清华大学学术专著 自激振动 理论、范例及研究方法 英文版
作者：丁文镜 著
出版时间：2011年版
内容简介
《自激振动：理论、范例及研究方法（英文图书）》试图揭示一切自激振动共同的形成机制，同时建立分析研究它的统一程序，从而形成这门横向分支学科的理论体系。全书共分11章，全面论述自激振动及其系统的本质特征；介绍分析研究自激振动数学模型应用的各种数学方法；介绍工程中典型的和重要的自激振动——从建立数学模型开始，通过分析研究，揭示其成因和影响因素，并指出有效的控制方法；通过归纳分析许多具体自激振动现象的实践经验，总结出自激振动现象的共同的成因机制和统一的建模分析程序。《自激振动：理论、范例及研究方法（英文图书）》可作为力学教师和相关专业研究生的教学和科研参考书，也可作为各类工程（如航天航空、军工、机械、车辆、化工、土建）技术人员的研究参考书。
目录
chapter 1 introduction
1.1 main features of self-excited vibration
1.1.1 natural vibration in conservative systems
1.1.2 forced vibration under periodic excitations
1.1.3 parametric vibration
1.1.4 self-excited vibration
1.2 conversion between forced vibration and self-excitedvibration
1.3 excitation mechanisms of self-excited vibration
1.3.1 energy mechanism
1.3.2 feedback mechanism
1.4 a classification of self-excited vibration systems
1.4.1 discrete system
1.4.2 continuous system
1.4.3 hybrid system
1.5 outline of the book
references
chapter 2 geometrical method
2.1 structure of phase plane
2.2 phase diagrams of conservative systems
2.2.1 phase diagram of a simple pendulum
2.2.2 phase diagram of a conservative system
2.3 phase diagrams of nonconservative systems
2.3.1 phase diagram of damped linear vibrator
2.3.2 phase diagram of damped nonlinear vibrator
2.4 classification of equilibrium points of dynamic systems
2.4.1 linear approximation at equilibrium point
2.4.2 classification of equilibrium points
2.4.3 transition between types of equilibrium points
2.5 the existence of limit cycle of an autonomous system
2.5.1 the index of a closed curve with respect to vectorfield
2.5.2 theorems about the index of equilibrium point
2.5.3 the index of equilibrium point and limit cycle
2.5.4 the existence of a limit cycle
2.6 soft excitation and hard excitation of self-excitedvibration
2.6.1 definition of stability of limit cycle
2.6.2 companion relations
2.6.3 soft excitation and hard excitation
2.7 self-excited vibration in strongly nonlinear systems
2.7.1 waveforms of self-excited vibration
2.7.2 relaxation vibration
2.7.3 self-excited vibration in a non-smooth dynamicsystem.
2.8 mapping method and its application
2.8.1 poincare map
2.8.2 piecewise linear system
2.8.3 application of the mapping method
references
chapter 3 stability methods
3.1 stability of equilibrium position
3.1.1 equilibrium position of autonomous system
3.1.2 first approximation equation of a nonlinear autonomoussystem
3.1.3 definition of stability of equilibrium position
3.1.4 first approximation theorem of stability of equilibriumposition
3.2 an algebraic criterion for stability of equilibriumposition
3.2.1 eigenvalues of linear ordinary differential equations
3.2.2 distribution of eigenvalues of a asymptotic stablesystem
3.2.3 hurwitz criterion
3.3 a geometric criterion for stability of equilibriumposition
3.3.1 hodograph of complex vector d(ico)
3.3.2 argument of hodograph of complex vector d(ico)
3.3.3 geometric criterion for stability of equilibriumposition
3.3.4 coefficient condition corresponding to the second type ofcritical stability
3.4 parameter condition for stability of equilibriumposition
3.4.1 stable region in coefficient space
3.4.2 stable region in parameter space
3.4.3 parameter perturbation on the boundaries of stableregion.
3.5 a quadratic form criterion for stability of equilibriumposition
3.5.1 linear equations of motion of holonomic system
3.5.2 quadratic form of eigenvectors of a holonomic system
3.5.3 quadratic form criterion for a holonomic system
3.5.4 influence of circulatory force on stability of equilibriumposition
references
chapter 4 quantitative methods
4.1 center manifold
4.1.1 concept of flow
4.1.2 hartman-grobman theorem
4.1.3 center manifold theorem
4.1.4 equation of center manifold
4.2 hopf bifurcation method
4.2.1 poincare-birkhoffnormal form
4.2.2 poincare-andronov-hopfbifurcation theorem
4.2.3 hopf bifurcation method
4.3 lindstedt-poincare method
4.3.1 formulation of equations
4.3.2 periodic solution of the van der poi equation
4.4 an averaging method of second-order autonomous system
4.4.1 formulation of equations
4.4.2 periodic solution of rayleigh equation
4.5 method of multiple scales for a second-order autonomoussystem
4.5.1 formulation of equation system
4.5.2 formulation of periodic solution
4.5.3 periodic solution of van der pol equation
references
chapter 5 analysis method for closed-loop system
5.1 mathematical model in frequency domain
5.1.1 concepts related to the closed-loop system
5.1.2 typical components
5.1.3 laplace transformation
5.1.4 transfer function
5.1.5 block diagram of closed-loop systems
5.2 nyquist criterion
5.2.1 frequency response
5.2.2 nyquist criterion
5.2.3 application of nyquist criterion
5.3 a frequency criterion for absolute stability of a nonlinearclosed-loop system
5.3.1 absolute stability
5.3.2 block diagram model of nonlinear closed-loop systems
5.3.3 popov theorems
5.3.4 application of popov theorem
5.4 describing function method
5.4.1 basic principle
5.4.2 describing function
5.4.3 amplitude and frequency of self-excited vibration
5.4.4 stability of self-excited vibration
5.4.5 application of describing function method
5.5 quadratic optimal control
5.5.1 quadratic optimal state control
5.5.2 optimal output control
5.5.3 application of quadratic optimal control
references
chapter 6 stick-slip vibration
6.1 mathematical description of friction force
6.1.1 physical background of friction force
6.1.2 three kinds of mathematical description of frictionforce
6.2 stick-slip motion
6.2.1 a simple model for studying stick-slip motion
6.2.2 non-smooth limit cycle caused by friction
6.2.3 first type of excitation effects for stick-slipmotion
6.3 hunting in flexible transmission devices
6.3.1 a mechanical model and its equation of motion
6.3.2 phase path equations in various stages
of hunting motion
6.3.3 topological structure of the phase diagram
6.3.4 critical parameter equation for the occurrence ofhunting
6.4 asymmetric dynamic coupling caused by friction force
6.4.1 mechanical model and equations of motion
6.4.2 stability of constant velocity motion of dynamicsystem
6.4.3 second type of excitation effect for stick-slipmotion
references
chapter 7 dynamie shimmy of front wheel
7.1 physical background of tire force
7.1.1 tire force
7.1.2 cornering force
7.1.3 analytical description of cornering force
7.1.4 linear model for cornering force
7.2 point contact theory
7.2.1 classification of point contact theory
7.2.2 nonholonomic constraint
7.2.3 potential energy of a rolling tire
7.3 dynamic shimmy of front wheel
7.3.1 isolated front wheel model
7.3.2 stability of front wheel under steady rolling
7.3.3 stable regions in parameter plane
7.3.4 influence of system parameters on dynamic shimmy of frontwheel
7.4 dynamic shimmy of front wheel coupled with vehicle
7.4.1 a simplified model of a front wheel system
7.4.2 mathematical model of the front wheel system
7.4.3 stability of steady rolling of the front wheel system
7.4.4 prevention of dynamic shimmy in design stage
references
chapter 8 rotor whirl
8.1 mechanical model of rotor in planar whiff
8.1.1 classification of rotor whirls
8.1.2 mechanical model of whirling rotor
8.2 fluid-film force
8.2.1 operating mechanism of hydrodynamic bearings
8.2.2 reynolds' equation
8.2.3 pressure distribution on journal surface
8.2.4 linearized fluid film force
8.2.5 concentrated parameter model of fluid film force
8.2.6 linear expressions of seal force
8.3 oil whirl and oil whip
8.3.1 hopfbifurcation leading to oil whirl of rotor
8.3.2 threshold speed and whiff frequency
8.3.3 influence of shaft elasticity on the oil whirl ofrotor
8.3.4 influence of external damping on oil whirl
8.3.5 oil whip
8.4 internal damping in deformed rotation shaft
8.4.1 physical background of internal force of rotationshaft
8.4.2 analytical expression of internal force of rotationshaft
8.4.3 three components of internal force of rotation shaft
8.5 rotor whirl excited by internal damping
8.5.1 a simple model of internal damping force of deformedrotating shaft
8.5.2 synchronous whirl of rotor with unbalance
8.5.3 supersynchronous whirl
8.6 cause and prevention of rotor whirl
8.6.1 structure of equation of motion
8.6.2 common causes of two kinds of rotor whirls
8.6.3 preventing the rotor from whirling
references
chapter 9 self-excited vibrations from interaction of structuresand fluid
9.1 vortex resonance in flexible structures
9.1.1 vortex shedding
9.1.2 predominate frequency
9.1.3 wake oscillator model
9.1.4 amplitude prediction
9.1.5 reduction of vortex resonance
9.2 flutter in cantilevered pipe conveying fluid
9.2.1 linear mathematical model
9.2.2 critical parameter condition
9.2.3 hopfbifurcation and critical flow velocity
9.2.4 excitation mechanism and prevention of flutter
9.3 classical flutter in two-dimensional airfoil
9.3.1 a continuous model of long wing
9.3.2 critical flow velocity of classical flutter
9.3.3 excitation mechanism of classical flutter
9.3.4 influence of parameters of the wing on critical speed ofclassical flutter
9.4 stall flutter in flexible structure
9.4.1 aerodynamic forces exciting stall flutter
9.4.2 a mathematical model of galloping in the flexiblestructure
9.4.3 critical speed and hysteresis phenomenon of galloping
9.4.4 some features of stall flutter and its preventionschemes
9.5 fluid-elastic instability in array of circular cylinders
9.5.1 fluid-elastic instability
9.5.2 fluid forces depending on motion of circularcylinders
9.5.3 analysis of flow-induced vibration
9.5.4 approximate expressions of critical flow velocity
9.5.5 prediction and prevention of fluid-elasticinstability
references
chapter 10 self-excited oscillations in feedback controlsystem
10.1 heating control system
10.1.1 operating principle of the heating control system
10.1.2 mathematical model of the heating control system
10.1.3 time history of temperature variation
10.1.4 stable limit cycle irrphase plane
10.1.5 amplitude and' frequency of room temperaturederivation
10.1.6 an excitation mechanism of self-excited oscillation
10.2 electrical position control system with hysteresis
10.2.1 principle diagram
10.2.2 equations of position control system with hysteresisnonlinearity
10.2.3 phase diagram and point mapping
10.2.4 existence of limit cycle
10.2.5 critical parameter condition
10.3 electrical position control system with hysteresis anddead-zone
10.3.1 equation of motion
10.3.2 phase diagram and point mapping
10.3.3 existence and stability of limit cycle
10.3.4 critical parameter condition
10.4 hydraulic position control system
10.4.1 schematic diagram of a hydraulic actuator
10.4.2 equations of motion of hydraulic position controlsystem
10.4.3 linearized mathematical model
10.4.4 equilibrium stability of hydraulic position controlsystem
10.4.5 amplitude and frequency of self-excited vibration
10.4.6 influence of dead-zone on motion ofhydraulic positioncontrol system
10.4.7 influence of hysteresis and dead-zone on motion ofhydraulic position control system
10.5 a nonlinear control system under velocity feedback with timedelay
references
chapter 11 modeling and control
11.1 excitation mechanism of self-excited oscillation
11.1.1 an explanation about energy mechanism
11.1.2 an explanation about feedback mechanism
11.1.3 joining of energy and feedback mechanisms
11.2 determine the extent of a mechanical model
11.2.1 minimal model and principle block diagram
11.2.2 first type of extended model
11.2.3 second type of extended model
11.3 mathematical description of motive force
11.3.1 integrate the differential equations of motion ofcontinuum
11.3.2 use of the nonholonomic constraint equations
11.3.3 establishing equivalent model of the motive force
11.3.4 construct the equivalent oscillator of motive force
11.3.5 identification of grey box model
11.3.6 constructing an empiric formula of the motive force
11.4 establish equations of motion of mechanical systems
11.4.1 application of lagrange's equation of motion
11.4.2 application of hamilton's principle
11.4.3 hamilton's principle for open systems
11.5 discretization of mathematical model of a distributedparameter system
11.5.1 lumped parameter method
11.5.2 assumed-modes method
11.5.3 finite element method
11.6 active control for suppressing self-excited vibration
11.6.1 active control of flexible rotor
11.6.2 active control of an airfoil section with flutter
references
subject index
