Theory of Machines and Mechanisms
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18 958 Ft
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A termék adatai:
- Kiadás sorszáma 3
- Kiadó OUP USA
- Megjelenés dátuma 2003. február 27.
- ISBN 9780195155983
- Kötéstípus Keménykötés
- Terjedelem752 oldal
- Méret 244x195x32 mm
- Súly 1359 g
- Nyelv angol
- Illusztrációk numerous halftones and figures 0
Kategóriák
Rövid leírás:
This textbook covers the design of mechanisms, kinematics and dynamics of machines. The book is intended for senior/grad students (4th /5th year) in mechanical engineering who are taking a course commonly called Kinematics, or the Design of Machine Elements. This course follows a course called "Machine Design".
TöbbHosszú leírás:
Theory of Machines and Mechanisms, Third Edition, is a comprehensive study of rigid-body mechanical systems and provides background for continued study in stress, strength, fatigue, life, modes of failure, lubrication and other advanced aspects of the design of mechanical systems. This third edition provides the background, notation, and nomenclature essential for students to understand the various and independent technical approaches that exist in the field of mechanisms,
kinematics, and dynamics of machines. The authors employ all methods of analysis and development, with balanced use of graphical and analytic methods. New material includes an introduction of kinematic coefficients, which clearly separates kinematic (geometric) effects from speed or dynamic dependence. At the
suggestion of users, the authors have included no written computer programs, allowing professors and students to write their own and ensuring that the book does not become obsolete as computers and programming languages change.
Part I introduces theory, nomenclature, notation, and methods of analysis. It describes all aspects of a mechanism (its nature, function, classification, and limitations) and covers kinematic analyses (position, velocity, and acceleration). Part II shows the engineering applications involved in the selection, specification, design, and sizing of mechanisms that accomplish specific motion objectives. It includes chapters on cam systems, gears, gear trains, synthesis of linkages, spatial
mechanisms, and robotics. Part III presents the dynamics of machines and the consequences of the proposed mechanism design specifications. New dynamic devices whose functions cannot be explained or understood without dynamic analysis are included. This third edition incorporates entirely new chapters on the
analysis and design of flywheels, governors, and gyroscopes.
Tartalomjegyzék:
Preface
Part 1. Kinematics and Mechanisms
1. The World of Mechanisms
Introduction
Analysis and Synthesis
The Science of Mechanics
Terminology, Definitions, and Assumptions
Planar, Spherical, and Spatial Mechanisms
Mobility
Classification of Mechanisms
Kinematic Inversion
Grashof's Law
Mechanical Advantage
Problems
2. Position and Displacement
Locus of a Moving Point
Position of a Point
Position Difference between Two Points
Apparent Position of a Point
Absolute Position of a Point
The Loop-Closure Equation
Graphic Position Analysis
Algebraic Position Analysis
Complex-Algebra Solutions of Planar Vector Equations
Complex Polar Algebra
Position Analysis Techniques
The Chace Solutions to Planar Vector Equations
Coupler Curve Generation
Displacement of a Moving Point
Displacement Difference between Two Points
Rotation and Translation
Apparent Displacement
Absolute Displacement
Problems
3. Velocity
Definition of Velocity
Rotation of a Rigid Body
Velocity Difference between Points of a Rigid Body
Geometric Methods; Velocity Polygons
Apparent Velocity of a Point in a Moving Coordinate System
Apparent Angular Velocity
Direct Contact and Rolling Contact
Systematic Strategy for Velocity Analysis
Analytic Methods
Complex-Algebra Methods
The Method of Kinematic Coefficients
The Vector Method
Instantaneous Center of Velocity
The Aronhold-Kennedy Theorem of Three Centers
Locating Instant Centers of Velocity
Velocity Analysis Using Instant Centers
The Angular-Velocity-Ratio Theorem
Relationships between First-Order Kinematic Coefficients and Instant Centers
Freudenstein's Theorem
Indices of Merit; Mechanical Advantage
Centrodes
Problems
4. Acceleration
Definition of Acceleration
Angular Acceleration
Acceleration Difference between Points of a Rigid Body
Acceleration Polygons
Apparent Acceleration of a Point in a Moving Coordinate System
Apparent Angular Acceleration
Direct Contact and Rolling Contact
Systematic Strategy for Acceleration Analysis
Analytic Methods
Complex-Algebra Methods
The Method of Kinematic Coefficients
The Chace Solutions
The Instant Center of Acceleration
The Euler-Savary Equation
The Bobillier Constructions
Radius of Curvature of a Point Trajectory Using Kinematic Coefficients
The Cubic of Stationary Curvature
Problems
Part 2. Design of Mechanisms
5. Cam Design
Introduction
Classification of Cams and Followers
Displacement Diagrams
Graphical Layout of Cam Profiles
Kinematic Coefficients of the Follower Motion
High-Speed Cams
Standard Cam Motions
Matching Derivatives of the Displacement Diagrams
Plate Cam with Reciprocating Flat-Face Follower
Plate Cam with Reciprocating Roller Follower
Problems
6. Spur Gears
Terminology and Definitions
Fundamental Law of Toothed Gearing
Involute Properties
Interchangeable Gears; AGMA Standards
Fundamentals of Gear-Tooth Action
The Manufacture of Gear Teeth
Interference and Undercutting
Contact Ratio
Varying the Center Distance
Involutometry
Nonstandard Gear Teeth
Problems7. Helical Gears
Parallel-Axis Helical Gears
Helical Gear Tooth Relations
Helical Gear Tooth Proportions
Contact of Helical Gear Teeth
Replacing Spur Gears With Helical Gears
Herringbone Gears
Crossed-Axis Helical Gears
Problems8. Bevel Gears
Straight-Tooth Bevel Gears
Tooth Proportions for Bevel Gears
Crown and Face Gears
Spiral Bevel Gears
Hypoid Gears
Problems
9. Worms and Worm Gears
Basics
Problems
10. Mechanism Trains
Parallel-Axis Gear Trains
Examples of Gear Trains
Determining Tooth Numbers
Epicyclic Gear Trains
Bevel Gear Epicyclic Trains
Analysis of Planetary Gear Trains by Formula
Tabular Analysis of Planetary Gear Trains
Adders and Differentials
All Wheel Drive Train
Problems
11. Synthesis of Linkages
Type, Number, and Dimensional Synthesis
Function Generation, Path Generation, and Body Guidance
Two-Position Synthesis of Slider-Crank Mechanisms
Two-Position Synthesis of Crank-and-Rocker Mechanisms
Crank-Rocker Mechanisms with Optimum Transmission Angle
Three-Position Synthesis
Four-Position Synthesis; Point-Precision Reduction
Precision Positions; Structural Error; Chebychev Spacing
The Overlay Method
Coupler-Curve Synthesis
Cognate Linkages; The Roberts-Chebychev Theorem
Bloch's Method of Synthesis
Freudenstein's Equation
Analytic Synthesis Using Complex Algebra
Synthesis of Dwell Mechanisms
Intermittent Rotary Motion
Problems
12. Spatial Mechanisms
Introduction
Exceptions in the Mobility of Mechanisms
The Position-Analysis Problem
Velocity and Acceleration Analyses
The Eulerian Angles
The Denavit-Hartenberg Parameters
Transformation-Matrix Position Analysis
Matrix Velocity and Acceleration Analyses
Generalized Mechanism Analysis Computer Programs
Problems
13. Robotics
Introduction
Topological Arrangements of Robotic Arms
Forward Kinematics
Inverse Position Analysis
Inverse Velocity and Acceleration Analyses
Robot Actuator Force Analyses
Problems
Part 3. Dynamics of Machines
14. Static Force Analysis
Introduction
Newton's Laws
Systems of Units
Applied and Constraint Forces
Free-Body Diagrams
Conditions for Equilibrium
Two- and Three-Force Members
Four-Force Members
Friction-Force Models
Static Force Analysis with Friction
Spur- and Helical-Gear Force Analysis
Straight-Bevel-Gear Force Analysis
The Method of Virtual Work
Problems
15. Dynamic Force Analysis (Planar)
Introduction
Centroid and Center of Mass
Mass Moments and Products of Inertia
Inertia Forces and D'Alembert's Principle
The Principle of Superposition
Planar Rotation about a Fixed Center
Shaking Forces and Moments
Complex Algebra Approach
Equations of Motion
Problems
16. Dynamic Force Analysis (Spatial)
Introduction
Measuring Mass Moment of Inertia
Transformation of Inertia Axes
Euler's Equations of Motion
Impulse and Momentum
Angular Impulse and Angular Momentum
Problems
17. Vibration Analysis
Differential Equations of Motion
A Vertical Model
Solution of the Differential Equation
Step-Input Forcing
Phase-Plane Representation
Phase-Plane Analysis
Transient Disturbances
Free Vibration with Viscous Damping
Damping Obtained by Experiment
Phase-Plane Representation of Damped Vibration
Response to Periodic Forcing
Harmonic Forcing
Forcing Caused by Unbalance
Relative Motion
Isolation
Rayleigh's Method
First and Second Critical Speeds of a Shaft
Torsional Systems
Problems
18. Dynamics of Reciprocating Engines
Engine Types
Indicator Diagrams
Dynamic Analysis - General
Gas Forces
Equivalent Masses
Inertia Forces
Bearing Loads in a Single Cylinder Engine
Crankshaft Torque
Engine Shaking Forces
Computation Hints
Problems
19. Balancing
Static Unbalance
Equations of Motion
Static Balancing Machines
Dynamic Unbalance
Analysis of Unbalance
Dynamic Balancing
Balancing Machines
Field Balancing with a Programmable Calculator
Balancing a Single-Cylinder Engine
Balancing Multi-Cylinder Engines
Analytical Technique for Balancing Multi-Cylinder Reciprocating Engines
Balancing Linkages
Balancing of Machines
Problems
20. Cam Dynamics
Rigid- and Elastic-Body Cam Systems
Analysis of an Eccentric Cam
Effect of Sliding Friction
Analysis of Disk Cam with Reciprocating Roller Follower
Analysis of Elastic Cam Systems
Unbalance, Spring Surge, and Windup
Problems
21. Flywheels
Dynamic Theory
Integration Technique
Multi-Cylinder Engine Torque Summation
Problems
22. Governors
Classification
Centrifugal Governors
The Inertia Governor
Mechanical Control Systems
Standard Input Functions
Solution of Linear Differential Equations
Analysis of Proportional-Error Feedback Systems
23. Gyroscopes
Introduction
The Motion of a Gyroscope
Steady or Regular Precession
Forced Precession
Problems
Appendices
Standard SI Prefixes
Conversion from US Customary Units to SI Units
Conversion from SI Units to US Customary Units
Properties of Areas
Mass Moments of Inertia
Involute Function
Answers to Selected Problems
