Use of dFRFs for identification of travelling wave modes in rotating disks

Use of the wave directional frequency response function (dFRF), which is composed of conventional frequency response functions, is proposed for identification of the forward and backward travelling wave modes of isotropic rotating disks. The driving point dFRF, which is a weighted sum of complex wave dFRFs defined in the complex wave coordinates, is also derived for separation of the forward and backward travelling wave modes in the frequency domain. Numerical examples of rotating disks are treated to demonstrate the analytical developments. Experiments with a laboratory rotating disk are also performed to verify the theoretical findings.
Publisher
ASME-AMER SOC MECHANICAL ENG
Issue Date
1998-07
Language
ENG
Keywords

FREQUENCY-RESPONSE FUNCTIONS; NATURAL FREQUENCIES; MACHINERY; DIAGNOSIS

Citation

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME, v.120, no.3, pp.719 - 726

ISSN
1048-9002
DOI
10.1115/1.2893889
URI
http://hdl.handle.net/10203/5201
Appears in Collection
ME-Journal Papers(저널논문)
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