Vibration and Wear in High Speed Rotating Machinery

Tbotogy and Vynam~c~ a~e u6uatty con6~de~ed a~ 6epa~ate 6ubject6. Acco~d~ngty, ~e6ea~che~6 ~n th06e two 6~etd6 6etdom meet, de6p~te, the 6act that the~e ~6 a conde~a bie ove~tap 06 ~nte~e~t~ namety when deat~ng w~th ~otat~ng mach~ne~y cond~t~on mon~tong. Rotat~ng mach~ne~ a~e u~ed ~n atmo~t eve~y ~ndu~tat appt~cat~on namety m~t~ta~y, powe~ gene~at~on, chem~cat , 600d p~oce6ng, etc. Any powe~ u~e~ o~ gene~at~ng ~y~tem ~6 ba6ed on ~otat~ng mach~ne~ 6uch a~ tu~b~ne~, 6an~, pump6, comp~eo, etc. mak~ng the ~c~ent~6ic e660~t~ in the 6~etd 06 ~otat~ng mach~ne~y in ~ecent yea wett ju~t~6~ed. Fa~tu~e 06 ~otat~ng component~, due to wea~ andlo~ v~b~a t~on p~obtem~, 6t~tt d~66~cutt to p~ed~ct and ~e~utt~ 6~eQuentty 6~om ~nadeQuaxe degn. Thi~ i~ o~iginaxed by ~mpe~6ecx knowtedge 06 the acxuat behav~ou~ 06 xhe ~y~tem~ Ve~pixe xhe p~og~e achieved in xhe 6ietd~ 06 x~ibotogy and dynamic~, a tack 06 communicaxion ctea~ty ~xitl exi~x~ between xh06e ~nvolved in de~ign and developmenx ~n ind- x~y and ~e~ea~ch team~ in un~veixie6 and othe~ li~hmenx~. B~inging togethe~ x~ibotog~6t~ and dynam~c~6t~ ~n o~de~ xo cont~ibute xo inc~ea6e p~og~e~6 ~n both 6ietd~ wa~ the main object~6 06 the NATO AVVANCEV STUVY INSTITUTE (ASI) on "VIBRATION ANV WEAR VAMAGE IN HIGH SPEW ROTATING MACHINERY" hetd ~n T~oia, Po~xugat, 10xh to 22nd Ap~il 1989, and o~ga n~zed by CEMUL-Cente~ 06 Mechan~c~ and Maxe~ial~ 06 the Technicat Un~ve~~~ty 06 Li~bon.

Texte du rabat

Proceedings of the NATO Advanced Study Institute on Vibration and Wear Damage in High Speed Rotating Machinery, Tróia, Sebútal, April 10-22, 1989

Contenu
I Particle and Wear Debris Analysis.- Particles in Lubricating Oils Sources and Consequences .- Condition Monitoring of Machine Elements: Particle Separation and Investigation.- Condition Monitoring of Machine Elements Measuring Methods for Particle Amount and Size.- Lubricants Indicators for Oil System Damage and Malfunction.- Early Failure Detection by Spectrometric Methods.- Magnetic Methods of Condition Monitoring.- II Erosion, Fretting Wear And Vibrations Fundamentals.- Cavitation Noise in Centrifugal Pumps.- Load Flow Phenomena and Excitation Forces in Centrifugal Pumps.- Estimation of Erosion Rates and Implosion Pressures in Cavitating Pumps and Cavitation Test Device.- Vibrations and Fretting Wear.- Wear Testing of Materials for Machines.- Wear Analysis of Vanes Pumps Running with Thickened High Water Based Fluids.- Machinery Vibration Measurements and Analysis.- Critical Speeds of Continuous Shaft-Disc Systems.- A Theoretical Study into the Effects of Damped Flexible Foundations on the Dynamic Behaviour of a 66 ØMW LP Steam Turbine.- A General Method for Rotordynamic Analysis.- Vibration of Rotor-Bearing Assemblies.- Modal Testing Techniques.- Applications and Advances of Modal Testing.- Modal Testing of Machinery Components.- Solid Particle Erosion in Electric Power Plants.- III Rotor/Bearing Behaviour.- On Bearing Deformation and Temperature Distribution in Dynamically-Loaded Engine Bearings.- The Control of Rotor Vibration Using Squeeze-Film Dampers.- Flow Efficiency and Excitation in Turbine Stages.- An Electroviscous Damper.- Dynamic Behaviour of Hydrostatic Radial Bearings.- Stability of Rotating Machines Running in Variable Stiffness Bearings.- Gas Bearing Design and Instabilities.- Identification of Stiffness, Damping andInertia Coefficients of Annular Turbulent Seals.- Identification of Modal Parameters of an Elastic Rotor With Oil Film Bearings.- The Effect of Translational and Conical Bearing Misalignment on the Response and Stability of a Non-Linear Rotor Bearing System.- Stability of Flexible Rotor Supported on Journal Bearings.- Non Linear Effects in Lubricated Bearings.- Foundation Effects in Rotor Dynamic Behaviour.- A Method for Dynamics Calculations of Rotor-Bearing-Foundation Systems.- Dynamic Coefficients for Fluid Film Journal Bearings.- Destabilization of Rotors from Friction in Internal Joints.- IV Expert Systems and Life Assessment Procedures.- A Survey of Dynamic Loading Conditions on Gear Teeth Contacts.- Remaining Life Evalutation for Steam Turbine Blades.- Remaining Life Evaluation for Steam Turbine Rotors.- A Measurement System for Computer Aided Monitoring of Bearings.- Ten Crucial Concepts Behind Trustworthy Fault Detection in Machine Condition Monitoring.- Some Requirements for Automated Data-Reduction Systems Suitable for Processing Vibration Measurements Taken on High-Speed Rotating Machinery for the Support of Operational and Maintenance Decisions.- An Intelligent Knowledge Based System for Fault Diagnosis in Turbomachinery.- The Use of Rotordynamics Simulation as an Aid for Fault Diagnosis in Turbomachinery.- Fail-Safe Concept and Reliability in High-Speed Bearing Arrangements for Aerospace Turbomachinery.- Machinery Diagnostics: Examples of Application to Thermoelectric Plants.- Analyse Fonctionnelle de la Microgeometrie d'un Contact E.H.D.. Critere d'Endommagement en Fatigue Superficielle.