Abstract
Calculating vibration and noise with a high degree of accuracy is needed to estimate the radiated noise induced by the electromagnetic force from a motor. In the case of inverter motors, rotation speed and load leads to change in frequencies and amplitudes of electromagnetic force harmonics. We describe the development of a way of analyzing frequency response of electromagnetic vibration in the above conditions. We measured and calculated a sample motor's vibration of rotation orders that have a dominant affect on the overall vibration, and compared levels of vibration velocity. We calculated both rotation speeds and vibration velocity levels with three observable peaks with a high degree of accuracy.
