In order to save the machine from failure, operation at such whirling speeds must be avoided. Whirling is a complex phenomenon that can include harmonics but we are only going to consider synchronous whirl, where the frequency of whirling is the same as the rotational speed.
In order to avoid the machine's failure, it is crucial not to operate at such high speeds. Whirling is a complex phenomenon that might include harmonics; however, for our purposes, we are concentrating solely on synchronous whirling, where the whirling frequency matches the rotational speed.