System Dynamics

Höfundur Ernest Doebelin

Útgefandi Taylor & Francis

Snið Page Fidelity

Print ISBN 9780824701260

Útgáfa 1

Útgáfuár 1998

53.890 kr.

Description

Efnisyfirlit

  • Half Title
  • Title Page
  • Copyright Page
  • Table of Contents
  • PREFACE
  • 1 INTRODUCTION
  • 1-1 What Is System Dynamics?
  • 1-2 The Input/System/Output Concept
  • 1-3 A Classification of System Inputs
  • 1-4 A Classification of System Models
  • 1-5 System Design
  • Bibliography
  • Problems
  • 2 SYSTEM ELEMENTS, MECHANICAL
  • 2-1 Introduction
  • 2-2 The Spring Element
  • 2-3 Linearization
  • 2-4 Real Springs
  • 2-5 The Damper (Friction) Element
  • 2-6 Real Dampers
  • 2-7 The Inertia Element
  • 2-8 Referral of Elements Across Motion Transformers
  • 2-9 Mechanical Impedance
  • 2-10 Force and Motion Sources
  • 2-11 Design Examples
  • Engine Flywheel Example
  • Accelerometer Transducer Example
  • Optimum Decelerator Example
  • Bibliography
  • Problems
  • 3 SYSTEM ELEMENTS, ELECTRICAL
  • 3-1 Introduction
  • 3-2 The Resistance Element
  • 3-3 The Capacitance Element
  • 3-4 The Inductance Element
  • 3-5 Electrical Impedance and Electromechanical Analogies
  • Impedance Example
  • 3-6 Real Resistors, Capacitors, and Inductors
  • 3-7 Current and Voltage Sources
  • 3-8 The Operational Amplifier, An Active Circuit “Element”
  • 3-9 Modeling and Simulation of Computer-Aided Systems: Mechatronics
  • Design Example: A Feedback-Type Motion Control System
  • Bibliography
  • Problems
  • 4 SYSTEM ELEMENTS, FLUID AND THERMAL
  • 4-1 Introduction
  • 4-2 Fluid Flow Resistance and the Fluid Resistance Element
  • Example: Oscillating Flow
  • 4-3 Fluid Compliance and the Fluid Compliance Element
  • Example: Effective Bulk Modulus
  • 4-4 Fluid Inertance
  • Example: Liquid Inertance
  • 4-5 Comparison of Lumped and Distributed Fluid System Models
  • 4-6 Fluid Impedance
  • Example: Use of Differential Equation
  • 4-7 Fluid Sources, Pressure and Flow Rate
  • Example: Real Pressure Source
  • 4-8 Thermal Resistance
  • 4-9 Thermal Capacitance and Inductance
  • 4-10 Thermal Sources, Temperature and Heat Flow
  • Bibliography
  • Problems
  • 5 BASIC ENERGY CONVERTERS
  • 5-1 Introduction
  • 5-2 Converting Mechanical Energy to Other Forms
  • 5-3 Converting Electrical Energy to Other Forms
  • Example: Induction Motor
  • Example: Stepping Motor
  • 5-4 Converting Fluid Energy to Other Forms
  • 5-5 Converting Thermal Energy to Other Forms
  • 5-6 Other Significant Energy Conversions
  • 5-7 Power Modulators
  • Example: Motor/Clutch System
  • Bibliography
  • Problems
  • 6 SOLUTION METHODS FOR DIFFERENTIAL EQUATIONS
  • 6-1 Introduction
  • 6-2 Analytical Solution of Linear, Constant-Coefficient Equations: The Classical Operator Method
  • Example: Root Finding
  • Example: Complete Solution
  • 6-3 Simultaneous Equations
  • 6-4 Analytical Solution of Linear, Constant-Coefficient Equations: The Laplace Transform Method
  • Linearity Theorem
  • Differentiation Theorem
  • Integration Theorem
  • Example: Simultaneous Equations
  • Laplace Transfer Functions
  • Partial-Fraction Expansion
  • Example: Real Poles
  • Example: Complex Pole Pairs
  • Repeated Roots
  • Example: “Nearly-Repeated” Poles
  • Delay Theorem
  • Example: Discontinuous Input
  • Initial-Value Theorem and Final-Value Theorem
  • Example: Initial Conditions
  • 6-5 Simulation Methods
  • Analog Simulation
  • Digital Simulation of Dynamic Systems
  • 6-6 Specific Digital Simulation Techniques
  • Generation of Input Signals
  • Side-by-Side Comparisons
  • Event-Controlled Switching
  • 6-7 Simulation Software with Automatic Modeling
  • 6-8 State-Variable Notation
  • Example: Three-Mass Problem
  • Example: Root Finder Versus Eigenvalues
  • Bibliography
  • Problems
  • 7 FIRST-ORDER SYSTEMS
  • 7-1 Introduction
  • 7-2 Mechanical First-Order Systems
  • Preliminaries to Equation Setup
  • Writing the System Equation
  • The Generic First-Order System and Its Step Response
  • Experimental Step-Input Testing
  • Computer Simulation
  • Design Example: Electric Motor Drive for a Machine Slide
  • Motion Control by Feedback: An Alternative Design
  • Optimum Step Response Using a Nonlinear Approach
  • 7-3 Ramp, Sinusoidal, and Impulse Response of First-Order Systems
  • Ramp Response
  • Sinusoidal Response (Frequency Response)
  • Logarithmic Frequency-Response Plotting
  • Experimental Modeling Using Frequency-Response Testing
  • Impulse Response of First-Order Systems
  • 7-4 Validation of Linearized Approximations Using Simulation
  • 7-5 Electrical First-Order Systems
  • General Circuit Laws and Sign Conventions
  • Practical Examples of Electrical First-Order Systems
  • Analysis of Passive and Active Low-Pass Filters
  • Design Example: Low-Pass Filter
  • Design Example: Approximate Integrator
  • Design Example: Optical Sensor
  • 7-6 Elementary ac Circuit Analysis and Impedance Methods
  • ac Circuit Analysis Example
  • 7-7 Fluid First-Order Systems
  • Basic Laws Useful for Equation Setup
  • Linearized and Nonlinear Analysis of a Tank/Orifice System
  • Numerical Example: Nonlinear and Linearized Response of Tank/Orifice System to Step and Sine Inputs
  • Design Example: An Accumulator Surge-Damping System
  • 7-8 Thermal First-Order Systems
  • Systems with Several Inputs
  • 7-9 Mixed First-Order Systems
  • Electromechanical Open-Loop Speed Control
  • Electromechanical Closed-Loop (Feedback) Speed Control
  • Hydromechanical Systems: A Hydraulic Dynamometer
  • Hydromechanical Systems: Open-Loop Hydraulic Speed Control
  • Thermomechanical Systems: Thermal Expansion Actuators
  • Thermomechanical Systems: A Simple Friction Brake
  • 7-10 First-Order Systems with “Numerator Dynamics”
  • Design Example Showing Where System Dynamics Fits in the Overall Design Sequence
  • Bibliography
  • Problems
  • 8 SECOND-ORDER SYSTEMS AND MECHANICAL VIBRATION FUNDAMENTALS
  • 8-1 Introduction
  • 8-2 Second-Order Systems Formed from Cascaded First-Order Systems
  • Cascaded Subsystems: The Loading Effect
  • Example: Loading Effect in Two Mechanical First-Order Systems
  • 8-3 Mechanical Second-Order Systems
  • Step Response and Free Vibration of Second-Order Systems
  • Example: Initial Energy Storage
  • Example: Design of Package Cushioning for Dropped Packages
  • Significance of K, {, and w,
  • Design Example: High-Speed Scale for Packaging Conveyor
  • 8-4 Lab Testing Second-Order Systems Using Step Inputs
  • Detecting Nonviscous Damping in Transient Testing
  • 8-5 Ramp Input Response of Second-Order Systems
  • 8-6 Frequency Response of Second-Order Systems
  • 8-7 Vibration Isolation and Transmissibility
  • Design Example: Vibration Isolation of Electric Motor
  • Force Transmissibility
  • Motion Transmissibility
  • Rotating Unbalance
  • Acceleration to Operating Speed: “Transient Resonance”
  • 8-8 Impulse Response of Second-Order Systems
  • 8-9 Electrical Second-Order Systems
  • A Passive Low-Pass Filter
  • Series Resonant Circuit
  • ac Power Numerical Example
  • Band-Pass filters
  • Notch Filters
  • Op-Amp Circuits
  • Design Example: Op-Amp Circuit
  • 8-10 Fluid Second-Order Systems
  • Example: Using Various Checking Methods to Find Errors
  • Example: Pressure-Measuring System Dynamics
  • 8-11 Thermal Second-Order Systems
  • Improved Tank Heating Model
  • Accelerated Coffee Cooling
  • 8-12 Mixed Second-Order Systems
  • Hydraulic Material-Testing Machine: Resonance Put to Good Use
  • de Motor Control by Field and Armature
  • 8-13 Systems with Numerator Dynamics
  • Automobile Handling Dynamics
  • Leadlag Dynamic Compensator (Approximate Proportional Plus Derivative Plus Integral Control)
  • Bibliography
  • Problems
  • 9 GENERAL LINEAR SYSTEM DYNAMICS
  • 9-1 Introduction
  • 9-2 System Modeling and Equation Setup
  • 9-3 Stability
  • 9-4 Generalized Frequency Response
  • 9-5 Matrix Frequency Response
  • 9-6 Time-Response Simulation
  • 9-7 Frequency Spectrum Analysis of Periodic Signals: Fourier Series
  • Example: Square Wave
  • Example: Experimental Data
  • Fourier Series Calculations Using Fast Fourier Transform (FFT) Software
  • Using Simulation to Compute Complete (Transient and Periodic Steady-State) Response of Linear or Non
  • 9-8 Frequency Content of Transient Signals: Fourier Transform
  • Example: Rectangular Pulse
  • Example: Fourier Transform
  • 9-9 Experimental Testing Using Spectrum Analyzers
  • 9-10 Dead-Time Elements
  • 9-11 Another Solution to Some Vibration Problems: The Tuned Vibration Absorber
  • 9-12 Improved Vibration Isolation: Self-Leveling Air-Spring Systems
  • 9-13 Electromechanical Active Vibration Isolation
  • 9-14 An Electropneumatic Transducer Using a Piezoelectric Flapper Actuator
  • 9-15 Web-Tension Control Systems
  • Bibliography
  • Problems
  • 10 DISTRIBUTED-PARAMETER MODELS
  • 10-1 Longitudinal Vibrations of a Rod
  • 10-2 Lumped-Parameter Approximations for Rod Vibration
  • 10-3 Conduction Heat Transfer in an Insulated Bar
  • 10-4 Lumped-Parameter Approximation for Heat Transfer in Insulated Bar
  • Bibliography
  • Problems
  • APPENDIXES
  • A Viscosity of Silicone Damping Fluids
  • B Units and Conversion Factors
  • C Thermal System Properties
  • INDEX
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