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Bearing dynamic coefficients in rotordynamics : computation methods and practical applications / / Łukasz Breńkacz
Bearing dynamic coefficients in rotordynamics : computation methods and practical applications / / Łukasz Breńkacz
Autore Breńkacz Łukasz
Pubbl/distr/stampa Hoboken, New Jersey : , : Wiley, , [2021]
Descrizione fisica 1 online resource (189 pages)
Disciplina 621.82
Collana Wiley-ASME Press Ser.
Soggetto topico Rotors - Dynamics
Soggetto genere / forma Electronic books.
ISBN 1-119-75924-2
1-119-75928-5
1-119-75917-X
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Cover -- Title Page -- Copyright Page -- Contents -- List of Figures -- List of Tables -- Preface -- Symbols and Abbreviations -- About the Companion Website -- Chapter 1 Introduction -- 1.1 Current State of Knowledge -- 1.2 Review of the Literature on Numerical Determination of Dynamic Coefficients of Bearings -- 1.3 Review of the Literature on Experimental Determination of Dynamic Coefficients of Bearings -- 1.4 Purpose and Scope of the Work -- Chapter 2 Practical Applications of Bearing Dynamic Coefficients -- 2.1 Single Degree of Freedom System Oscillations -- 2.1.1 Constant excitation Force -- 2.1.2 Excitation by Unbalance -- 2.1.3 Impact of Damping and Stiffness -- 2.2 Oscillation of Mass with Two Degrees of Freedom -- 2.3 Cross-Coupled Stiffness and Damping Coefficients -- 2.4 Summary -- Chapter 3 Characteristics of the Research Subject -- 3.1 Basic Technical Data of the Laboratory Test Rig -- 3.2 Analysis of Rotor Dynamics -- 3.3 Analysis of the Supporting Structure -- 3.4 Summary -- Chapter 4 Research Tools -- 4.1 Test Equipment -- 4.2 Test.Lab Software -- 4.3 Samcef Rotors Software -- 4.4 Matlab Software -- 4.5 MESWIR Series Software (KINWIR, LDW, NLDW) -- 4.6 Abaqus Software -- Chapter 5 Algorithms for the Experimental Determination of Dynamic Coefficients of Bearings -- 5.1 Development of the Calculation Algorithm -- 5.2 Verification of the Calculation Algorithm on the Basis of a Numerical Model -- 5.3 Results of Calculations of Dynamic Coefficients of Bearings -- 5.4 Summary -- Chapter 6 Inclusion of the Impact of an Unbalanced Rotor -- 6.1 Calculation Scheme -- 6.2 Definition of the Scope of Identification -- 6.3 Results of the Calculation of Dynamic Coefficients of Bearings Including Rotor Unbalance -- 6.4 Summary -- Chapter 7 Sensitivity Analysis of the Experimental Method of Determining Dynamic Coefficients of Bearings.
7.1 Method of Carrying Out a Sensitivity Analysis -- 7.2 Description of the Reference Model -- 7.3 Influence of the Stiffness of the Rotor Material -- 7.4 Influence of Uneven Force Distribution on Two Bearings -- 7.5 Changing the Direction of the Excitation Force and its Effect on the Results Obtained -- 7.6 Eddy Current Sensor Displacement Impact Assessment -- 7.7 Calculation Results for an Asymmetrical Rotor -- 7.8 Summary -- Chapter 8 Experimental Studies -- 8.1 Software Used for Processing of Signals from Experimental Research -- 8.2 Software Used for Calculations of Dynamic Coefficients of Bearings -- 8.3 Preparation of Experimental Tests -- 8.4 Implementation of Experimental Research -- 8.5 Processing of the Signal Measured During Experimental Tests -- 8.6 Results of Calculations of Dynamic Coefficients of Hydrodynamic Bearings on the Basis of Experimental Research -- 8.7 Verification of Results Obtained -- 8.8 Summary -- Chapter 9 Numerical Calculations of Bearing Dynamic Coefficients -- 9.1 Method of Calculating Dynamic Coefficients of Bearings -- 9.2 Calculation of Dynamic Coefficients of Bearings Using a Method with Linear Calculation Algorithm -- 9.3 Calculation of Dynamic Coefficients of Bearings Using a Method with Non-linear Calculation Algorithm -- 9.4 Verification of Results Obtained -- 9.5 Summary -- Chapter 10 Comparison of Bearing Dynamic Coefficients Calculated with Different Methods -- Chapter 11 Summary and Conclusions -- Appendix A -- A.1 Fast Fourier Transform Diagrams of Journal Displacement in Relation to Bearing Housings -- A.2 Journal Vibration Trajectories in Relation to Bearing Housings -- A.3 Acceleration of Vibrations of Bearing Supports during Start-up -- A.4 Rotor Axial Alignment Report -- Appendix B -- B.1 Fragments of Code of the Program Used for Processing the Signal from Experimental Tests -- Appendix C.
C.1 Journal Vibration Trajectories Calculated in KINWIR and LDW Software -- C.2 Journal Vibration Trajectories Calculated in NLDW Software -- Research Funding -- References -- Index -- EULA.
Record Nr. UNINA-9910555134003321
Breńkacz Łukasz  
Hoboken, New Jersey : , : Wiley, , [2021]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Bearing dynamic coefficients in rotordynamics : computation methods and practical applications / / Łukasz Breńkacz
Bearing dynamic coefficients in rotordynamics : computation methods and practical applications / / Łukasz Breńkacz
Autore Breńkacz Łukasz
Pubbl/distr/stampa Hoboken, New Jersey : , : Wiley, , [2021]
Descrizione fisica 1 online resource (189 pages)
Disciplina 621.82
Collana Wiley-ASME Press
Soggetto topico Rotors - Dynamics
ISBN 1-5231-5513-2
1-119-75924-2
1-119-75928-5
1-119-75917-X
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Cover -- Title Page -- Copyright Page -- Contents -- List of Figures -- List of Tables -- Preface -- Symbols and Abbreviations -- About the Companion Website -- Chapter 1 Introduction -- 1.1 Current State of Knowledge -- 1.2 Review of the Literature on Numerical Determination of Dynamic Coefficients of Bearings -- 1.3 Review of the Literature on Experimental Determination of Dynamic Coefficients of Bearings -- 1.4 Purpose and Scope of the Work -- Chapter 2 Practical Applications of Bearing Dynamic Coefficients -- 2.1 Single Degree of Freedom System Oscillations -- 2.1.1 Constant excitation Force -- 2.1.2 Excitation by Unbalance -- 2.1.3 Impact of Damping and Stiffness -- 2.2 Oscillation of Mass with Two Degrees of Freedom -- 2.3 Cross-Coupled Stiffness and Damping Coefficients -- 2.4 Summary -- Chapter 3 Characteristics of the Research Subject -- 3.1 Basic Technical Data of the Laboratory Test Rig -- 3.2 Analysis of Rotor Dynamics -- 3.3 Analysis of the Supporting Structure -- 3.4 Summary -- Chapter 4 Research Tools -- 4.1 Test Equipment -- 4.2 Test.Lab Software -- 4.3 Samcef Rotors Software -- 4.4 Matlab Software -- 4.5 MESWIR Series Software (KINWIR, LDW, NLDW) -- 4.6 Abaqus Software -- Chapter 5 Algorithms for the Experimental Determination of Dynamic Coefficients of Bearings -- 5.1 Development of the Calculation Algorithm -- 5.2 Verification of the Calculation Algorithm on the Basis of a Numerical Model -- 5.3 Results of Calculations of Dynamic Coefficients of Bearings -- 5.4 Summary -- Chapter 6 Inclusion of the Impact of an Unbalanced Rotor -- 6.1 Calculation Scheme -- 6.2 Definition of the Scope of Identification -- 6.3 Results of the Calculation of Dynamic Coefficients of Bearings Including Rotor Unbalance -- 6.4 Summary -- Chapter 7 Sensitivity Analysis of the Experimental Method of Determining Dynamic Coefficients of Bearings.
7.1 Method of Carrying Out a Sensitivity Analysis -- 7.2 Description of the Reference Model -- 7.3 Influence of the Stiffness of the Rotor Material -- 7.4 Influence of Uneven Force Distribution on Two Bearings -- 7.5 Changing the Direction of the Excitation Force and its Effect on the Results Obtained -- 7.6 Eddy Current Sensor Displacement Impact Assessment -- 7.7 Calculation Results for an Asymmetrical Rotor -- 7.8 Summary -- Chapter 8 Experimental Studies -- 8.1 Software Used for Processing of Signals from Experimental Research -- 8.2 Software Used for Calculations of Dynamic Coefficients of Bearings -- 8.3 Preparation of Experimental Tests -- 8.4 Implementation of Experimental Research -- 8.5 Processing of the Signal Measured During Experimental Tests -- 8.6 Results of Calculations of Dynamic Coefficients of Hydrodynamic Bearings on the Basis of Experimental Research -- 8.7 Verification of Results Obtained -- 8.8 Summary -- Chapter 9 Numerical Calculations of Bearing Dynamic Coefficients -- 9.1 Method of Calculating Dynamic Coefficients of Bearings -- 9.2 Calculation of Dynamic Coefficients of Bearings Using a Method with Linear Calculation Algorithm -- 9.3 Calculation of Dynamic Coefficients of Bearings Using a Method with Non-linear Calculation Algorithm -- 9.4 Verification of Results Obtained -- 9.5 Summary -- Chapter 10 Comparison of Bearing Dynamic Coefficients Calculated with Different Methods -- Chapter 11 Summary and Conclusions -- Appendix A -- A.1 Fast Fourier Transform Diagrams of Journal Displacement in Relation to Bearing Housings -- A.2 Journal Vibration Trajectories in Relation to Bearing Housings -- A.3 Acceleration of Vibrations of Bearing Supports during Start-up -- A.4 Rotor Axial Alignment Report -- Appendix B -- B.1 Fragments of Code of the Program Used for Processing the Signal from Experimental Tests -- Appendix C.
C.1 Journal Vibration Trajectories Calculated in KINWIR and LDW Software -- C.2 Journal Vibration Trajectories Calculated in NLDW Software -- Research Funding -- References -- Index -- EULA.
Record Nr. UNINA-9910830773803321
Breńkacz Łukasz  
Hoboken, New Jersey : , : Wiley, , [2021]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui