| 1. | Design and implementation of hydraulic experiment computer aided test system 系统的设计与实现 |
| 2. | Hydraulic experiments on long water supply pipelines connected to overflow weirs 长输水管道尾部保水堰的水力特性试验研究 |
| 3. | Therefore , a water hydraulic experiment platform which is being trial - produced at the new driving technology center in southwest jiaotong university is introduced in order to lay the base and present an ensure for forth successive research 实验是研究水压技术的有力手段。本文最后介绍了西南交通大学新型驱动技术中心正在研制的水压试验台,为后续的研究奠定了基础。 |
| 4. | I am shipping and marine project major there are a few problems to did not figure out in study recently the hand that hopes professional personage can extend aid 1 , in hydraulic experiment , the cabin of photograph adjacent why cannot at the same time affusion 我是船舶与海洋工程专业的最近在学习中有几个问题没有弄明白希望专业人士能够伸出援助之手1 ,水压试验中,相邻的船舱为什么不能同时注水 |
| 5. | As a better kind of modeling technology , absorbing wave - maker can solve the problem of multi - reflective waves in hydraulic laboratory , thus improve the precision of hydraulic experiment when model is used to resolve the problems of harbor , offshore and coastal . engineering 作为一种较新的试验模拟技术的设备,吸收式造波机可以解决水力学试验中的多次反射问题,因而在解决港口、海岸及近海工程问题的时候,可以提高模型试验的实验精度。 |
| 6. | The realizing methods for the algorithms are presented also . a hydraulic experiment system is established to simulate the different states of hydraulic system , with a pump , several valves , turbo - flowmeter , pressure gauge , and many hydraulic pipelines of different diameter 利用液压泵、各种控制阀门、标准表及不同管径液压管路构建了一个液压实验系统,可实时模拟武器装备液压系统的各种工作状态,为超声波的压力、流量测量提供了一实验平台。 |
| 7. | The main work is done with the help of model experiment . in the flood - relief experiment , the flood carrying capacity of spillway tunnel is checked . in the hydraulic experiment of the diversion power conduit system , the followings are studied : the flow condition and fluctuation in the surge chamber , the distribution of flow velocity before the rack in the surge shaft , the amplitude of stage in the quick gate bay etc . the test step , content and results of different proposals are introduced in details 本项优化试验研究的目的主要在于,通过泄洪系统整体水力学试验,校核泄洪洞的泄流能力;通过发电引水系统整体水力学试验,研究调压井内水流流态和水位波动情况、调压井内拦污栅前流速分布情况;确定快速闸门井内水位波动幅度;试验确定压力管道水击压力穿井系数以及泄洪洞弧形门处的水压力。 |
| 8. | Since the movement of flows and boundary conditions of the natural rivers with too many variables are extremely complicated , it is unable to reveal the behaviors by using of the present theories and experience in this area . the river hydraulic experiments are playing important roles to solve these problems 由于天然河道水流及河床边界变化极其复杂,且相关变量太多,很多问题非现有理论所能描述,也难根据以往经验得到解决,因此河道水力模型试验就成为解决这类复杂问题的重要手段。 |
| 9. | Based on remaining the dismantling and loading , we make full of the equipped instrument , and fall the whole cycle into three modules : speed - adjusting module , pressure module and multi - execution instrument module . we must compile the related plc control program and pc control program , and redesign the control cabinet and re - fix the electric cycle . we complete the auto - control of the hydraulic experiment table through the loading and recapitulate debugging 在保留其元件可装拆性的基础上,我们充分利用现有液压实验台的液压元件,对其基本回路进行重新组合,分为调速、压力和多执行元件控制回路三个模块,并编制可编程控制器程序和上位机数据采集程序控制回路动作,重新设计该实验台的电气控制柜,并进行现场接线和安装调试,实现所有教学必须实验回路的自动控制。 |
| 10. | Based on the head loss coefficients obtained from gardel ' s semi - empirical equations for t - junction flow and experiment of welded t - junction , the hydraulic characteristics of throttled surge tank are estimated and compared with those gotten from hydraulic experiment . 3 . four different methods of determining the head loss coefficients of throttled surge tank have been employed to investigate the effect of methods afore mentioned on the accuracy of calculating surge and pressure head of throttled surge tank 给出了基于gardel关于三通管水头损失系数的经验公式、焊接t形三通管水头损失系数的实验资料及截面突变管道的水头损失资料,计算有连接管的阻抗式调压室在不同流态下水头损失系数的计算方法,并将这两种方法计算得到的调压室局部水头损失系数分别与模型试验成果进行了比较和分析; 3 |