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Erschienen in:
1989 | OriginalPaper | Buchkapitel
Impulse and Random Tests for the Modal Parameters Evaluation of a CFR Panel
verfasst von : P. Gaudenzi
Erschienen in: Developments in the Science and Technology of Composite Materials
Verlag: Springer Netherlands
Enthalten in: Professional Book Archive
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This paper deals with the evaluation of modal characteristics of a carbon fiber reinforced laminated panel in the range of frequencies 0–200 Hz. Although composite materials are largely adopted because of their specific properties in structural parts of many kind of systems, their dynamic behaviour is not fully investigated. In this work a single point excitation technique is adopted with impulse and random excitation devices, in order to carry out a modal parameter extraction of the panel under test. Experimental results were processed by a FFT spectral analyzer and finally rearranged to get information on eigenfrequencies and structural damping coefficients. A comparison between the results obtained with impulse and random excitation is also made.