MIMO testing of railway rolling stock

Data acquisition systems, recorders, spectrum analyzers RL-C21M

Vibration control systems RL-C21

Vibration control systems RL-C25

Data acquisition systems, recorders, spectrum analyzers RL-R19

Data acquisition systems, recorders, spectrum analyzers RL-R17

Software Sensor Calibration

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Introduction

One of our customers in China contacted us with a project: they needed a vibration testing system to check how the railway’s operating environment influences the equipment. For this purpose, RULA China offered to perform a series of vibration tests on the rolling stock using a multi-axis shaker system and an RL-C25 controller to simulate the normal vibration environment.

Solution

The customer used a three-axis shaker system and an RL-C25 controller. One RL-C25 unit has 4 output channels and 16 input channels. This configuration allowed the user to conveniently control a three-axis shaker system from one master device.

Solution

A three-axis shaker system provides the most realistic simulation of the vibration conditions: the vibration is applied simultaneously from 3 directions. RL-C25 controller can control vibration shakers with up to 6 degrees of freedom, providing unparallel accuracy of vibration testing.

Result

The controller identification algorithm is based on the computation of the transfer-function matrix. This approach allowed the user to control both vibration and rotation, generating an extensive report about the condition of the equipment and its possible fatigue.

More about Software for MIMO and other tests

Conclusion

Using a multishaker test in RULA software for vibration testing, and with the help of an easy test set-up interface, our customer in China quickly performed a series of vibration tests and was able to judge whether the equipment has withstood the tests.