Blades Forced Vibration Under Aero-Elastic Excitation Modeled by Van der Pol

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00482040" target="_blank" >RIV/61388998:_____/17:00482040 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1142/S0218127417501668" target="_blank" >http://dx.doi.org/10.1142/S0218127417501668</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1142/S0218127417501668" target="_blank" >10.1142/S0218127417501668</a>

Result language

angličtina

Original language name

Blades Forced Vibration Under Aero-Elastic Excitation Modeled by Van der Pol

Original language description

This paper employs a new analytical approach to model the influence of aerodynamic excitationnon the dynamics of a bladed cascade at the flutter state. The flutter is an aero-elastic phenomenonnthat is linked to the interaction of the flow and the traveling deformation wave in the cascadenwhen only the damping of the cascade changes. As a case study the dynamic properties of thenfive-blade-bunch excited by the running harmonic external forces and aerodynamic self-excitednforces are investigated. This blade-bunch is linked in the shroud by means of the viscous-elasticndamping elements. The external running excitation depends on the ratio of stator and rotor bladennumbers and corresponds to the real type of excitation in the steam turbine. The aerodynamicnself-excited forces are modeled by two types of Van der Pol nonlinear models. The influence of theninteraction of both types of self-excitation with the external running excitation is investigatednon the response curves.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/GA16-04546S" target="_blank" >GA16-04546S: Aero-elastic couplings and dynamic behaviour of rotational periodic bodies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

International Journal of Bifurcation and Chaos

ISSN

0218-1274

e-ISSN

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Volume of the periodical

27

Issue of the periodical within the volume

11

Country of publishing house

SG - SINGAPORE

Number of pages

12

Pages from-to

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UT code for WoS article

000416035500004

EID of the result in the Scopus database

2-s2.0-85034822134