Electro - Hydraulic Servo Fatigue Testing Machine for Composite Materials

Servo hydraulic fatigue testing machine
±25kN~ ±2000kN 0.01~50Hz tension compression fatigue testing HDT-BEquipment overview:Electro-hydraulic servo fatigue machinehereinafter referred to as testing machine is mainly used for testing the metal, nonmetal and composite materials at room temperature (high or low temperature, corrosive environment) under the dynamic characteristics of machine test can be carried out as follows:Tensile and compression testBy the electric controller, servo valve, load sensor, displacement sensor, with the computer of extensometer closed-loop servo control system, can accurately control the test process automatically, and automatic measurement test force, displacement, deformation, test parameters, such as torque and Angle.
Tester can realize can realize sine wave, triangle wave, square wave, half sine wave and cosine wave, triangle wave, and square wave, waveform, such as tensile, compression, bending, can be low and high cycle fatigue mechanics test, etc.Environmental test equipment can be configured to complete environmental simulation tests at different temperatures.
Machine operation is flexible and convenient, moving beam lifting, lock, specimen clamping are completed by the button operation, the use of advanced hydraulic servo drive technology loading, high precision dynamic load sensor and a high-resolution magnetostrictive displacement sensor measurement specimen strength and displacement.The whole digital control system realizes the power, deformation, displacement PID control, and the control can smooth transition.The test software works in WINDOWS XP/WINDOWS 7 Chinese environment, powerful data processing function, test conditions and test results automatic memory disk, display and print.Test process include all computer control, the machine is scientific research, metallurgy, construction, national defense war industry, colleges and universities, machinery manufacturing, transportation and other industries ideal cost-effective test system.The edc-580 digital servo controller is the new generation controller of DOLI, Germany, which has been successfully launched in the market.
1. The servo controller has the following functions:
2.The controller has the control mode of PIDF, which can realize the closed loop control of the force, displacement and other parameters, and the three control modes can smoothly switch.Automatic setting of initial PID parameters: dynamic response adaptive control system.The PID parameter can be automatically updated to compensate the change of the stiffness of the sample automatically, so as to ensure the optimal control status of the system.
3.The controller has the ability of signal generating: the various test waveforms can be created: sine wave, triangular wave, square wave, oblique wave, sawtooth wave, random ripple, etc.
4.The controller can collect various test data: peak, valley value, time, maximum value, minimum value, mean value, cyclic data, fatigue data, etc.Data sampling and feedback frequency are not less than 5kHz.The whole digital controller is used for control and data acquisition system using 32-bit dual digital signal processor (DSP) technology.Control speed 6kHz, of which 5kHz is (position, load, strain) control closed loop, 1kHz for rigidity control closed loop.
Multiple parameter control: proportional, integral, differential (PID), Lag, feedforward (Feed) serial and parallel control.
5.The advanced all-digital signal processing technology has a signal resolution of plus or minus 180000 yards, which is exempted from the manual conversion of the range within the range of the full range.
6. can be used independently: test data directly in the EDC display, control instruction by the composite function key input, through the EDC within the base of the data processing program, after connecting the printer to output the tabular control and measurement data, a variety of embedded application software for the user to choose from.
Meet the standard:
1)GB/T 2611-2007 "general technical requirements of testing machine"
2) GB/t16825.1-2008 test of static uniaxial testing machine part 1: test and calibration of tension and/or pressure testing machine testing force system
3)GB/T 16826-2008 "electric hydraulic servo universal testing machine"
4)JB/T 8612-1997 "electrohydraulic servo universal testing machine"
5) JB9397-2002 technical conditions of tensile fatigue test machineModelDT-254BHDT-504BHDT-105BHDT-255BHDT-505BHDT-106BHDT-206BCapacityDynamic (kN)±25±50±100±250±500±1000±2000Static (kN)255010025050010002000AccuracyForceBetter than ±0.5% of reading (static), better than ±1.0% of reading (dynamic)ExtensionBetter than ±0.5% of reading (static), better than ±1.0% of reading (dynamic)Displacementbetter than ±1.0% of readingDynamicFrequency (Hz)0.01~50WaveformSine wave, triangular wave, square wave, oblique wave, trapezoidal wave and custom functionAmplitudeDepending on servo pump capacityMachineStructureTwo columnsFour columnsActuator travel (mm)±75(±50)Distance between columns(mm)400600750x600Tensile space (without grips)500750900Tag: strain testing machine, dynamic fatigue testing machine