Waveguide finite elements for curved structures
2008 (English)In: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 312, no 4-5, 644-671 p.Article in journal (Refereed) Published
A waveguide finite element formulation for the analysis of curved structures is introduced. The formulation is valid for structures that along one axis have constant properties. It is based on a modified Hamilton's principle valid for general linear viscoelastic motion, which is derived here. Using this principle, material properties such as losses may be distributed in the system and may vary with frequency. Element formulations for isoparametric solid elements and deep shell elements are presented for curved waveguides as well as for straight waveguides. In earlier works, the curved elements have successfully been used to model a passenger car tyre. Here a simple validation example and convergence study is presented, which considers a finite length circular cylinder and all four elements presented are used, in turn, to model this structure. Calculated results compare favourably to those in the literature.
Place, publisher, year, edition, pages
Elsevier, 2008. Vol. 312, no 4-5, 644-671 p.
Finite element method; Hamiltonians; Mathematical models; Passenger cars; Viscoelasticity; Curved structures; Curved waveguides
Other Engineering and Technologies
IdentifiersURN: urn:nbn:se:kth:diva-8615DOI: 10.1016/j.jsv.2007.11.020ISI: 000255137000008ScopusID: 2-s2.0-40649116697OAI: oai:DiVA.org:kth-8615DiVA: diva2:13985
QC 201007222008-06-032008-06-032014-08-29Bibliographically approved