Sometimes the same rolling bearing, shaft, or torque support keeps failing. Or the workpiece develops a pattern it’s not supposed to have. Or the frequency converter reports an overload and no one knows why.
Such issues often arise after commissioning or following technological changes. As a rule, these kinds of questions aren’t easy to answer. But with the help of various measurements, these troublesome phenomena can first be described. And then, in consultation with the plant designers, a solution is usually found quickly. Vibration diagnosis is the first step. This involves checking whether there are kinematically describable vibration excitations. In the next step, the vibrations are examined for excitations that have nothing to do with kinematics. These can be external excitations or natural vibrations. If this does not lead to the desired result, analyzing torsional vibrations often yields further insights. To do this, a torque measurement point is installed, and measurements are taken at representative operating points. A pattern may now emerge indicating that vibrations are occurring that were not expected. All these steps help to visualize problems and develop solutions together with the client.
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