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2.1 Test force unit:
Maximum dynamic and static test force: ±100kN;
Effective measurement range: 2%—100% FS regardless of the whole process;
Static test force indicating value accuracy: less than ±0.5%; dynamic test force indicating value accuracy: less than ±1.0%;
Average load fluctuation of test force: less than ±1%;
Dynamic load fluctuation of test force: less than ±2%;
2. 2 Displacement unit:
The maximum displacement of the system: not less than ±50mm (the total stroke is not less than 100mm);
Dynamic and static indicating value accuracy: ±0.5%FS;
2.3 Actuator indicators:
Actuator effective stroke: not less than ±50mm (total stroke not less than 100mm);
Maximum working pressure: 21MPa;
Maximum test force ±100KN;
Front flange connection, installed under the table
2.4 Test frequency: 0.1～50Hz;
2.5 Main test waveforms: sine wave, square wave, triangle wave, ramp wave, half-sine, half-triangle, various combination waveforms.
2.6 Pull pressure over zero hydraulic forced clamping wedge fixture
The clamping force can be adjusted;
Specimen clamping range: Flat specimen clamping jaws: 0-7mm, 7-14mm, 1 pair each; Round specimen clamping jaws: φ5-φ10mm, φ10-φ16mm, 1 pair each;
With prestressed adjusting ring;
2.7 Compression and other test accessories:
Diameter φ80mm;
Designed for use with hydraulic chucks;
Various test accessories (options) can be made according to user requirements;
2.8 Parameters of constant pressure oil source:
The constant pressure oil source adopts the parallel structure of double pumps, which can be controlled independently, with low energy consumption and low noise;
Pressure: 21Mpa;
Flow: 40L/min;
Power: 380V 15kW
The net volume of the fuel tank is 230L;
2.9 The main indicators of the controller
It adopts DL900 full digital servo control system,;
WinQuick single-channel dynamic and static test software was used.
The 900 control system adopts AMD520 interface processor and TI32-bit DSP control processor, and the software operating system is Win7.
Function generator frequency: 0.01～300Hz.
Control mode: displacement, load, strain three control modes, each control mode can be switched freely and smoothly.
Function generator waveform: sine wave, triangle wave, square wave, sawtooth wave, monotonic wave (ramp wave) and trapezoidal wave, etc.
Power supply: 220V, not higher than 2kW;
The conditioning unit has closed-loop control modes such as displacement, force, and deformation, and the control mode can be switched smoothly;
The typical value of static control accuracy is better than 0.5%FS, and the typical value of dynamic control accuracy is better than 1%FS;
Equipped with Chinese test software, test configuration files, test reports, calibration files, etc. with write protection;
Simple and elegant software interface, real-time display of test curves, such as time-displacement curve, time-load curve, displacement-load curve etc.
With test protection settings, load upper and lower limit protection, displacement upper and lower line protection can be set freely;
It automatically record test data, digital oscilloscope, digital voltmeter function.
2.10 Host Frame Parameters
Dimensions: about 1180mm×690mm×2300mm (length×width×height);
lCenter distance between columns: 580mm;
lMaximum adjustable test clear space: not less than 800mm;
lThe column is plated with hard chrome and polished
lUpper beam: hydraulic lifting, hydraulic locking
lTotal weight: about 1550kg;
