Inverse mass matrix via the method of localized lagrange multipliers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00483816" target="_blank" >RIV/61388998:_____/17:00483816 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Inverse mass matrix via the method of localized lagrange multipliers
Original language description
An efficient method for generating the mass matrix inverse is presented, which can be tailored to improve the accuracy of target frequency ranges and/or wave contents. The present method bypasses the use of biorthogonal construction of a kernel inverse mass matrix that requires special procedures for boundary conditions and free edges or surfaces, and constructs the free-free inverse mass matrix employing the standard FEM procedure. The various boundarynconditions are realized by the the method of localized Lagrange multipliers. Numerical experiments with the proposed inverse mass matrix method are carried out to validate the effectiveness proposed technique when applied to vibration analysis of bars and beams. A perfect agreement is found between the exact inverse of the mass matrix and its direct inverse computed through biorthogonal basis functions.nnn
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
COMPDYN 2017. 6th International conference on computational methods in structural dynamics and earthquake engineering. Proceedings
ISBN
978-618-82844-1-8
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1304-1311
Publisher name
National Technical University of Athens
Place of publication
Athens
Event location
Rhodes
Event date
Jun 15, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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