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# Movement Equations 1. Location, Kinematics and Kinetics

• ID: 3984183
• Book
• 274 Pages
• John Wiley and Sons Ltd
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The set of books on Mechanical Engineering and Solid Mechanics, of which this book is the first volume, is an essential tool for those looking to develop a rigorous knowledge of the discipline, whether students, professionals (in search of an approach to a problem they are dealing with), or anyone else interested.

This volume deals with the elements required for establishing the equations of motion when dealing with solid bodies. Chapter 1 focuses on the systems of reference used to locate solid bodies relative to the observer, and demonstrates how to describe their position, orientation, and evolution during their motion. Chapter 2 introduces descriptors of motion such as velocity and acceleration, and develops the concept of torsor notation in relation to these descriptors. Finally, Chapter 3 concerns the notions of mass and inertia, as well as the kinetic torsor and dynamic torsor which consolidate the kinematic and kinetic aspects in a single concept.

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Introduction  ix

Table of Notations xv

Chapter 1. Location of Solid Bodies 1

1.1. The notion of system of reference 1

1.2. Frame of reference  2

1.2.1. Setting up a frame of reference  2

1.2.2. Various types of frames of reference 9

1.3. Location of a solid body 14

1.3.1. The principle of locating a solid  15

1.3.2. Location parameters of a solid 15

1.3.3. Coordinates of the position vector  16

1.3.4. Exercises 20

1.4. Positioning of a system of reference connected to a solid 22

1.4.1. Several examples of location systems of reference  22

1.4.2. General location parameters 26

1.4.3. Euler angles 28

1.4.4. Changes of basis in the Euler representation . 29

1.4.5. Exercises 36

1.5. Vector rotation R u ,   44

1.5.1. Exercises 47

1.6. Other exercises  51

1.6.1. Exercise 7 Location of an airplane Euler angles  51

1.6.2. Exercise 8 Vector rotation  55

1.6.3. Exercise 9 Vector rotation  57

1.6.4. Exercise 10 Vector rotation  59

Chapter 2. Solid Kinematics 63

2.1. Generalities on moving solids  63

2.1.1. Concept of a rigid material system 63

2.1.2. Notion of time 64

2.1.3. Kinematic components of a solid  65

2.2. Kinematics of a material point  66

2.2.1. Position vector 66

2.2.2. Trajectory of a material point in a reference frame  66

2.2.3. Velocity of a material point in a reference frame  67

2.2.4. Components of the velocity vector or velocity  68

2.2.5. Derivative of a vector in a basis  71

2.2.6. Acceleration vector of a material point in a reference frame 74

2.2.7. Exercises  79

2.3. Velocity field associated with the motion of the rigid solid 85

2.3.1. Fundamental formula for the velocity 85

2.3.2. Use of matrix notation  87

2.3.3. Velocity–distributing torsor 89

2.3.4. Partial distributing  89

2.4. Acceleration field of the rigid solid 91

2.4.1. Derivative in relation to the time of the rate of rotation  91

2.4.2. Derivation of a vector of the solid 92

2.4.3. Fundamental formula of acceleration 92

2.4.4. Matrix notation of the vectorial product  92

2.4.5. Exercises  93

2.5. Motion with fixed plane 102

2.5.1. Position of the problem 102

2.5.2. Instantaneous rotation center  104

2.5.3. Fixed and mobile centroids of the motion  106

2.5.4. The instantaneous center of rotation on the fixed centroid and on the movable centroid 107

2.5.5. Physical interpretation of the notions of fixed centroid and mobile centroid 108

2.5.6. Exercises  109

2.6. Combining motions within a mobile frame of reference  117

2.6.1. Position of the problem  117

2.6.2. Trajectory of a material point in the different frames  118

2.6.3. Combination of velocities  118

2.6.4. Combination of accelerations  123

2.6.5. Application exercises 128

2.7. Relative motion of two rigid solids in contact 141

2.7.1. Position of the problem  141

2.7.2. Velocity–distributing torsors 141

2.7.3. Characterization of motions 142

2.7.4. Nature of the contact between (S1) and (S2)  143

2.7.5. Exercises  145

2.8. Other exercises 156

2.8.1. Exercise 21 Motion with fixed plane 156

2.8.2. Exercise 22 Combination of motions 160

2.8.3. Exercise 23 Kinematics of contact in a system 169

Chapter 3. Kinetics of Solid Bodies 177

3.1. The mass of a continuous mechanical set (D )  177

3.1.1. The notion of measure on a continuous mechanical set  178

3.1.2. The volume and the mass of a continuous mechanical set  178

3.2. Center of the measure of on (D )  179

3.2.1. Definition 179

3.2.2. Uniqueness of the center of measure 179

3.2.3. Center of measure of two disjoint sets  180

3.2.4. Coordinates of the center of measure in a system of reference ´ Ä  181

3.3. Interpretation of the notion of center of measure  183

3.4. Kinetic torsor of a mechanical set (D )  183

3.4.1. Definition linear momentum 183

3.4.2. Kinetic torsor { } S p of a rigid solid body  185

3.4.3. Inertia operator OS ( - ) I S m 186

3.4.4. Kinetic torsor and change of basis  196

3.5. Dynamic torsor of a mechanical set (D ) 198

3.5.1. Definition 198

3.5.2. Dynamic torsor of the rigid solid body (S) 199

3.6. Kinetic energy of a mechanical set (D ) 206

3.6.1. Definition 207

3.6.2. Kinetic energy of the free rigid solid body (S)  207

3.6.3. Derivatives of the kinetic energy – Lagrangian  213

3.6.4. Exercises  223

3.6.5. Kinetic energy of a constrained solid 238

3.7. Partition of a continuous mechanical set (D ) 239

Bibliography  241

Index 243

3. Kinetics of Solid Bodies
1. Location of Solid Bodies.

2. Solid Kinematics.

3. Kinetics of Solid Bodies.

1. Location of Solid Bodies.

2. Solid Kinematics.

3. Kinetics of Solid Bodies.

1. Location of Solid Bodies.

2. Solid Kinematics.

3. Kinetics of Solid Bodies.
Note: Product cover images may vary from those shown
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