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Development of a dynamic rotating turbine blade model
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0001-5760-3919
2009 (English)In: 16th International Congress on Sound and Vibration 2009, ICSV 2009, 2009, 1901-1908 p.Conference paper, Published paper (Refereed)
Abstract [en]

A rotating turbine blade, as a dynamic system, is modeled to view the insight of its vibration feature at the operating condition. The blade is modeled using the plate structure with the continuum elasticity theory. In order to consider the effect of the rotation, the centrifugal force and Coriolis force are involved in the strain-stress analysis together with the velocity components. Using Hamilton's principle, the equations of motion as well as corresponding boundary conditions are derived for two cases studied in this paper. One case focuses on a straight blade and the other on a blade with a twist angle. A validation for the derivation of the equations of motion is given by some comparisons with results from reference papers.

Place, publisher, year, edition, pages
2009. 1901-1908 p.
Keyword [en]
Centrifugal Forces, Continuum elasticity theory, Hamilton's principle, Operating condition, Plate structure, Rotating turbines, Twist angles, Velocity components, Elasticity, Equations of motion, Stress analysis, Turbomachine blades, Turbines
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-152037Scopus ID: 2-s2.0-84871405715ISBN: 978-161567736-8 (print)OAI: oai:DiVA.org:kth-152037DiVA: diva2:749809
Conference
16th International Congress on Sound and Vibration 2009, ICSV 2009, 5 July 2009 through 9 July 2009, Krakow, Poland
Note

QC 20140925

Available from: 2014-09-25 Created: 2014-09-23 Last updated: 2014-09-25Bibliographically approved

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Kari, Leif

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