frequency locus

frequency locus

[′frē·kwən·sē ‚lō·kəs]
(control systems)
The path followed by the frequency transfer function or its inverse, either in the complex plane or on a graph of amplitude against phase angle; used in determining zeros of the describing function.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Yoo and Pierre [18, 19] studied the vibration characteristics of rotating cantilever rectangular plates and composite plates, respectively, and found out and discussed the natural frequency locus veering, crossing, and associated mode shape variations in detail.
Li and Zhang [24] developed a dynamic model for FG plates undergoing large overall motions, studied the free vibration of rotating cantilever FGM rectangular plates, and found frequency locus veering and associated mode shift phenomena.
Furthermore, frequency locus veering and mode shape exchanging phenomena are found both in both static and dynamic states.
The frequency approach to analysis of the system stability based on analysis of frequency locus function is offered for the obtained model.
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