Distribution of vibrations of a double-leaf plate with random inhomogeneities

Chung, H

Distribution of vibrations of a double-leaf plate with random inhomogeneities

aut.conference.type	Paper Published in Proceedings
aut.researcher	Chung, Hyuck
dc.contributor.author	Chung, H
dc.date.accessioned	2013-10-08T03:10:27Z
dc.date.accessioned	2013-12-11T22:42:06Z
dc.date.accessioned	2013-12-11T22:42:18Z
dc.date.available	2013-10-08T03:10:27Z
dc.date.available	2013-12-11T22:42:06Z
dc.date.available	2013-12-11T22:42:18Z
dc.date.copyright	2013-07-01
dc.date.issued	2013-07-01
dc.description.abstract	This paper shows how to compute vibrations of a double-leaf plate with random inhomogeneities in its components, two plates and reinforcement beams. The modelling method is based on the variational principle for elastic plates and beams. In addition to the deformation of individual components, the model includes contributions from junctions between components, e.g., how rigidly a beam is attached to a plate, and slightly twisted beams. The junction rigidity is included as potential energy in addition to the strain and the kinetic energies of the components. The random inhomogeneities are simulated as continuous smooth random functions of locations in the structure. A random function is realized using a predetermined probability density function, and an autocorrelation function over the dimension of the component. The vibration is computed for each set of random functions, and statistical properties of the simulations are analysed. The random stiffness and the junctions affect the behaviour of the structure in a wide frequency range and a lower frequency range, respectively. The spectrum of surface vibration level shows changes in resonance frequencies depending on the random functions. Further relationship between the vibrations and the distributions of the random functions will be presented.
dc.identifier.citation	11th International Conference on Recent Advances in Structural Dynamics, held at University of Pisa, Pisa Italy, 2013-07-01to 2013-07-03, published in: Proceedings of the 11th International Conference on Recent Advances in Structural Dynamics
dc.identifier.uri	https://hdl.handle.net/10292/6214
dc.relation.replaces	http://hdl.handle.net/10292/5731
dc.relation.replaces	10292/5731
dc.relation.replaces	http://hdl.handle.net/10292/6213
dc.relation.replaces	10292/6213
dc.rights	The presentations that make up the current and archived conferences on the Eleventh International Conference on Recent Advances in Structural Dynamics have been made open access and are freely available for viewing, for the benefit of authors and interested readers.
dc.rights.accessrights	OpenAccess
dc.title	Distribution of vibrations of a double-leaf plate with random inhomogeneities
dc.type	Conference Contribution
pubs.elements-id	156751
pubs.organisational-data	/AUT
pubs.organisational-data	/AUT/Design & Creative Technologies
pubs.organisational-data	/AUT/Design & Creative Technologies/School of Computing & Mathematical Science