Vibration and Wear in High Speed Rotating Machinery

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 and Inertia 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.