非线性振动理论导引(英文版) 出版时间:2015年版 内容简介 奈考尔金的《非线性振动理论导引(英文版)(精) 》is devoted to the theory of nonlinear oscillations. Under consideration is a wide range of oscillations, including free oscillations, self-exciting oscillations, driven oscillations and parametric oscillations. Described are the methods to study existence and stability of these oscillations. Systematically represented is the theory of bifurcations for one- dimensional and two-dimensional dynamical systems, which is in the base of these methods. At the foundation of the new book are lectures on a general course in the theory of oscillations, which were taught by the author for more than twenty years at the Faculty of Radiophysics of Nizhny Novgorod State University,Russia. 目录 Preface 1 Introduction to the Theory of Oscillations 1.1 General Features of the Theory of Oscillations 1.2 Dynamical Systems 1.2.1 Types of Trajectories 1.2.2 Dynamical Systems with Continuous Time 1.2.3 Dynamical Systems with Discrete Time 1.2.4 Dissipative Dynamical Systems 1.3 Attractors 1.4 Structural Stability of Dynamical Systems 1.5 Control Questions and Exercises 2 One-Dimensional Dynamics 2.1 Qualitative Approach 2.2 Rough Equilibria 2.3 Bifurcations of Equilibria 2.3.1 Saddle-node Bifurcation 2.3.2 The Concept of the Normal Form 2.3.3 Transcritical Bifurcation 2.3.4 Pitchfork Bifurcation 2.4 Systems on the Circle 2.5 Control Questions and Exercises 3 Stability of Equilibria.A Classification of Equilibria of Two-Dimensional Linear Systems 3.1 Definition of the Stability of Equilibria 3.2 Classification of Equilibria of Linear Systems on the Plane 3.2.1 Real Roots 3.2.1.1 Roots λ1 and λ2 of the Same Sign 3.2.1.2 The Roots λ1 and λ2 with Different Signs 3.2.1.3 The Roots λ1 and λ2 are Multiples of λ1=λ2=λ 3.2.2 Complex Roots 3.2.3 Oscillations of two-dimensionallinear systems 3.2.4 Two-parameter Bifurcation Diagram 3.3 Control Questions and Exercises 4 Analysis of the Stability of Equilibria of Multidimensional Nonlinear Systems 4.1 Linearization Method 4.2 The Routh-Hurwitz Stability Criterion 4.3 The Second Lyapunov Method 4.4 Hyperbolic Equilibria of Three-Dimensional Systems 4.4.1 Real Roots 4.4.1.1 Roots λi of One Sign 4.4.1.2 Roots λi of Different Signs 4.4.2 Complex Roots 4.4.2.1 Real Parts of the Roots λi of One Sign 4.4.2.2 Real Parts of Roots λi of Different Signs 4.4.3 The Equilibria of Ihree-Dimensional Nonlinear Systems 4.4.4 Two-Parameter Bifurcation Diagram 4.5 Control Questions and Exercises 5 Linear and Nonlinear Oscillators 5.1 The Dynamics of a Linear Oscillator 5.1.1 Harmonic Oscillator 5.1.2 Linear Oscillator with Losses 5.1.3 Linear Oscillator with Negative Damping 5.2 Dynamics of a Nonlinear Oscillator 5.2.1 Conservative Nonlinear Oscillator 5.2.2 Nonlinear Oscillator with Dissipation 5.3 Control Questions and Exercises 6 Basic Properties of Maps 6.1 Point Maps as Models of Discrete Systems 6.2 Poincare Map 6.3 Fixed Points 6.4 One-PDimensional Linear Maps 6.5 Two-Dimensional Linear Maps 6.5.1 Real Multipliers 6.5.1.1 The Stable Node Fixed Point 6.5.1.2 The Unstable Node Fixed Point 6.5.1.3 The Saddle Fixed Point 6.5.2 Complex MultiDliers 6.6 One-Dimensional Nonlinear Maps: Some Notions and Examples 6.7 Control Questions and Exercises 7 Limit Cycles 7.1 Isolated and Nonisolated Periodic Trajectories.Definition of a Limit Cycle 7.2 Orbital Stability.Stable and Unstable Limit Cycles 7.2.1 Definition of Orbital Stability 7.2.2 Characteristics of Limit Cycles 7.3 Rotational and Librational Limit Cycles 7.4 Rough Limit Cycles in Three-Dimensional Space 7.5 The Bendixson- Dulac Criterion 7.6 Control Questions and Exercises 8 Basic Bifurcations of Equilibria in the Plane 8.1 Bifurcation Conditions 8.2 Saddle-Node Bifurcation 8.3 The Andronov-Hopf Bifurcation 8.3.1 The First Lyapunov Coefficient is Negative 8.3.2 The First Lyapunov Coefficient is Positive 8.3.3 Soft and Hard Generation of Periodic Oscillations 8.4 Stability Loss Delay for the Dynamic Andronov- Hopf Bifurcation 8.5 Control Questions and Exercises 9 Bifurcations of Limit Cycles.Saddle Homoclinic Bifurcation 9.1 Saddle-node Bifurcation of Limit Cycles 9.2 Saddle Homoclinic Bifurcation 9. 2.1 Map in the Vicinity of the Homoclinic Trajectory 9. 2.2 Librational and Rotational Homoclinic Trajectories 9.3 Control Questions and Exercises 10 The Saddle-Node Homoclinic Bifurcation.Dynamics of Slow-Fast Systems in the Plane 10.1 Homoclinic Trajectory 10.2 Final Remarks on Bifurcations of Systems in the Plane 10.3 Dynamics of a Slow-Fast System 10.3.1 Slow and Fast Motions 10.3.2 Systems with a Single Relaxation 10.3.3 Relaxational Oscillations 10.4 Control Questions and Exercises 11 Dynamics of a Superconducting Josephson Junction 11.1 Stationary and Nonstationary Effects 11.2 Equivalent Circuit of the Junction 11.3 Dynamics of the Model 11.3.1 Conservative Case 11.3.2 Dissipative Case 11.3.2.1 Absorbing Domain 11.3.2.2 Equilibria and Their Local Properties 11.3.2.3 The Lyapunov Function 11.3.2.4 Contactless Curves and Control Channels for Separatrices 11.3.2.5 Homoclinic Orbits and Their Bifurcations 11.3.2.6 Limit Cycles and the Bifurcation Diagram 11.3.2.7 I-V Curve of the Junction 11.4 Control Questions and Exercises 12 The Van der Pol Method.Self-Sustained Oscillations and Truncated Systems 12.1 The Notion of Asymptotic Methods 12.1.1 Reducing the System to the General Form 12.1.2 Averaged (Truncated) System 12.1.3 Averaging and Structurally Stable Phase Portraits 12.2 Self-Sustained Oscillations and Self-Oscillatory Systems 12.2.1 Dynamics of the Simplest Model of a Pendulum Clock 12.2.2 Self-Sustained Oscillations in the System with an Active Element 12.3 Control Questions and Exercises 13 Forced Oscillations of a Linear Oscillator 13.1 Dynamics of the System and the Global Poincare Map 13.2 Resonance Curve 13.3 Control Questions and Exercises 14 Forced Oscillations in Weakly Nonlinear Systems with One Degree of Freedom 14.1 Reduction of a System to the Standard Form 14.2 Resonance in a Nonlinear Oscillator 14.2.1 Dynamics of the System of Truncated Equations 14.2.2 Forced Oscillations and Resonance Curves 14.3 Forced Oscillation Regime 14.4 Control Questions and Exercises 15 Forced Synchronization of a Self-Oscillatory System with a Periodic External Force 15.1 Dynamics of a Truncated System 15.1.1 Dynamics in the Absence of Detuning 15.1.2 Dynamics with Detuning 15.2 The Poincare Map and Synchronous Regime 15.3 Amplitude- Frequency Characteristic 15.4 Control Questions and Exercises 16 Parametric Oscillations 16.1 The Floquet Theory 16.1.1 General Solution 16.1.2 Period Map 16.1.3 Stability of Zero Solution 16.2 Basic Regimes of Linear Parametric Systems 16.2.1 Parametric Oscillations and Parametric Resonance 16.2.2 Parametric Oscillations of a Pendulum 16.2.2.1 Pendulum Oscillations in the Conservative Case 16.2.2.2 Pendulum Oscillations with the Losses Taken into Account 16.3 Pendulum Dynamics with a Vibrating Suspension Point 16.4 Oscillations of a Linear Oscillator with Slowly Variable Frequency 17 Answers to Selected Exercises Bibliography Index
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