Dynamic Fatigue Tester (RS-8021)

Dynamic Fatigue Tester

Equipment Description:

The dynamic fatigue testing machine is mainly used to test various materials, components and parts, elastomer and caoutchouc elasticity, and used in dynamic and static mechanics performance test for damper. Also it is able to be tested under the situations of sine wave, triangular wave, square wave, trapezoidal wave, oblique wave, zigzag wave and user-defined wave, and used in low and high cycle fatigue test, crack growth test and fracture mechanics test.

The testing machine is easy and flexible to operate.

Fully digital observation and control system could manage closed loop of power, dynamic displacement and deformation. During testing, the method of digital quantity display without distinguishing files is used to display values of power, displacement, dynamic load and static load, and control values of highest and lowest peaks, frequency, cycle index, testing time of wave form etc. Meanwhile the method is used to track and display power and displacement curves in real-time, display and cut out dynamic data and wave form in real-time. With flexible data save mode, when testing, testing data is saved automatically in real-time in accordance with cycle index or testing time to ensure its safety.

Standards:

The testing machine meets following standards: GB/T2611 General Technical Requirements for Testing Machine, GB/T16826 Electric-Hydraulic Servo Universal Testing Machine, GB/T3075 Metal Axial Fatigue Testing Method, JB/T9379 Technical Conditions of Pulling Pressure Fatigue Testing Machine, GB/T228 Method of Tensile Test under for Metal Material Room Temperature etc.

Performance Characteristics:

1. Host machine: Two stand columns, base and beam constitute closed frame structure with strong rigidity and good stability, without reverse gap. The external surface of the double stand columns adopts electroplating hard chrome processing. Servo actuator (oil cylinder) is underlying and adopts bidirectional oil cylinder piston design so that sample clamping adjustment could be flexible and easy.

2. Hydraulic-servo pump station: Adopts leak-free mute technology. Pressure could be exported stably without fluctuation and with low noise, good dissipation, high filtering accuracy, and automatic protection ability when pressure overloads and oil temperature overheat.

3. Key components: Adopt internationally renowned brand-Italian ATOS servo valve, American LVDT displacement sensor and American TRANSCELL high-accuracy loading component.

4. Control mode: Power, displacement and deformation PID closed loop control which could achieve smooth handover under any control mode.

5. Testing software: Is applicable for Windows XP/Windows7operating system, owns the functions of setting test method, managing storage means, saving testing data automatically and printing test report etc.

6. Testing waveforms: Sine wave, square wave, triangular wave, trapezoidal wave, oblique wave, zigzag wave and user-defined wave etc.

7. Protection function: To set alarm and stop function when oil-way is blocked and overheats, liquid level is low, hydraulic system overloads, electrical machine overheats, preset number of fatigue is reached and sample fractures etc.

Working conditions:

1. Ambient temperature: 15~30 degree centigrade

2. Relative humidity: ≤ 85%

3. Power supply: AC380V 50Hz three-phase five-wire system, configuration of principal line shall meet the demand of 15kVA.

4. The device shall be installed on solid and horizontal ground. Levelness of the testing machine: 0.2/1000; Weight capacity of ground: Three times the weight of device.

5. When using the device, there shall not be vibration, corrosive medium, strong magnetic interference but ventilation shall be good.

6. Clients shall provide 52# anti-abrade oil for themselves as well as cooling water: Flow>6m3/h, cooling water pressure>0.6Mpa.