UNSTEADY AERODYNAMICS, Aerodynamika

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UNSTEADY AERODYNAMICS, AEROACOUSTICS
AND AEROELASTICITY OF TURBOMACHINES
Unsteady Aerodynamics, Aeroacoustics
and Aeroelasticity of Turbomachines
Edited by
KENNETH C. HALL
Duke University, Durham, North Carolina, U.S.A.
ROBERT E. KIELB
Duke University, Durham, North Carolina, U.S.A.
and
JEFFREY P. THOMAS
Duke University, Durham, North Carolina, U.S.A.
A C.I.P. Catalogue record for this book is available from the Library of Congress.
ISBN-10 1-4020-4267-1 (HB)
ISBN-13 978-1-4020-4267-6 (HB)
Published by Springer,
P.O. Box 17, 3300 AA Dordrecht, The Netherlands.
www.springer.com
Printed on acid-free paper
All Rights Reserved
© 2006 Springer
No part of this work may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, microfilming, recording
or otherwise, without written permission from the Publisher, with the exception
of any material supplied specifically for the purpose of being entered
and executed on a computer system, for exclusive use by the purchaser of the work.
Printed in the Netherlands.
Contents
Preface
xi
Part I Flutter
Flutter Boundaries for Pairs of Low
Pressure Turbine Blades
3
Roque Corral, Nélida Cerezal, and Cárlos Vasco
Influence of a Vibration Amplitude Distribution on the Aerodynamic
Stability of a Low-Pressure Turbine
Sectored Vane
17
Olga V. Chernysheva, Torsten H. Fransson, Robert E. Kielb, and John Barter
A Method to Assess Flutter Stability of Complex Modes
31
Andrea Arnone, Francesco Poli, and Claudia Schipani
Flutter Design of Low Pressure
Symmetric Modes
Turbine Blades with Cyclic
41
Robert Kielb
,
John Barter
,
Olga Chernysheva and Torsten Fransson
Vladymir Tsimbalyuk, Anatoly Zinkovskii
,
Vitaly Gnesin
,
Romuald Rzadkowski, Jacek
Sokolowski
53
Possibility of Active Cascade Flutter Control with Smart Structure
in Transonic Flow Condition
65
Junichi Kazawa, and Toshinori Watanabe
Experimental and Numerical Investigation of 2D Palisade
Flutter for the Harmonic
Oscillations
vi
Experimental Flutter Investigations
of an Annular Compressor Cascade:
Influence of Reduced Frequency
on Stability
77
Part II Forced Response
Unsteady Gust Response in the Frequency Domain
95
A. Filippone
Axial Turbine Blade Vibrations Induced by the Stator Flow
107
M. B. Schmitz, O. Schäfer, J. Szwedowicz, T. Secall-Wimmel
,
T. P. Sommer
Mistuning and Coupling Effects
in Turbomachinery Bladings
119
Gerhard Kahl
Evaluation of the Principle
of Aerodynamic Superposition
in Forced Response Calculations
133
Comparison of Models
to Predict Low Engine Order Excitation
in a High Pressure Turbine Stage
145
Markus Jöcker, Alexandros Kessar, Torsten H. Fransson, Gerhard Kah,
Hans-Jürgen Rehder
Experimental Reduction of
Transonic Fan Forced Response
by IGV Flow Control
161
S. Todd Bailie, Wing F. Ng, William W. Copenhaver
Part III Multistage Effects
Unsteady Aerodynamic Work
on Oscillating Annular Cascades
in Counter Rotation
177
M. Namba
,
K. Nanba
Structure of Unsteady Vortical Wakes behind Blades of
Mutual-Moving Rows of an Axial Turbomachine
189
V. E .Saren, S.A. Smirnov
Joachim Belz and Holger Hennings
Stefan Schmitt
,
Dirk Nürnberger
,
Volker Carstens
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