Patent ID: 7920974

Claim:
A method for a generating a vibration profile for a single rotational device in a computer system, the method comprising: using at least one computer system for: sequentially sweeping a rotation speed of the single rotational device over a range of rotation speeds, and, while driving the single rotational device at each rotation speed, collecting a time-domain vibration signal produced by the single rotational device; and computing a frequency spectrum of the time-domain vibration signal at each rotation speed, thereby generating a set of frequency spectra associated with two or more rotation speeds over the range of rotation speeds for the single rotational device; combining the set of frequency spectra to generate a composite vibration profile for the single rotational device; identifying at least one structural resonance of the computer system; and modifying the composite vibration profile for the single rotational device to mitigate the effect of the at least one structural resonance of the computer system.