Vibration Fundamentals 1 2010 Part 11 docx

21.Mobley.29 Page 294 Friday, February 5, 1999 12:40 PM
294 Index
Generators, 92
Periodic motion, 6, 17, 20
Permanent mounting, 55
Handheld transducers, 56
Phase angle, 21, 46, 281
Hanning weighting, 249
Piezoeclectric crystals, 52
Harmonic function, 6, 9, 21, 102
Piston orientation, 88
Harmonic motion, 17, 20, 34
Pitch circumference, 82
Hertz, 21
Positive displacement compressors, 84, 115
Hydraulic instability, 95, 149, 222
Positive displacement pumps, 95, 123
Predictive maintenance, 3, 4
Imbalance, 13, 73, 140, 175, 177
Primary frequency, 21
Induced loads, 15
Process envelope, 62, 130, 198,
Industrial reference data, 62, 130, 185
Process information sheets, 99
Inertia force, 30
Process instability, 149, 222, 232
Process rolls, 93, 119, 166
Jackshafts, 77, 163
Process weighting, 248
Pumps, 94, 120
Leak detection, 5

Line frequency, 73, 92
Quality control, 3, 4
Linear averaging, 251
Quick disconnect, 56
Linear motion, 15
Lines of resolution, 103
Radial, 54
Load, 11, 14, 98, 108, 197
Rathbone chart, 130
Load distribution, 93, 119
Real-time analysis, 225
Loose parts detection, 3, 5
Reciprocating compressors, 84, 115
Loose rotor bars, 73
Reciprocating machines, 15, 84, 124
Low frequency response, 70
Rectangular weighting, 249
Reference channels, 247
Magnets, 56
Resonance, 150, 177, 201
Mass, 26, 33, 36
Revolutions per minute, 9
Maximum frequency, 102
RMS, 25
Mechanical imbalance, 14, 140
Root cause analysis, 189
Mechanical looseness, 143
Root-mean-square, 25
Mechanical motion, 15
Rotating machinery, 13, 18

Minimum frequency, 103
Rotor.
Misalignment, 93, 145, 173, 175
imbalance, 14
Mode shape, 75, 91, 133, 222
passing frequency, 90
Modulations, 146
Running speed, 9, 10, 74, 76, 79, 81, 90, 91,
Monitoring parameters, 71
92, 102
Multi-channel, 48, 233
Multiplane imbalance, 142
Screw compressor, 89, 116
Settling time, 57
Narrowband, 22, 23, 61, 64, 71, 91, 104,
Shaft deflection, 75, 91, 102, 133, 195
127, 134
Signature analysis, 63, 181
Narrowband zoom, 233
Single-channel, 48, 68
Natural frequency, 29, 34, 213
Single plane imbalance, 141
Noise control, 3, 5
Sleeve bearings, 157
Nonharmonic motion, 20
Slip frequency, 74
Normalization, 10, 136, 196
Speed, 75, 108, 197
Spring force, 31
Operating envelope, 14, 110

Static.
Orders analysis, 101
deflection, 29
Overlap averaging, 106, 247
resonance, 151, 203, 213
twist, 284
Passing frequencies, 99
Steady state, 47, 68
Peak hold averaging, 251
Steam turbines, 74
Peak-to-peak, 24
Stiffness, 26, 27, 33, 36
21.Mobley.29 Page 295 Friday, February 5, 1999 12:40 PM
Synchronous time averaging, 233, 259
Time domain, 8, 10, 42, 49, 138
Torsional analysis, 234, 267
resonance, 278
stiffness, 37
Transducer, 11, 49, 112
Transient analysis, 230, 255
Trending, 60, 125
Trigger group, 243
Turbulent flow, 14
Undamped, 28, 33, 38
Universal joints, 78
Vane pass frequency, 15
Index 295
Variable speed, 98, 208, 219, 231
V-belts, 80, 173
Velocity, 19, 22, 29, 51, 54

analysis, 8
monitoring, 3
profile, 13, 16, 21
severity, 22, 63, 109, 110, 130
signature, 11, 15, 21, 63, 138
sources, 16
damping, 30
Waterfall analysis, 182, 220, 255
Waveform. See Time domain
Zero-to-peak, 22, 24
Zoom analysis, 265