Dynamic Analysis Of The PWS-100 Dymamic & Static Universal Test Machine With Electro-Hydraulic Servo Controlled

Dynamic & Static Universal Testing Machine with Electro-Hydraulic Servo Controlled integrates with much technique such as mechanic electricity and hydraulic. It was applied broadly because of many characteristic. It is not only high in the power - weight ratio and large in the load stiffness and applied force but also agile in electric system and high in precision.But based on the incomplete statistic, the amount of Universal Testing Machine with Electro-Hydraulic Servo Controlled that can be used normally is no more than half since it is manufactured in 1987. So the analysis and study on the typical Test Machine- the PWS-100 Dymamic & Static Universal Test Machine with Electro-Hydraulic Servo Controlled is presented. At first, the dynamic mathematic model is created in the light of the known dimensions and structure. Then base on the mathematic model, dynamic analysis of the system is studied by drawing the open-loop bode diagram closed-loop bode diagram and step response curve using the analysis and calculating function of Matlab. The influence factor on frequency character steady and performance of the system is also analyzed.