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Dynamic stiffness of natural rubber cylinders in the audible frequency range using wave guides
KTH, Superseded Departments, Vehicle Engineering.ORCID iD: 0000-0001-5760-3919
KTH, Superseded Departments, Polymer Technology.
KTH, Superseded Departments, Polymer Technology.
2001 (English)In: Kautschuk und Gummi, Kunststoffe, ISSN 0022-9520, Vol. 54, no 3, p. 106-+Article in journal (Refereed) Published
Abstract [en]

This paper applies a wave guide model to analyze the temperature influence on the dynamic stiffness of a cylindrical vibration isolator of natural rubber in the audible frequency range; covering 20 to 20 000 Hz and - 60 to + 60 degreesC. A nearly incompressible material model is applied with shear modulus based on a fractional derivative model, thereby reducing the parameter number needed to accurately fit measurement results. Employing the method of reduced variables enlarges the frequency range available from measurements. Of particular interest are the stiffness peaks and troughs, the low-frequency stiffness, the propagating and nonpropagating modes, and their dependence on temperature.

Place, publisher, year, edition, pages
2001. Vol. 54, no 3, p. 106-+
Keyword [en]
dynamic stiffness, natural rubber, vibration isolator, fractional derivative, reduced variable, mode, wave guide, fractional calculus
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-20493ISI: 000167821900005OAI: oai:DiVA.org:kth-20493DiVA: diva2:339188
Note
QC 20100525 NR 20140804Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Kari, Leif

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