Generalized modal reduction method for the dynamic analysis of rotating mechanical systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F20%3A43956879" target="_blank" >RIV/49777513:23520/20:43956879 - isvavai.cz</a>
Result on the web
<a href="https://www.kme.zcu.cz/acm/acm/article/view/552/521" target="_blank" >https://www.kme.zcu.cz/acm/acm/article/view/552/521</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.24132/acm.2020.552" target="_blank" >10.24132/acm.2020.552</a>
Alternative languages
Result language
angličtina
Original language name
Generalized modal reduction method for the dynamic analysis of rotating mechanical systems
Original language description
The paper proposes modal reduction method of the dynamic systems composed of linear nonconservative subsystems coupled by nonlinear discrete couplings. Classical approach to the modal reduction is based on the transformation of the generalized coordinates by the real modal submatrix of the linear conservative part of the whole system. In case of modal synthesis method, transformation matrices are the real modal submatrices of the conservative part of mutually isolated subsystems. Rotating mechanical systems contain gyroscopic effects and other influences of rotation and damping. The paper introduces a generalized modal reduction method based on the complex modal values of the whole system or the isolated subsystems. Their complex eigenvalues and eigenvectors are used for transformation of the generalized coordinates and reduction of the number of degrees of freedom. The presented method is focused on vibrating rotating systems with gyroscopic and dissipative effects and nonlinear internal couplings.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
<a href="/en/project/LO1506" target="_blank" >LO1506: Sustainability support of the centre NTIS - New Technologies for the Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied and Computational Mechanics
ISSN
1802-680X
e-ISSN
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Volume of the periodical
14
Issue of the periodical within the volume
1
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
18
Pages from-to
81-98
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85090715260