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Vibrational insertion loss of traditional and smart joints
KTH, Superseded Departments, Vehicle Engineering.ORCID iD: 0000-0002-9632-8398
2001 (English)In: Acustica, ISSN 0001-7884, Vol. 87, no 2, 199-205 p.Article in journal (Refereed) Published
Abstract [en]

The vibrational insertion loss of selected traditional and smart joints are investigated experimentally with the test-rigs presented in reference [1, 2]. The influences of various factors such as spacing between fasteners, overlap, bonding materials are examined. The relation between system damping and the damping introduced by the joint is discussed. For smart joints, comparison is also made with the transmission loss of elastic interlayer in order to understand the mechanism. At low frequencies the main positive effect of a joint is damping. When the frequency is higher, the joint start to separate the system and other factors such as stiffness and weight become more important. Maximum damping does not coincide with the maximum vibrational insertion loss. In order to achieve best vibro-acoustic performance and structure integrity, it is better to use different joint techniques in different frequency bands, since the insertion loss is frequency dependent.

Place, publisher, year, edition, pages
2001. Vol. 87, no 2, 199-205 p.
URN: urn:nbn:se:kth:diva-20700ISI: 000169170700006OAI: diva2:339396
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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