EBOOK - Mechanical Engineer's Handbook (Dan B. Marghitu)


EBOOK - Sổ tay kỹ sư cơ khí (Dan B. Marghitu) - 878 Trang.

The purpose of this handbook is to present the reader with a teachable text that includes theory and examples. Useful analytical techniques provide the student and the practitioner with powerful tools for mechanical design. This book may also serve as a reference for the designer and as a source book for the researcher.
This handbook is comprehensive, convenient, detailed, and is a guide for the mechanical engineer. It covers a broad spectrum of critical engineering topics and helps the reader understand the fundamentals.
This handbook contains the fundamental laws and theories of science basic to mechanical engineering including controls and mathematics. It provides readers with a basic understanding of the subject, together with suggestions for more speci®c literature. The general approach of this book involves the presentation of a systematic explanation of the basic concepts of mechanical systems.
This handbook's special features include authoritative contributions, chapters on mechanical design, useful formulas, charts, tables, and illustrations. With this handbook the reader can study and compare the available methods of analysis. The reader can also become familiar with the methods of solution and with their implementation.

CONTENTS:

CHAPTER 1 Statics
DanB.Marghitu,CristianI. Diaconescu,andBogdanO.Ciocirlan
1.VectorAlgebra...................................... 2
1.1 Terminology and Notation . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Equality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Product of a Vector and a Scalar . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Zero Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Unit Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Vector Addition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.7 Resolution of Vectors and Components . . . . . . . . . . . . . . . . . . 6
1.8 Angle between Two Vectors . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.9 Scalar (Dot) Product of Vectors . . . . . . . . . . . . . . . . . . . . . . . 9
1.10 Vector (Cross) Product of Vectors . . . . . . . . . . . . . . . . . . . . . . 9
1.11 Scalar Triple Product of Three Vectors . . . . . . . . . . . . . . . . . . 11
1.12 Vector Triple Product of Three Vectors . . . . . . . . . . . . . . . . . . 11
1.13 Derivative of a Vector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.CentroidsandSurfaceProperties .......................... 12
2.1 Position Vector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 First Moment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3 Centroid of a Set of Points . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.4 Centroid of a Curve, Surface, or Solid . . . . . . . . . . . . . . . . . . . 15
2.5 Mass Center of a Set of Particles . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Mass Center of a Curve, Surface, or Solid . . . . . . . . . . . . . . . . 16
2.7 First Moment of an Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8 Theorems of Guldinus±Pappus . . . . . . . . . . . . . . . . . . . . . . . 21
2.9 Second Moments and the Product of Area . . . . . . . . . . . . . . . . 24
2.10 Transfer Theorem or Parallel-Axis Theorems . . . . . . . . . . . . . . 25
2.11 Polar Moment of Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.12 Principal Axes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.MomentsandCouples................................. 30
3.1 Moment of a Bound Vector about a Point . . . . . . . . . . . . . . . . 30
3.2 Moment of a Bound Vector about a Line . . . . . . . . . . . . . . . . . 31
3.3 Moments of a System of Bound Vectors . . . . . . . . . . . . . . . . . 32
3.4 Couples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.5 Equivalence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.6 Representing Systems by Equivalent Systems . . . . . . . . . . . . . . 36
4.Equilibrium......................................... 40
4.1 Equilibrium Equations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4.2 Supports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.3 Free-Body Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.DryFriction......................................... 46
5.1 Static Coef®cient of Friction . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.2 Kinetic Coef®cient of Friction . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.3 Angles of Friction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
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