TORSIONAL VIBRATION ANALYSIS OF WIND TURBINE GEARBOXES

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In gearboxes of wind turbines, the excitation from the gears has effects in the form of structure-borne sound vibrations and undesired noise emissions. Incorrect tooth meshing with transmission errors also leads to rapid wear of the individual components. We identify these sources of error using suitable measurement technology and guarantee you high-quality monitoring of your systems in order to avoid cost-intensive damage and component failures.

TRANSMISSION ERROR

The transmission error occurs across all stages of the wind turbine gearbox and is expressed by the deviation of the absolutely error-free transmission function of the rotary motion or the torque across all transmission stages of the gearbox. This phenomenon can be attributed to macro- and microgeometric errors in the gearing on the one hand and to the load on the other. This manifests itself quasi-statically under real conditions as well as through dynamic deformation, i.e. through oscillation of the teeth during load impacts when the rotor-side shaft starts and stops.

DETERMINATION OF LOAD CONDITION

BODY AND AIRBORNE SOUND