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Machinery Vibration Alignment : McGraw-Hill Professional Engineering - Victor Wowk

Machinery Vibration Alignment

McGraw-Hill Professional Engineering

Hardcover

Published: 11th May 2000
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How-to-do-it guide to eliminating machine vibrations

One of the most common causes of severe machinery vibration is the misalignment of drive shafts and other components. "Machinery Vibration: Alignment," by Victor Wowk, gives you a practical resource for aligning shafts, bearings, gears, pulleys and a wide variety of power transmission components in machines without further training. You get step-by-step procedures for balancing, resonance, structural vibrations, isolation, instruments, diagnostics, and trending. Many of the methods described require only simple tools, eliminating the need for a $20,000 laser alignment system.

Case studies covering everything from simple fans to high-speed turbines give you examples of real-world problem solving. You will find the extensive coverage of the FFT spectrum analyzer a valuable addition to this hands-on toolkit.

Prefacep. ix
Acknowledgmentsp. xi
Introductionp. 1
What Is Alignment?p. 3
Why Be Concerned?p. 5
Historyp. 10
Diagnosing Misalignmentp. 15
Static Diagnosisp. 15
Diagnosing Misalignment While Operatingp. 17
Misalignment Versus Unbalancep. 23
Measuring Misalignmentp. 25
Metrologyp. 25
Geometric Featuresp. 28
Dial Indicatorsp. 35
Measuring Rotating Shaftsp. 39
Graphical Calculationsp. 58
Measuring Stationary Objectsp. 64
Mechanical Distance Measurementsp. 66
Electronic Transducersp. 68
Computersp. 73
Offset Versus Runoutp. 77
Preparing for the Taskp. 81
Strategyp. 82
Gather Machine Informationp. 85
Prepare Measuring Instrumentsp. 88
Prepare Toolsp. 88
Pre-Alignment Checks at the Machinep. 89
Rough Methodsp. 91
Reverse Indicatorp. 97
Setupsp. 97
Principlesp. 100
Advantages and Limitationsp. 104
Mathematical Formulasp. 105
Graphical Plottingp. 107
Plotting Examplesp. 109
Variationsp. 127
Face and Rimp. 129
Setupsp. 130
Theoryp. 130
Calculationsp. 133
Example Problemp. 136
Variationsp. 138
Comparison of Methodsp. 140
Moving Machinesp. 143
Toolsp. 144
Gaining Accessp. 144
Measurementp. 145
Calculationp. 147
Movementp. 148
Prepare to Operatep. 148
Procedurep. 150
Axial Positioningp. 153
Vertical Movesp. 155
Horizontal Movesp. 158
Strategyp. 165
Moving While Operatingp. 169
Alignment Tolerancesp. 171
Metrologyp. 173
Coupling Tolerancesp. 175
How Long Should Alignment Take?p. 177
When to Stopp. 177
Bearing Stiffness and Vibrationp. 181
Complicating Factorsp. 183
Nonrepeatable Measurementsp. 184
Poor Foundationsp. 185
Symptoms of Resonancep. 189
Tests for Resonancep. 189
Fixes for Resonancep. 190
Case History of a Diesel Engine with a Base Resonancep. 191
Bent Shaftp. 194
Casing Distortionp. 197
Bar Sagp. 201
Mechanical Changesp. 206
Piping Strainp. 208
Thrust Forcesp. 210
Torquesp. 211
Hydraulic Forcesp. 211
Shaft Riding Up on the Oil Wedgep. 212
Gear Reactionsp. 213
Thermal Growthp. 213
Field Measurements of Growthp. 218
Dial Indicatorp. 218
Proximity Probes Mounted on Water-Cooled Standsp. 218
Benchmark Gagesp. 220
Dodd Barsp. 220
Instrumented Couplingp. 221
Optical Measurementp. 222
Lasersp. 222
Vernier-Strobep. 223
Hot Alignmentp. 223
Growth Compensationp. 225
Reference Listp. 228
Drive Shaftsp. 231
Straight-Line Methodsp. 233
Rim-Rim Methodp. 234
Face-Facep. 238
Shaft Sagp. 242
Quill Shaftp. 245
Large, Heavy, or Multiple Machinesp. 247
Initial Placementp. 251
Natural Sag Curvep. 252
Flange-Mounted Equipmentp. 255
Single-Bearing Machinesp. 263
Close-Coupled Equipmentp. 268
Reciprocating Machinesp. 271
Foundation Stiffnessp. 273
Alignment Offsets and Heatp. 276
Torsionp. 278
Component Alignmentp. 281
Bearing Alignmentp. 282
Self-Aligning Bearingsp. 288
Gear Alignmentp. 293
Pulley Alignmentp. 296
Optical Toolingp. 299
Instrumentsp. 300
Methodsp. 304
Laser Alignmentp. 313
Technology of Laserp. 315
Advantages and Disadvantagesp. 320
Couplingsp. 323
Purpose and Theoryp. 323
Types of Couplingsp. 326
Rigid Cylinderp. 327
Rigid Flangesp. 327
Rigid Compressionp. 328
Quill Shaftp. 329
Flexible Shaftsp. 329
Spring Couplingsp. 329
Metal Bellowsp. 330
Beam Couplingp. 331
Roller Chainp. 331
Gearp. 331
Steel Gridp. 332
Link Couplingp. 333
Flexible Diskp. 334
Contoured Diaphragmp. 335
Sliding Block and Sliding Diskp. 335
Rotating Linkp. 336
Cardan Jointsp. 337
Elastomeric Compressionp. 337
Elastomeric Shearp. 339
Fluid Couplingsp. 340
Magnetic Couplingp. 341
Selection Criteriap. 341
Alignment Tools and Suppliesp. 345
Drawingsp. 349
Formulasp. 353
Alignment Standard for New and Rebuilt Equipmentp. 359
Bibliographyp. 373
Indexp. 377
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780070719392
ISBN-10: 007071939X
Series: McGraw-Hill Professional Engineering
Audience: Tertiary; University or College
Format: Hardcover
Language: English
Number Of Pages: 384
Published: 11th May 2000
Publisher: McGraw-Hill Education - Europe
Country of Publication: US
Dimensions (cm): 23.6 x 16.0  x 3.1
Weight (kg): 0.8
Edition Number: 1