Publication Date:
2019-07-13
Description:
The 'Cepstrum' technique of vibration-path identification allows the recovery of the transfer function of a system with little knowledge as to its excitation force, by means of a mathematical manipulation of the system output in conjunction with subtraction of part of the output and suitable signal processing. An experimental program has been conducted to evaluate the usefulness of this technique in the cases of simple, cantilever-beam and free-free plate structures as well as in that of a complex mechanical system. On the basis of the transfer functions thus recovered, it was possible to evaluate the shifts in the resonance frequencies of a structure due to the presence of defects.
Keywords:
STRUCTURAL MECHANICS
Type:
International Congress on Recent Developments in Air and Structure-Borne Sound and Vibration; Mar 06, 1990 - Mar 08, 1990; Auburn, AL; United States
Format:
text
