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FREE OUT-OF-PLANE VIBRATIONS OF A ROTATING BEAM WITH NON-LINEAR ELASTOMERIC CONSTRAINTS

โœ Scribed by G. Pohit; A.K. Mallik; C. Venkatesan

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
190 KB
Volume
220
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Free, out-of-plane vibration of a rotating beam with a non-linear, elastomeric constraint has been investigated. The elastomer is modelled as a parallel combination of spring and damper elements. The stiffness and damping parameters are evaluated by using previous experimental data. The linear analysis is performed by two techniques, one based on a power series expansion and the other based on the Rayleigh-Ritz principle. The results are found to be in excellent agreement. In the non-linear analysis, a numerical-perturbation technique is applied to determine the frequency-amplitude relationship. A parametric study revealing the influence of the non-linear constraint is presented.

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