Change search
ReferencesLink to record
Permanent link

Direct link
Dynamic stiffness matrix of a long rubber bush mounting
KTH, Superseded Departments, Vehicle Engineering.ORCID iD: 0000-0001-5760-3919
2002 (English)In: Rubber chemistry and technology, ISSN 0035-9475, Vol. 75, no 4, 747-770 p.Article in journal (Refereed) Published
Abstract [en]

The complete blocked dynamic stiffness matrix of along rubber bush mounting of particular interest for noise abatement is examined by an analytical model, where influences of audible frequencies, material properties, bush mounting length, and radius, are investigated. The model is based on the dispersion relation for an infinite, thick-walled cylinder with arbitrary boundary conditions at the radial inner and outer surfaces; yielding the sought stiffness matrix, including axial, torsional, radial, and tilting stiffness. A nearly incompressible material model is adopted, being elastic in dilatation while displaying viscoelasticity in deviation. The applied deviatoric Mittag-Leffler relaxation function is based on a fractional standard linear solid, the main advantage being the minimum number of parameters required to successfully model the rubber properties over a broad structure-borne sound frequency domain. The dynamic stiffness components display a strong frequency dependence at audible frequencies, resulting in acoustical resonance phenomena, such as stiffness peaks and troughs. The low-frequency stiffness asymptotes of the presented model are shown to agree with those of static theories.

Place, publisher, year, edition, pages
2002. Vol. 75, no 4, 747-770 p.
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-22125DOI: 10.5254/1.3545000ISI: 000179889000017OAI: diva2:340823
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2012-06-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Kari, Leif
By organisation
Vehicle Engineering
In the same journal
Rubber chemistry and technology
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 65 hits
ReferencesLink to record
Permanent link

Direct link