Air spring fatigue test bench

It is driven by an electro-hydraulic actuator and is used to conduct fatigue performance tests on various air spring products for automobiles and rail transit. The vehicle suspension spring has been subjected to a fatigue test of 3 million times. It has repeated expansion and contraction vibration at a frequency of 3Hz and an amplitude half of the maximum compression value. It can continue to move repeatedly for about 1 year.

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Product Detail

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Product function and purpose

It is mainly used to test the dynamic and static mechanical properties of various materials, parts, elastomers, shock absorbers and components. It can perform tensile, compression, bending, low and high cycle fatigue, crack propagation, and fracture mechanics tests under sine wave, triangle wave, square wave, trapezoidal wave, and combined waveforms. It can also be equipped with environmental testing devices to complete environmental simulation tests at different temperatures.

Product specifications

Maximum test force（KN）	100
Load measurement range（KN）	2 to 100
Actuator stroke (mm)	Plus or minus 50
Relative error of dynamic indication value	Plus or minus 1.0%
Test waveform	Sine wave
Host response frequency range (Hz)	0.01 to 5
Trial count	1 x 10' ~ 1 x 10。 times (optional)
Control method	PIDF control mode is adopted to achieve closed loop control of force, displacement, deformation and other variables
Protection function	Displacement, load, fatigue times set automatic stop protection