Rotordynamics ’92: Proceedings of the International Conference on Rotating Machine Dynamics Hotel des Bains, Venice, 28–30 April 1992

439 Pages·1992·34.29 MB·English

by  A. D. Dimarogonas (auth.)

ROTORDYNAMICS '92
ROTORDYNAMICS '92
Proceedings of the International Conference
on Rotating Machine Dynamics
Hotel des Bains, Venice, 28--30 April 1992
Edited by
Michael J. Goodwin
Springer-Verlag
London Berlin Heidelberg New York
Paris Tokyo Hong Kong
Barcelona Budapest
Michael J. Goodwin BSc, PhD, CEng, MIMechE
Department ofMechanical and Computer-Aided Engineering, Staffordshire Polytechnic,
Beaconside, Stafford ST18OAD, UK
ISBN-13:978-3-540-19754-6 e-ISBN-13:978-1-4471-1979-1
001: 10.1007/978-1-4471-1979-1
BritishLibraryCataloguingin PublicationData
Rotordynamics'92: Proceedingsofthe InternationalConference
onRotatingMachineDynamics,HoteldesBains, Venice,
28-30April 1992
I. Goodwin, M. J.
621.8
ISBN-13:978-3-540-19754-6
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Acatalogrecordfor thisbookisavailable from the LibraryofCongress
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Proceedings of the International Conference on Rotating Machine Dynamics
ROTORDYNAMICS '92
Hotel des Bains, Venice, 28-30 April 1992
Contents
Conference sponsors. VlI
Foreword . IX
Conference organising committee . xi
Editorial board. . . . . . . . . . Xl
List of papers and page numbers. Xlll
List ofcontributing authors . . . XVlI
STAFFORDSHIRE
POLYTECHNIC
Organised by Staffordshire Polytechnic
Proceedings of the International Conference on Rotating Machine Dynamics
ROTORDYNAMICS '92
held at the Hotel des Bains, Venice, 28-30 April 1992
Organised by Staffordshire Polytechnic
Sponsored by:
Staffordshire Polytechnic
The Canadian Society for Mechanical Engineers
The Japan Society of Mechanical Engineers
The Vibration Institute
The Theory of Lubrication and Bearings Institute
Federazione delle Associazioni Nazionali dell'Industria Meccanica Varia ed Affine
(ANIMA)
The Institution of Diagnostic Engineers
The Australian Academy of Science
Associazione Elettrotecnica ed e1ettronica Italiana
Proceedings of the International Conference on Rotating Machine Dynamics
ROTORDYNAMICS '92
held at the Hotel des Bains, Venice, 28-30 April 1992
Organised by Staffordshire Polytechnic
Foreword
Rotating machinery is one of the largest classes of machinery used, and designers
and operatorsofsuch equipmenthave todeal with many related potential problems
associated with machine vibration and wear. The use of sophisticated design aids,
and of new monitoring techniques has developed as a consequence of the world's
increasingdemandsfor quieter machineoperation, longermachine life, and greater
efficiency of operation. With improved machine design, and greater operating
experience, the expectations of the engineer concerned with using machines
becomes yet more demanding, and so research into rotating machinerycontinues at
a substantial pace.
The international conference, rotordynamics '92, has drawn together the ideas
and practices ofengineers concerned with rotating machinery, from throughout the
world. The topics discussed included balancing, torsion, cracked structures, bladed
systems, seals, and bearings, as well as methods used in analysis and monitoring.
Reference to practicalexperienceintheoperationofmachinerywasalsomade. This
book is a record of the contributions to the conference, made by experts from
throughout the world. It should provide stimulating reading to all concerned with
rotating machinery.
Happy reading!
Michael Goodwin
Proceedings of the International Conference on Rotating Machine Dynamics
ROTORDYNAMICS '92
held at the Hotel des Bains, Venice, 28-30 April 1992
Organised by Staffordshire Polytechnic
Conference Organising Committee:
Dr M J Goodwin (Chairman), Staffordshire Polytechnic, United Kingdom
Dr P J Ogrodnik, Staffordshire Polytechnic, United Kingdom
ProfF Pina da Silva, Instituto Superior Tecnico, Portugal
Prof Z Parszewski, University of Melbourne, Australia
ProfT Sankar, University ofConcordia, Canada
Dr M White, University ofTrondheim, Norway
Dr M Zhao, Shanghai Jiao Tong University, China
Prof R. Nordmann, University of Kaiserlautern, Germany
Prof A Tamura, Takushoku University, Japan
Editorial Board:
Dr M J Goodwin (Chairman), Staffordshire Polytechnic, United Kingdom
Dr P J Ogrodnik, Staffordshire Polytechnic, United Kingdom
ProfF Pina da Silva, Instituto Superior Tecnico, Portugal
Prof Z Parszewski, University of Melbourne, Australia
ProfT Sankar, University of Concordia, Canada
Dr M White, University ofTrondheim, Norway
Dr M Zhao, Shanghai Jiao Tong University, China
Prof R. Nordmann, University of Kaiserlautern, Germany
ProfA Tamura, Takushoku University, Japan
Dr 0 Matsushita, Tsuchiura Works, Hitachi Ltd., Japan
Dr L. Hongtao, Shanghai Jiao Tong University, China
Dr S Z Wang, Shanghai Jiao Tong University, China
Dr J Krodkiewski, University of Melbourne, Australia
Dr T Chalko, University ofMelbourne, Australia
Dr M P Roach, Staffordshire Polytechnic, United Kingdom
Prof S Michimura, Takusyoku University, Japan
Dr Z Guo-Gang, Shanghai Jiao Tong University, China
Dr S H Chan, University of Trondheim, Norway
List of Papers Presented
Keynote Paper Session
A brief history of rotor dynamics
A. D. Dimarogonas . . . . . . 1
Session 1 Balancing
Theoretical and practical aspects in the field balancingoflarge turbogenerator
rotors
C. Frigeri, M. Tonsi and G. A. Zanetta .. . . . . . . . . . . . . " 11
Active balancing of a high speed rotor in magnetic bearings
C. R. Knospe, R. R. Humphris, E. H. Maslen and P. E. Allaire ..... 19
Session 2 Torsion
A new generation oftorsional stress analysers for turbine-generators
H. L. Berger and S. T. Kulig . . . . . . . . . . . . . . . . . . 27
Coupled axial-torsional vibration in turbine generator rotors
R. A. Driver and T. S. Wilkinson . . . . . . . . . . . 35
Nonstationary torsional vibrations during clutch operation
S. Yanabe, A. Okada andN. Yamagishi . 43
Session 3 Cracked Structures
A finite element model for transverse cracks in rotors including some fracture
mechanics aspects
D. P. W. Horrigan, J. F. Williams and Z. A. Parszewski . 51
The effects of a transverse crack on the dynamics of a circular shaft
P. S. Leung . 59
Vibrations ofcracked rotating blades
J. Wauer . 68
Session 4 Condition Monitoring I
Development of computerised on-line condition monitoring of rotating
machinery- a custom based approach
K. Ramakrishna, A. Rajamani and S. Narayanan . . . . . .. . ... 76
An expert system ofcrack monitoring and diagnosing for rotating machines
M. Zhao and Z. H. Luo . . . . . . . . . . . . . . . . . . . . . . . 84
Alignment identification of multi-bearing rotor systems
J. M. Krodkiewski, J. Ding and Z. A. Pars?ewski 92
Smart rotors
A. D. Dimarogonas and A. Kollias . . . . .. . . 100
Fuzzy input-neural net adoptive expert systems for rotor diagnosis and
prognosis
A. D. Dimarogonas . 107
Session 5 Stability
Plain bearing stabilisation using swirl injection
R. D. Brown 115
Stability analysis for a novel design of low impedance hydrodynamic bearing
L. K. Lim, M. J. Goodwin, P. J. Ogrodnik and M. P. Roach. . . . . . . 124
On the performance and stability of magnetic bearings
D. K. Anand, J. A. Kirk, R. Zmood and E. Rodriquez . . . . . . . . . 132
Session 6 Seals
Identificationoffriction factors formodellingtheexcitingforcescausedbyflow
in labyrinth seals
G. Thieleke and H. Stetter . . . . . . . . . . . . . . . . . . . . . . 140
Physical modelling and data analysis of the dynamic response of a flexibly
mounted rotor mechanical seal
A. S. Lee and I. Green 150
The relevance of the dynamic behaviour of the supporting structure in
calculatingcritical speedsofmultistagecentrifugal pumpswith interstageseals
N. Bachschmid, K. L. Cavalca and F. Cheli . . . . . . . . . . . . . . 158
Session 7 Analytical Methods I
The FEM development of a general, hollow conical shaft element for use in
transfer matrix analysis of rotor-bearing systems: part I - formulation of the
model
M. S. Darlow and T. J. Bievenue . . . . . . . . . . . . . . . . . . . 166
The FEM development of a general, hollow conical shaft element for use in
transfer matrix analysis ofrotor-bearing systems: part II - analysis results and
experimental correlation
M. S. Darlow and T. J. Bievenue . . . . . . . . . . . . . . . . . . . 174
Response of a discontinuously nonlinear rotor system
D. Gonsalves, R. D. Neilson and A. D. S. Barr 182
Session 8 Condition Monitoring II
A PC-based evaluation and monitoring system for rotating machinery
M. Typrin, E. C. Pawtowski and R. G. Kirk . . . . . . . . . . . 190
Someeffectsoftheemergingscienceofdesignonthedesignofturbomachinery
using a computer-based design model in conjunction with a knowledge-based
expert system
D. Muster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
The organisation and use ofknowledge-basedexpertsystemsin thecomputer
based design ofturbomachinery
D. Muster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Session 9 Geared Systems
Optimisingparameters in gear hob manufacturing to reduce geartransmission
vibration and wear
Z. X. Zhao, R. W. Baines and Z. H. Wang 217
Finiteelementcontactanalysisoftheconerollerenvelopingwormgearingand
stress computation
L. Hui and Z. Guanghui . . . . . . . . . . . . . . . . . . . . . . . 225
Vibrational behaviour of rotors with gear couplings in case of insufficient
coupling lubrication
N. Bachschmid, A. Curami and F. Petrone 232
Session 10 Analytical Methods II
On discrete-continuous modelling of the rotating systems for a non-linear
torsional vibration analysis
R. Bogacz, H. Irretier and T. Szolc . . . . . . . . . . . . . . . . . . 240
The rotary motion of a three degree offreedom manipulator linkage
K. L. Fan, M. J. Goodwin, M. D. Butler, D. D. L. Risk andJ. E. T. Penny 248
Physical interpretation and some properties of complex eigenvectors in
rotordynamics by a time domain approach
H. R. T. de Azevedo and H. I. Weber . . . . . . . . . . . . . . . . . 256
The evaluation ofthe safety ofthe shaft system ofthe large turbine generator
set
H. Y. Luo . 264
Session 11 Bladed Systems
Vibration reduction of blading using interconnecting elements
G. M. Chapman, E. Swain, X Wang and M. Yang . 270
Vibration characteristics of an axial blading with different types of coupling
links
J. F. Mayer ..... 278
Session 12 Case Studies
Theuseoffinite elementmethodtosolvevibrationproblemsonverticalpumps
M. Scali and G. Marenco . 287
The influenceofpulsatingmechanical loadsonacousticnoisegenerated byAC
induction motors
R. P. Lisnerand R. J. Alfredson 294
Dynamics of electric submersible pumps
R. D. Neilson . 302
High vibrationon a90MWgas turbine-generatordue to asupportingstructure
resonance
G. L. Lapini, M. Zippo, A. Vallini, G. Diana and A. Collina 310
Study on torsional shaft vibration response of turbine-generator unit
H. Xiuzhu, Z. Xueyan and S. Daixia . . . . . . . . . . . . . . 319
Session 13 Vibration Control
Wide band active vibration controller for an out-of-balance rotor
A. V. Metcalfe andJ. S. Burdess . . . . . . . . . . . . . . . . . . . 327
Vibration control of a flexible rotor suspended by active electromagnetic
bearings
Y. Suzuki, S. Michimura and A. Tamura . 335
Reduction of periodic rotating vibration using the repetitive control in the
rotating servo system
Z. W. Zhong . 343
Session 14 Bearings I
Steady-state analysis of a novel variable impedance oil film bearing
Y. Fang, M. J. Goodwin, P. J. Ogrodnik and M. P. Roach . . . . . . . . 351
Influence of elasticity and geometrical profile on dynamic transmissibility of
connecting-rod bearing
B. Fantino and B. Bou-Sai'd 359
Vibration control in rotating machinery by the use ofaccumulators or aerated
lubricants
M. P. Roach and M. J. Goodwin . . . . . . . . . . . . . . . . . . . 367