Generalized modal reduction method for the dynamic analysis of rotating mechanical systems

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Generalized modal reduction method for the dynamic analysis of rotating mechanical systems

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Generalized modal reduction method for the dynamic analysis of rotating mechanical systems

Popis výsledku anglicky

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.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/LO1506" target="_blank" >LO1506: Podpora udržitelnosti centra NTIS - Nové technologie pro informační společnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied and Computational Mechanics

ISSN

1802-680X

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

18

Strana od-do

81-98

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85090715260