| 1. | D . be adapted with two - way throttle valve which makes movement parts for easy adjusti
采用双向节流调速阀，使各运动部件调节更为方便。 |
| 2. | The proportional flow valve control system is the most popular method among the control system of hydraulic elevators
液压电梯比例阀节流调速控制系统是目前液压电梯中应用最广泛的系统。 |
| 3. | According to theoretical analysis and experiments on the throttle control system , the quantitative relationship among the speed of executive element , the flow area of the throttle and the load is determined
本文通过对进油路节流调速系统的理论分析与试验研究，阐明了执行元件的运行速度与节流阀的通流面积以及负载之间的定量关系。 |
| 4. | Abstract : according to theoretical analysis and experiments on the throttle control system , the quantitative relationship among the speed of executive element , the flow area of the throttle and the load is determined
文摘:本文通过对进油路节流调速系统的理论分析与试验研究，阐明了执行元件的运行速度与节流阀的通流面积以及负载之间的定量关系。 |
| 5. | Of fluid power transmission and control , this paper used the method to put the throttling experiment of a hydraulic system into effect . in this virtual experiment , the remote operators can do their experiment through the internet / intranet
在这个虚拟实验台架上，异地的实验者可以通过internet intranet远程访问，完成液压系统节流调速实验，基本上达到了远程教学的要求。 |
| 6. | Taking the throttling experiment as an example , this paper made much detail study on how to construct a complete virtual experiment : ( 1 ) with the aid of vrml , combining strong functions of 3ds max , i designed a 3d model of this throttling experiment
以液压系统节流调速实验为实例，对如何建立网络虚拟实验作了详尽的探讨： 1 )应用vrml技术，并巧妙地结合3dsmax强大功能，对节流调速实验台系统进行了3d模型的设计。 |
| 7. | This thesis also have constructed mathematic model based on the analytic method , which used the load as input and the pressure as output , meanwhile , it have made theoretic analysis of time response . the theoretic analysis was highly agreed with the experimental result
在对出口节流调速系统液压缸两腔压力随负载变化的动态特性的理论分析时，用解析法建立了以负载为输入，压力为输出的数学模型，进行时间响应分析，其理论分析结果与试验结果相吻合。 |
| 8. | Used the metering - out control system in which the hydraulic cylinder was the executive element as research object in this thesis , the experimental research about the effect on the pressure p1 , p2 of the hydraulic cylinder chambers when series - connecting throttle valve or governor valve on the return oil - line under the step load changing have made
本文以单出杆液压缸为执行元件的出口节流调速系统为研究对象，在其回路上分别串接节流阀和调速阀，当负载发生阶跃变化时，对液压缸两腔压力p _ 1 、 p _ 2的影响进行了试验研究。 |
| 9. | Through experimental research , the calculation formula that the pressure highly - adjusted capacity of two cylinder chambers varied with the change of step load and the formula about hydraulic elements main parameter ( rated pressure ) were both made , which had important valuation in selecting the main parameter about this hydraulic system
通过试验研究得出了出口节流调速系统中液压缸两腔压力超调量随负载变化的计算公式以及出口节流调速系统中液压元件主参数(额定压力)计算公式，有利于正确选择系统的元件及主参数。 |
| 10. | Various sensors that are besotted in the 3d world through vrml can effectively sense all kinds of operators " behaviors ; java byte codes that are besotted in the interface between vrml and java through the " script " node can finish difficult tasks . so the alteration can be concluded as follows : operators touch parts of the shelf , and the java byte codes execute the relative function , finally results are reported to the operators . ( 3 ) through detailed studying the working function of the throttling experiment , i constructed a mathematical model of the experiment and simulated the model
Vrml可以在浏览器环境中为3d实验台模型添加多种感知器，能够良好地感知操作者的各种意图；在vrml和java技术的接口中，可以利用java程序代码来完成一些复杂的任务，从而实现了实验的交互：实验者感知实验台的各种仪器，程序完成相应的任务，然后返回相应的结果； 3 )仔细研究了节流调速实验的液压回路原理，对实验过程建立了相关数学模型，进行仿真分析并获得了仿真结果，实现了基于模型驱动方法的虚拟实验； 4 )实验台远程访问的实现。 |
