Rotating Machinery Vibration: From Analysis to Troubleshooting, Second Edition

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This reference is a powerful tool to strengthen vital in-house competency on the subject for professionals in a variety of fields. After presenting governing fundamental principles and background on modern measurement, computational tools, and troubleshooting methods, the author provides practical instruction and demonstration on how to diagnose vibration problems and formulate solutions. The topic is covered in four sequential sections: Primer on Rotor Vibration, Use of Rotor Dynamic Analyses, Monitoring and Diagnostics, and Troubleshooting Case Studies. This book includes comprehensive descriptions of vibration symptoms for rotor unbalance, dynamic instability, rotor-stator rubs, misalignment, loose parts, cracked shafts, and rub-induced thermal bows. It is an essential reference for mechanical, chemical, design, manufacturing, materials, aerospace, and reliability engineers. It is particularly useful as a reference for specialists in vibration, rotating machinery, and turbomachinery.

Format: Hardback
Author: Maurice L. Adams, Jr.
Published: 2010
Pages: 476
Table Of Contents:
Part I: Primer on Rotor Vibration

Vibration Concepts and Methods
One-Degree-of-Freedom Model
Multi-DOF Models
Modes, Excitation, and Stability of Multi-DOF Models
Lateral Rotor Vibration Analysis Models
Simple Linear Models
Formulations for RDA Software
Insights into Linear LRVs
Nonlinear Effects in Rotor Dynamical Systems
Torsional Rotor Vibration Analysis Models
Rotor-Based Spinning Reference Frames
Single Uncoupled Rotor
Coupled Rotors
Semidefinite Systems

Part II: Rotor Dynamic Analyses

RDA Code for Lateral Rotor Vibration Analyses
Unbalance Steady-State Response Computations
Instability Self-Excited-Vibration Threshold Computations
Additional Sample Problems
Bearing and Seal Rotor Dynamics
Liquid-Lubricated Fluid-Film Journal Bearings
Experiments to Measure Dynamic Coefficients
Annular Seals
Rolling Contact Bearings
Squeeze-Film Dampers
Magnetic Bearings
Compliance Surface Foil Gas Bearings
Turbo-Machinery Impeller and Blade Effects
Centrifugal Pumps
Centrifugal Compressors
High-Pressure Steam Turbines and Gas Turbines
Axial Flow Compressors

Part III Monitoring and Diagnostics

Rotor Vibration Measurement and Acquisition
Introduction to Monitoring and Diagnostics
Measured Vibration Signals and Associated Sensors
Vibration Data Acquisition
Signal Conditioning
Vibration Severity Guidelines
Casing and Bearing Cap Vibration Displacement Guidelines
Standards, Guidelines, and Acceptance Criteria
Shaft Displacement Criteria
Signal Analysis and Identification of Vibration Causes
Vibration Trending and Baselines
FFT Spectrum
Rotor Orbit Trajectories
Bode, Polar, and Spectrum Cascade Plots
Wavelet Analysis Tools
Chaos Analysis Tools
Symptoms and Identification of Vibration Causes

Part IV Trouble-Shooting Case Studies

Forced Vibration and Critical Speed Case Studies
HP Steam Turbine Passage through First Critical Speed
HPâ??IP Turbine Second Critical Speed through Power Cycling
Boiler Feed Pumps: Critical Speeds at Operating Speed
Nuclear Feed Water Pump Cyclic Thermal Rotor Bow
Power Plant Boiler Circulating Pumps
Nuclear Plant Cooling Tower Circulating Pump Resonance
Generator Exciter Collector Shaft Critical Speeds
Self-Excited Rotor Vibration Case Studies
Swirl Brakes Cure Steam Whirl in a 1300 MW Unit
Bearing Unloaded by Nozzle Forces Allows Steam Whirl
Misalignment Causes Oil Whip/Steam Whirl "Duet"
Additional Rotor Vibration Cases and Topics
Vertical Rotor Machines
Vector Turning from Synchronously Modulated Rubs
Air Preheater Drive Structural Resonances
Aircraft Auxiliary Power Unit Commutator Vibration-Caused Uneven Wear
Impact Tests for Vibration Problem Diagnoses
Bearing Looseness Effects
Tilting-Pad versus Fixed-Surface Journal Bearings
Base-Motion Excitations from Earthquake and Shock
Parametric Excitation: Nonaxisymmetric Shaft Stiffness
Rotor Balancing


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