Aiming at the excessive vibration of a locomotive traction converter, the actual vibration environment and the vibration transmission characteristics from the wheel to traction converter were studied by field tests, and comparing with the IEC 61373 standard, the vibration source and the cause of excessive vibration were determined．By carrying out an experimental verification based on the measured spectrum, the vibration fault of a certain electrical equipment inside the traction converter was successfully reproduced.On this basis, the vibration reduction scheme for the installation structure of the traction converter was proposed, and the comparative numerical simulation of the vibration reduction scheme based on the measured data was carried out by using a FEM software.The results show that the vibration reduction scheme proposed has obvious damping effect and can significantly reduce the stress level of the traction converter under vibration and shock excitation.
Key words
locomotive /
traction converter /
vibration /
simulation
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