Analysis and enhancement of flexural wave stop bands in 2D periodic plates
2015 (English)In: Physics Letters A, ISSN 0375-9601, Vol. 379, no 22-23Article in journal (Other academic) Published
The band structure and enhancement of flexural wave stop bands in a 2D periodic plate are investigated. A unified method for analysing and designing the stop band of the plates with various attached structures is proposed. The effect of attached structures is considered based on their equivalent parameters (added equivalent mass and equivalent moment of inertia). The influences of the equivalent parameters on the band structures are studied. Three cases are considered: adding pure equivalent mass, pure equivalent moment of inertia and the combination of these two. The stop bands are enhanced via the multi interaction between the host plate and the attached structure. The enhancement pattern is determined, and several ways to obtain a wider combined stop band are presented. The frequency response functions of corresponding finite periodic plates are calculated to verify the stop bands and their enhancement in a number of typical cases.
Place, publisher, year, edition, pages
2015. Vol. 379, no 22-23
IdentifiersURN: urn:nbn:se:kth:diva-158023DOI: 10.1016/j.physleta.2015.01.037ISI: 000353613600010ScopusID: 2-s2.0-84925843246OAI: oai:DiVA.org:kth-158023DiVA: diva2:773440
Updated from manuscript to article in journal.
QC 201505212014-12-192014-12-192015-06-12Bibliographically approved