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/lp/de-gruyter/shape-optimization-for-the-eigenfrequency-of-the-plate-2sH5Yqmimi
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- Publisher
- de Gruyter
- Copyright
- © 2018 Walter de Gruyter GmbH, Berlin/Boston
- ISSN
- 1572-9176
- eISSN
- 1572-9176
- DOI
- 10.1515/gmj-2017-0005
- Publisher site
- See Article on Publisher Site
Abstract
AbstractIn this paper, we consider an eigenvalue problem for the biharmonic operator that describes the transverse vibrations of the plate.Under the imposed boundary conditions, the eigenvalues of this operator are indeed eigenfrequencies of the clamped plate.The domain of the plate is taken variable and the domain functional, involving an eigenfrequency, is studied.A new formula for an eigenfrequency is proved, the first variation of the functional with respect to the domain is calculated, and the necessary condition for an optimal shape is derived. New explicit formulas are obtained for the eigenfrequency in the optimal domain in some particular cases.
Journal
Georgian Mathematical Journal – de Gruyter
Published: Mar 1, 2018