Study Of Hydraulic Serve Control And Experimental Devices

Along with science technical develop and progress continuously, the liquid presses the application of servo technique, making the liquid press the servo control to occupy the important position in automate realm, every need the control system of the big power, fast accurate reflection, all have already adopted the liquid to press the servo control. Therefore produce the business enterprise to satisfy the development to this aspect the talented person towards controlling the need of the deluxe technical ability talented person of above-mentioned technique also more and more bigly, so for, this text studies the relevant liquid to press servo measure to control the design and the application of experiment the device.This text introduces the liquid to press first technique especially the liquid presses the servo control technique in the automatic control realm of extensive application, then elaborated that the development controls the liquid to press the servo and technical talented person and the development liquid to press servo measure to control the necessity of experiment the device.The liquid press servo measure to control the experiment device to mainly be pressed the servo control system and works by the liquid to control the machine to constitute. Press servo system is through a liquid of servo valve control the symmetry urn, the not symmetry urn, the servo valve control liquid of the servo valve control press three motive of motor unit etc. system, carry out to open the wreath, shut the wreath, the straight line sport, revolve the sport, line, not line, symmetry, not symmetry etc. of control and to the pressure, discharge, dint, move, angle, twist and turn soon, speed, temperature etc. of examination, this equip and can carry on a series of science experiment, can carry on the servo valve and the function examination of the servo urn. This motive characteristic that equips medium three motive unites to request to have the likeness, so while studying to design three performance organizations, should have the same bandwidth to carry on the design according to them.Textual the first part built up three motive organizations from the theories not the line mathematics model, for carried on the actual design to lay the theories foundation. The second part builds up to be suitable for the calculator to carry on the SIMULINK to imitate the square distance of true appearance, for studied a not symmetryurn, the servo valve control liquid of the servo valve control dynamic state characteristic and designs that presses the motor to provide the emollient tool. The third part carry on should equip of the total design and performance organization specification of design. Give settle the servo valve control parameter of the not symmetry urn first, then control the not symmetry urn imitate the true model in the servo valve up pass to try to gather together that system of the method assurance of bandwidth. Because request three motive units and should have the same bandwidth, thus according to same principle of bandwidth, control a bandwidth with similar to the piston pole diameter and the amount of row of the motors carry on trying to gather together, attain to control the not symmetry urn with servo valve to have path at the valve build up. The four-part cent carries on the frequency characteristic and ranks' jump to respond to the analysis to above three exportations of motive organizations and controls the not symmetry urn to carry on PID correct to the valve, to make should equip to have the good dynamic state characteristic and control curacy.