The invention relates to a method that can be used in the field of rail systems technology to detect the flat wheel deformation (31) condition in the wheels (30) of the railway vehicle (20). In particular, the invention is concerned with the detection and analysis of the mechanical vibrations, generated by the vibration waves (50) from the wheels (30) moving on the rails (10) with the vibration sensors (40). Hence, it relates to the method for determining the presence and severity of the flat wheel deformation (31) condition in the wheels (30) of the railway vehicle (20).
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