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Electro-hydraulic servo axle fatigue test system

Electro-hydraulic servo axle fatigue test system

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1. Electro-hydraulic servo axle fatigue test system

1. The  electro-hydraulic servo axle fatigue test system has also become the electro-hydraulic servo axle housing bending test system ; it is mainly used for bending fatigue test and static compression test (static stiffness test) of automobile axles, and also suitable for various structural parts in Performance test under dynamic load. By changing the fixture, the tensile, compression, high-cycle, low-cycle experiments and research of materials and parts can be completed.

2. The  electro-hydraulic servo axle fatigue test system adopts a two-channel electro-hydraulic servo coordinated loading test system, which is mainly composed of a test plate, a gantry afterburner frame, two electro-hydraulic servo linear actuators, a constant pressure servo pump station, and two-channel electric Hydraulic servo coordinated loading control system, test accessories, piping system, cooling system, etc. This system can realize the two-channel coordinated loading fatigue test of the vehicle bridge; by replacing the fixture, it can be used for the static stiffness, vertical loading fatigue test, horizontal loading fatigue test, double happiness coordinated loading or unidirectional fatigue test of other parts.

2. The main parameters and indicators of the electro-hydraulic servo axle fatigue test system :

Serial number

Item

Specifications

1

Maximum test force

± . 1 00kN, accuracy of indication 2% -100% FS ± 1%

2

Maximum amplitude

± 75 mm, ± 0.5% FS optional ± 100 mm ± 125 mm )

3

Frequency Range

0.1-20Hz

4

Main test waveform

Sine wave, triangle wave, square wave, oblique wave, random wave, etc.

5

Test type

Fatigue test, dynamic and static composite test

6

Sampling frequency

1000Hz

7

Number of control system channels

2 channels, each channel can be loaded in coordination

8

way to control

Force, displacement fully digital PID closed loop control , smooth switching

9

Actuator installation method

Front and rear mounting ears fixed

10

Pump station

140L/min, 21MPa, 55kw, AC



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