Dynamics of rotors and foundations:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin u.a.
Springer
1993
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Literaturverz. S. 372 - 379 |
| Beschreibung: | XII, 383 S. graph. Darst. |
| ISBN: | 3540557253 0387557253 |
Internformat
MARC
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| 100 | 1 | |a Krämer, Erwin |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Dynamics of rotors and foundations |c Erwin Krämer |
| 264 | 1 | |a Berlin u.a. |b Springer |c 1993 | |
| 300 | |a XII, 383 S. |b graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
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| 500 | |a Literaturverz. S. 372 - 379 | ||
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Datensatz im Suchindex
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|---|---|
| adam_text | Table of Contents
I Fundamentals 1
1 Introduction 3
2 The one Degree of Freedom System 7
2 1 Equation of Motion 7
2 2 Natural Vibration 8
2 3 Harmonic Excitation 11
2 4 Random Excitation 17
3 Shaft with Central Disc 19
3 1 Shaft with Rigid Bearings, Jeffcott Rotor 19
3 2 Startup, Run Down 24
3 3 Jeffcott Rotor with Flexible Bearings 29
3 4 Jeffcott Rotor with Bearing Damping 33
4 Shaft with Non Centred Disc 37
4 1 Equations of Motion 37
4 2 Natural Vibrations 41
4 3 Unbalance Vibrations 52
4 4 Harmonic Excitation in one Direction 56
4 5 Shaft with Flexible Bearings 59
5 The Short and the Long Rotor 65
5 1 Unbalance Moment 66
5 2 Natural Frequencies 68
5 3 Unbalance Vibrations 71
6 Oil-Film Bearings 77
6 1 Hydrodynamic Bearing Theory 77
6 2 Short Bearing Theory 83
6 3 Static and Dynamic Properties 89
7 Rotors with Oil-film Bearings 97
7 1 Equations of Motion 97
7 2 Stability 99
721 Rigid Rotor 99
722 The Jeffcott Rotor 104
7 3 Unbalance Vibrations 108
7 4 Summary 113
8 Vertical Rotors 115
8 1 Tilt-pad Bearings 115
8 2 Vibrations 123
9 Rolling-element Bearings 129
9 1 Deformation of the Rolling-element 130
9 2 Stiffness of Rolling-element Bearings 132
9 3 Lateral Stiffness, Critical Speeds 135
9 4 Consequences of Element Rotation 138
9 5 Damping of Rolling-element Bearings 140
10 Shaft Seals 143
10 1 Restoring Force 144
10 2 Jeffcott Rotor with Seals 146
10 3 Smooth Seals 152
10 4 Labyrinth Seals 156
10 5 Floating Ring Seals 157
11 Steam Whirl 161
11 1 The Steam Whirl Force 161
11 2 Jeffcott Rotor with Steam Whirl 164
12 Internal Damping 169
12 1 Jeffcott Rotor with Internal Viscous Damping 169
12 2 Damping due to the Shaft Material 174
12 3 Damping from Assembly Components 177
12 4 Conclusion and an Example 184
13 Non-circular Sharfts 191
13 1 Non-circular Jeffcott Rotor 192
13 2 Supplementary Comments 199
II Rotors with Several Bearings 201
14 Computer Model 205
15 Influence Coefficients 207
X Table of Contents
Table of Contents XI
16 Equation of Motion 211
16 1 Statics 211
16 2 Dynamics 217
16 2 1 Rigid Masses 217
16 2 2 Beam Element 221
16 2 3 Flexible Couplings 224
16 2 4 Bearing Supports 227
16 2 5 Shaft Seals, Steam Whirl 228
16 3 Reduction in the Number of Coordinates 228
16 4 Discussion of the Equation of Motion 230
17 Results 233
17 1 General Discussion of Natural Vibrations 233
17 2 Rotors with two Bearings 236
17 3 Rotors with Several Bearings 247
18 Static Bearing Loads 255
III Rotor-foundation Coupling 257
19 Foundation 261
19 1 Calculations 262
19 1 1 Ground Dynamics 262
19 1 2 Rigid Foundation Block 266
19 1 3 Flexible Foundation 269
19 2 Results 277
19 2 1 Rigid Foundation 277
19 2 2 Frame Foundation 283
19 2 3 Table Foundation 283
19 2 4 Spring Foundation 287
19 2 5 Reinforced Concrete and Steel 287
20 Rotor and Foundation 293
20 1 Calculations 294
20 2 Results 296
20 2 1 Small Machine Sets with Frame Foundations 298
20 2 2 Large Turbine Sets 305
20 2 3 Conclusion 311
IV Further Features 315
21 Rough Calculations 317
21 1 Natural Frequencies and Critical Speeds 317
XII Table of Contents
21 2 Resonance Amplitudes 322
22 Bending Stresses in Rotors 325
23 Cracked Rotors 329
23 1 Vibrations of a Rotor with a Transverse Crack 329
23 1 1 Jeffcott Rotor 329
23 1 2 General Rotor 334
23 1 3 Results 335
23 2 Cue Studies 342
23 3 Summary 345
24 Solution of the Equation of Motion 349
24 1 Homogeneous Equation, Naturad Frequencies 349
24 2 Harmonic Excitation 353
24 3 General Excitation 353
24 4 Modal Method of Calculation 353
24 4 1 Symmetric Matrices 354
24 4 2 Harmonic Excitation 356
24 4 3 Reduced Modal Calculation 358
24 4 4 Transfer Function 360
24 4 5 Unsymmetric Matrices 360
5 Rayleigh Quotient 362
HADYN 365
sw 365
the Model 367
ue Algorithm 368
|
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| dewey-search | 621.811 621.8 |
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| discipline | Maschinenbau / Maschinenwesen Maschinenbau |
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| id | DE-604.BV008215490 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T17:16:29Z |
| institution | BVB |
| isbn | 3540557253 0387557253 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-005423134 |
| oclc_num | 299751994 |
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| physical | XII, 383 S. graph. Darst. |
| publishDate | 1993 |
| publishDateSearch | 1993 |
| publishDateSort | 1993 |
| publisher | Springer |
| record_format | marc |
| spelling | Krämer, Erwin Verfasser aut Dynamics of rotors and foundations Erwin Krämer Berlin u.a. Springer 1993 XII, 383 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Literaturverz. S. 372 - 379 Rotordynamik - Maschinenfundament Rotordynamik (DE-588)4178546-0 gnd rswk-swf Maschinenfundament (DE-588)4169006-0 gnd rswk-swf Rotordynamik (DE-588)4178546-0 s Maschinenfundament (DE-588)4169006-0 s DE-604 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005423134&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Krämer, Erwin Dynamics of rotors and foundations Rotordynamik - Maschinenfundament Rotordynamik (DE-588)4178546-0 gnd Maschinenfundament (DE-588)4169006-0 gnd |
| subject_GND | (DE-588)4178546-0 (DE-588)4169006-0 |
| title | Dynamics of rotors and foundations |
| title_auth | Dynamics of rotors and foundations |
| title_exact_search | Dynamics of rotors and foundations |
| title_full | Dynamics of rotors and foundations Erwin Krämer |
| title_fullStr | Dynamics of rotors and foundations Erwin Krämer |
| title_full_unstemmed | Dynamics of rotors and foundations Erwin Krämer |
| title_short | Dynamics of rotors and foundations |
| title_sort | dynamics of rotors and foundations |
| topic | Rotordynamik - Maschinenfundament Rotordynamik (DE-588)4178546-0 gnd Maschinenfundament (DE-588)4169006-0 gnd |
| topic_facet | Rotordynamik - Maschinenfundament Rotordynamik Maschinenfundament |
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