poisoning. After the mist sprayer being made, the experiment is made to test the function of the greenhouse mist sprayer fully.

根据采用先进施药技术的要求，本研究的设计内容主要有：⑴采用气液两相流喷雾技术，基于气力雾化原理，设计双流体喷头；⑵采用辅助气流输送雾滴，气流源为风机，对风机进行设计、选型；⑶为满足不同作物、不同栽培情况及提高雾滴分布均匀性、沉积性的施药要求，设计能带动喷射部件在一定角度内、以一定转速的旋转摇摆机构，本研究选用调速电机调节其摇摆速度，并利用反向行程开关调节其摇摆角度；⑷为满足不同高度作物、不同射程的施药要求，设计能调节喷射部件高度的升降机构，这里选用气缸为主要构件，既可以起到整机支架的作用，又可方便进行升降、固定控制；⑸设计行程开关的控制电路以及整机的控制系统。

The results are consistent with the interpretation that positive intangible information tends to trigger institutional herding on the buy side.3. The securities Investment Funds act as momentum traders in bear market while as contrariant traders in bull market. Further analysis reveals that momentum trading by investment funds intensifies stock return momentum but stock price experiences a long-term reversal. It indicates return momentum results from mispricing instead of risk. The securities Investment Funds hamper market efficiency when they act as momentum traders.4 Both momentum trading and herding behavior intensify market anomalies and hamper market efficiency. However, momentum trading or herding behavior is the only one of the many aspects of the institutional investor.

第三，机构投资者的动量交易行为会加重了股票收益惯性，这一结论在分别控制股票规模、账面市值比因素后仍成立，并且机构投资者对股票的动量交易行为越强烈，股票收益的惯性也越明显，说明机构投资者具有影响股票价格的能力；进一步的分析表明，惯性利润在长期均实现反转，但反转的周期和程度受动量交易指标值的影响，股票动量交易程度越高，动量收益反转越强烈，反转周期越短，这表明机构投资者的动量交易行为使股价严重偏离其基础价值，在长期，股票价格不断调整逐渐靠近其基础价值，因此可以说，机构投资者对股票的动量交易行为会加重股票收益惯性和阻碍市场效率。

At least one single roller type multicolor single-side printing device or one perfecting machine device is installed in the machine frame and the power mechanism brings the roller and the ductor mechanism into operation by the drive mechanism.

滚筒式单筒多色印刷装置，含有滚筒，油墨辊机构，定位机架，在一个滚筒周边设置至少有两种不同颜色的油墨辊机构，在滚筒上或滚筒一端面上设有油墨分配机构，所述油墨辊机构彼此之间的传墨次序受油墨分配机构控制。

The physics simulation of large spacecraft Single Gimble Control Moment Gyro attitude control and momentum management system was established, making use of three-axis air-bearing table as spacecraft dynamics simulation object. The mathematics model of SGCMG attitude control and momentum management system was deduced.

引言单框架控制力矩陀螺作为航天器姿态控制的执行机构，具有较大输出力矩的能力，控制特性线性度好，并具有很强的抗干扰性和很快响应速度等优点，在国际上己得到广泛应用，并且已经成为长寿命大型航天器首选的执行机构。

Then the intellectual control technology of vacuum circuit breaker is discussed particularly. As a control object, the bi-stable permanent magnetic actuator is separated into basic principle so as to determine the nature of the whole. The direct-coupled models of magnetic fields for analysis and for calculation are presented. The static and dynamic characteristics of the models and dynamic behavior analysis and matching analysis for the vacuum circuit breaker with bi-stable permanent magnetic actuator are also discussed. For a further study, fuzzy neural network control technology based on synchronized-closing operation of vacuum circuit breaker is analyzed and the research conclusion is used for realizing the synchronized-closing of vacuum circuit breaker in the future.

论文首先分析了永磁机构的结构和工作原理；然后主要针对双稳态永磁机构真空断路器分析了在开断和关合过程中的静态磁场耦合模型、动态分析数学模型和真空断路器的动态特性，并就永磁机构和真空断路器的匹配进行了分析；最后分析了基于双稳态永磁机构真空断路器的同步操作问题，深入研究了同步操作的模糊控制原理和算法，研究结果为最终实现永磁机构真空断路器的同步操作奠定了基础。

Operation system includes steering hardware and clutch operating device. The former controls the direction. The latter meshed or declutched, the power of working parts and driving system is transferred or broken.

操作机构包括转向机构和离合器操纵机构，转向机构控制松土机转向；离合器实现工作部件和行走机构的动力的传递与分离。

The following cases, to go with locator: 1, medium pressure high pressure big time; 2, valve diameter is large Forged Gate, Globe, Check Valves (DN 00); 3, high or low temperature control valve; 4, the action necessary to raise the speed control valve; 5, using standard signal, the operation of non-standard spring when the implementing agency (20 ~ 100KPa spring outside the range); 6, when used for sub-process control; 7, when the valve to achieve the reverse action (air to close each open-type gas conversion); 8, need to change the valve's flow characteristic time (you can change the positioner cam); 9, no spring actuator or piston actuator, the proportion of action to achieve the time; 10, electrical signals to operate pneumatic actuator must Distribution - gas valve positioner.

下列情况下，要配定位器： 1、介质压力高、压差大的时候； 2、调节阀口径大时（DN00）； 3、高温或低温调节阀； 4、需要提高调节阀的动作速度时； 5、用标准信号、操作气动管路截止阀非标准弹簧的执行机构时（20～100KPa以外的弹簧范围）； 6、用于分程控制时； 7、使阀门实现反向动作时（气关式和气开式互相转换）； 8、需要改变阀的流量特性时； 9、无弹簧执行机构或活塞执行机构，要实现比例动作时； 10、用电信号去操作气动执行机构时，必须配电-气阀门定位器。

Based on the virtual prototype technology and simulative software platform Pro/E, the double rotating shaft supporting mechanism of wind tunnel testing model was designed and developed, and the mathematical model of angle control was established.

基于虚拟样机技术及仿真软件平台Pro/E，设计开发了风洞试验模型的双转轴支撑机构，建立了角度控制的数学模型，实现了机构的虚拟样机设计和运动学仿真，获取了被测试验模型运动情况的运动参数曲线，并对双转轴机构实施了干涉的动态检查，为双转轴机构设计方案的交流与评估，以及双转轴机构的制造与应用奠定了基础。

In normal fisher valve repair in general less damage to the implementing agencies fisher valves mainly in fisher sealed valve body and outer sealing maintenance organizations according to Jiangyin Oulei Si understanding fisher control valve sealed agencies and organizations outside the sealed according to the use of fisher control valve selection of different operating conditions change so to do maintenance on the essential Fisher control valve of the valve seal body of the fisher should be very understanding and to the maintenance of the Fisher control valve selection to do with confidence thus it will help Fisher control valve repairs!

在正常fisher阀门维修中，一般fisher阀门执行机构损坏较少，主要集中在fisher阀门内密封机构及外密封机构的维修上，据江阴市欧雷斯了解， fisher控制阀门的内密封机构及外密封机构、根据fisher控制阀的使用工况变化而选型不一，因此要做好Fisher调节阀维修就必需对fisher阀门的密封机构要相当了解，并且要对Fisher调节阀维修的选材做到胸有成竹，由此才有助于Fisher调节阀维修的工作！

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。