Effective Mistuning Identification Method of Integrated Bladed Discs of Marine Engine Turbochargers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU136554" target="_blank" >RIV/00216305:26210/20:PU136554 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2077-1312/8/5/379" target="_blank" >https://www.mdpi.com/2077-1312/8/5/379</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/jmse8050379" target="_blank" >10.3390/jmse8050379</a>

Result language

angličtina

Original language name

Effective Mistuning Identification Method of Integrated Bladed Discs of Marine Engine Turbochargers

Original language description

Radial turbine and compressor wheels form essential cornerstones of modern internal combustion engines in terms of economy, efficiency and, in particular, environmental compatibility. As a result of the introduction of exhaust gas turbochargers in the extremely important global market for diesel engines, higher engine efficiencies are possible, which in turn reduce fuel consumption. The associated reduced exhaust emissions can answer questions that results from environmentally relevant aspects of the engine development. In shipping, the international Maritime Organisation (IMO) prescribes the step-by-step reduction of nitrogen oxide and other types of emissions. To reduce these emissions, various systems are being developed, in which turbochargers are an important part. The requirements for the reliability and service life of turbochargers are constantly increasing. Turbocharger blade vibration is one of the most important problems to be solved when designing the rotors. In the case of real rotors, so-called mistuning arises, which is a slight deviation of the properties of the individual blades from the design parameters. The article deals with an effective method of mistuning identification for cases of integrated bladed discs of marine engine turbochargers. Unlike approaches that use costly scanning laser Doppler vibrometers, this method is based on using only a simple laser vibrometer in combination with a computational model of the integrated bladed disc. The added value of this method is, in particular, a significant reduction in the cost of laboratory equipment and a reduction in the time required to obtain the results.

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

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

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

Name of the periodical

Journal of Marine Science and Engineering

ISSN

2077-1312

e-ISSN

—

Volume of the periodical

8

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

1-12

UT code for WoS article

000539274600079

EID of the result in the Scopus database

2-s2.0-85087070767