Determination of loss factor using resonant and non-resonant methods

Date

1998-08-21

Author

Birlik, G
Turgay, S

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A comparative assessment of resonant, R, and non-resonant, NR, methods is presented. For this purpose two series, B and W series, of cylindrical specimens were prepared and tested in the laboratory. B and W series were assumed to typify respectively low (eta0.4) materials. Using a dual channel FFT analyzer the specimens were excited either by random or multisine signals in the frequency range, f less than or equal to 200 Hz. Using R and NR methods corresponding loss factors, eta(R) and eta(NR) were obtained for B and W specimens. eta(R) values of the high damping W specimens were similar to 20% high compared to eta(NR) values, in the vicinity of their transition frequencies. eta(R) and eta(NR) values of the low damping B specimens, however, were observed not to differ significantly with respect to each other.

URI

https://hdl.handle.net/11511/66096

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Department of Engineering Sciences, Conference / Seminar

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Citation Formats

G. Birlik and S. Turgay, “Determination of loss factor using resonant and non-resonant methods,” 1998, p. 139, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66096.