| Description |
1 online resource : illustrations (some color) |
| Series |
Applied condition monitoring ; volume 11 |
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Applied condition monitoring ; v. 11
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| Contents |
Intro; Preface I; Preface II; Acknowledgements I; Acknowledgements II; Contents; 1 Basics of Rotor and Structural Vibration; 1.1 Introduction; 1.2 General; 1.3 Fundamentals of Rotor Dynamics in Turbo-Machinery; 1.4 Why Rotor Dynamics Plays a Vital Role in Rotating Machinery Design?; 1.5 Rotor Failure Modes; 1.5.1 Torsional Vibration (Due to Rotor Twist). See Fig. Â 1.5; 1.5.2 Lateral Vibration (Due to of Rotor Bending). See Fig. Â 1.6; 1.6 Rotor Dynamics Versus Stationary Structural Dynamics; 1.6.1 Structural Vibration Versus Rotor Whirl |
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1.6.2 Structural Natural Frequencies Versus Rotor Critical Speeds1.6.3 Structural Mode Shapes Versus Rotor Whirl Motions; 1.6.4 Structural Responses Versus Rotor Whirl Responses; 1.6.5 Structural Excitation Versus Rotor Excitation Forces; 1.6.6 Stability of Structures Versus Rotor Stability; 1.7 Examples; 1.7.1 Example-1; 1.7.2 Example-2; 1.7.3 Example-3; 1.7.4 Example-4; 1.8 Fluid-Film Stiffness; 1.9 Forward and Backward Rotor Whirl Vectors; 1.9.1 Split Critical Speeds of a Rotor; 1.9.2 Construction of Whirl Plots; 1.10 Closure; References; 2 Mathematical Model; 2.1 Introduction; 2.2 General |
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2.3 Lateral (Bending) Rotor Dynamic Model2.3.1 The Rotor Modeling; 2.3.2 The Fluid-Film Bearing Modeling; 2.3.3 Bearing Support Pedestal Modeling; 2.3.4 Concrete Foundation Modeling; 2.3.5 Steel Foundation Structures; 2.4 Solution Methods; 2.4.1 Transfer Matrix (TM) Approach; 2.4.2 Two Dimensional Finite Element Formulation; 2.4.3 Gyroscopic Effect in Rotor Systems; 2.4.4 Asymmetric Stiffness Effects in Rotor Systems; 2.5 Advanced Rotor Modeling Methods; 2.5.1 Lateral Rotor Model; 2.5.2 Mode-Frequency Analysis or Modal Analysis on Rigid Supports; 2.5.3 Unbalance Response Calculations |
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2.5.4 Q-Factor Evaluation2.5.4.1 An Important Note About Q-Factor Evaluations; 2.5.5 Rotor Stability Calculations; 2.6 Various Rotor Constructions; 2.6.1 Mono-Bloc Rotor; 2.6.2 Shrunk-on Disc Rotor; 2.6.3 Welded Rotor; 2.7 Rotor Mechanics; 2.8 Torsional (Twist) Rotor Dynamics; 2.8.1 Lumped Mass Model; 2.8.2 Blade and Rotor Disc Frequency Coupling; 2.8.3 Three-D Finite Element Model of a Bladed-Disc; 2.8.4 Effects of Blade-Disc Coupling on Lateral Dynamics; 2.8.5 Rotor Torsional Model; 2.8.6 Three-D Torsional Modeling of Rotors; 2.8.7 Modal Analysis; 2.8.8 Steady-State Excitations |
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2.8.9 Positive and Negative Sequence Currents2.8.10 Transient Excitations; 2.8.11 Loss of Life Calculations; 2.8.12 Out-of Phase Synchronization (OPS); 2.8.12.1 Sudden Impulse or Repetitive Industrial Loads Near Power Plants' ;Excites Sub-synchronous Modes; Line Switching and Resonance Due to Series Capacitor Compensated Transmission- Excites Sub-synchronous Modes; 2.8.13 Sub-synchronous Excitations; 2.8.14 Impact on Shaft Torque Due to Grid Events; 2.9 Testing for Torsional Frequencies and Modes; 2.9.1 Stationary Frequency Testing; 2.9.2 Rotating Tests; 2.10 Closure; References |
| Summary |
This book provides engineers and scientists with practical fundamentals for turbomachinery design. It presents a detailed analysis of existing procedures for the analysis of rotor and structure dynamics, while keeping mathematical equations to a minimum. Specific terminologies are used for rotors and structures, respectively, allowing the readers to clearly distinguish between the two. Further, the book describes the essential concepts needed to understand rotor failure modes due to lateral and torsional oscillations. It guides the reader from simple single-degree-of-freedom models to the most complex multi-degree-of-freedom systems, and provides useful information concerning steel pedestal stiffness degradation and other structural issues. Fluid-film bearing types and their dynamical behavior are extensively covered and discussed in the context of various turbomachinery applications. The book also discusses shaft alignment and rotor balancing from a practical point of view, providing readers with essential information to help them solve practical problems. As the main body of the book focuses on the diagnostics and description of case studies addressing the most pressing practical issues, together with their successful solutions, it offers a valuable reference guide, helping field engineers manage day-to-day issues with turbomachinery |
| Bibliography |
Includes bibliographical references |
| Notes |
Vendor-supplied metadata |
| Subject |
Turbomachines.
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Impellers.
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Dynamics & vibration.
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Reliability engineering.
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Engines & power transmission.
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TECHNOLOGY & ENGINEERING -- Mechanical.
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Impellers
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Turbomachines
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| Form |
Electronic book
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| Author |
Littleton, Jeremy Eli, author
|
| ISBN |
9783319732961 |
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331973296X |
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