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Summary
Summary
In the last three or four decades, studies of biomechanics have expanded from simple topical applications of elementary mechanics to entire areas of study. Studies and research in biomechanics now exceed those in basic mechanics itself, underlining the continuing and increasing importance of this area of study. With an emphasis on biodynamic modeling, Fundamentals of Biomechanics provides an accessible, basic understanding of the principles of biomechanics analyses.
Following a brief introductory chapter, the book reviews gross human anatomy and basic terminology currently in use. It describes methods of analysis from elementary mathematics to elementary mechanics and goes on to fundamental concepts of the mechanics of materials. It then covers the modeling of biosystems and provides a brief overview of tissue biomechanics. The author then introduces the concepts of biodynamics and human body modeling, looking at the fundamentals of the kinematics, the kinetics, and the inertial properties of human body models. He supplies a more detailed analysis of kinematics, kinetics, and dynamics of these models and discusses the numerical procedures for solving the governing dynamical equations. The book concludes with a review of a few example applications of biodynamic models such as simple lifting, maneuvering in space, walking, swimming, and crash victim simulation.
The inclusion of extensive lists of problems of varying difficulty, references, and an extensive bibliography add breadth and depth to the coverage. Focusing on biodynamic modeling to a degree not found in other texts, this book equips readers with the expertise in biomechanics they need for advanced studies, research, and employment in biomedical engineering.
Author Notes
Ronald L. Huston is a Distinguished Research Professor in the School of Dynamic Systems, College of Engineering and Applied Science, at the University of Cincinnati, Ohio.
Table of Contents
Preface | p. xi |
Acknowledgment | p. xiii |
Author | p. xv |
Chapter 1 Introduction | p. 1 |
1.1 Principal Areas of Biomechanics | p. 1 |
1.2 Approach in This Book | p. 1 |
Problem | p. 2 |
References | p. 2 |
Chapter 2 Review of Human Anatomy and Some Basic Terminology | p. 5 |
2.1 Gross (Whole-Body) Modeling | p. 5 |
2.2 Position and Direction Terminology | p. 9 |
2.3 Terminology for Common Movements | p. 12 |
2.4 Skeletal Anatomy | p. 16 |
2.5 Major Joints | p. 19 |
2.6 Major Muscle Groups | p. 20 |
2.7 Anthropometric Data | p. 21 |
Problems | p. 23 |
References | p. 23 |
Chapter 3 Methods of Analysis I: Review of Vectors, Dyadics, Matrices, and Determinants | p. 25 |
3.1 Vectors | p. 25 |
3.2 Vector Algebra: Addition and Multiplication by Scalars | p. 25 |
3.2.1 Vector Characteristics | p. 25 |
3.2.2 Equality of Vectors | p. 26 |
3.2.3 Special Vectors | p. 26 |
3.2.4 Multiplication of Vectors and Scalars | p. 26 |
3.2.5 Vector Addition | p. 26 |
3.2.6 Addition of Perpendicular Vectors | p. 28 |
3.2.7 Use of Index and Summation Notations | p. 31 |
3.3 Vector Algebra: Multiplication of Vectors | p. 32 |
3.3.1 Angle between Vectors | p. 32 |
3.3.2 Scalar Product | p. 32 |
3.3.3 Vector Product | p. 34 |
3.3.4 Dyadic Product | p. 36 |
3.4 Dyadics | p. 37 |
3.4.1 Zero Dyadic | p. 37 |
3.4.2 Identity Dyadic | p. 37 |
3.4.3 Dyadic Transpose | p. 38 |
3.4.4 Symmetric Dyadics | p. 38 |
3.4.5 Multiplication of Dyadics | p. 38 |
3.4.6 Inverse Dyadics | p. 39 |
3.4.7 Orthogonal Dyadics | p. 39 |
3.5 Multiple Products of Vectors | p. 39 |
3.5.1 Scalar Triple Product | p. 39 |
3.5.2 Vector Triple Product | p. 41 |
3.5.3 Dyadic/Vector Product | p. 41 |
3.5.4 Other Multiple Products | p. 42 |
3.6 Matrices/Arrays | p. 43 |
3.6.1 Zero Matrices | p. 43 |
3.6.2 Identity Matrices | p. 43 |
3.6.3 Matrix Transpose | p. 43 |
3.6.4 Equal Matrices | p. 43 |
3.6.5 Symmetric Matrices | p. 44 |
3.6.6 Skew-Symmetric Matrices | p. 44 |
3.6.7 Diagonal Matrix | p. 44 |
3.6.8 Matrix Measures | p. 44 |
3.6.9 Singular Matrices | p. 44 |
3.6.10 Multiplication of Matrices by Scalars | p. 44 |
3.6.11 Addition of Matrices | p. 44 |
3.6.12 Multiplication of Matrices | p. 45 |
3.6.13 Inverse Matrices | p. 45 |
3.6.14 Orthogonal Matrices | p. 46 |
3.6.15 Submatrices | p. 46 |
3.6.16 Rank | p. 46 |
3.6.17 Partitioning of Matrices, Block Multiplication | p. 46 |
3.6.18 Pseudoinverse | p. 46 |
3.7 Determinants | p. 47 |
3.8 Relationship of 3 × 3 Determinants, Permutation Symbols, and Kronecker Delta Functions | p. 49 |
3.9 Eigenvalues, Eigenvectors, and Principal Directions | p. 52 |
3.10 Maximum and Minimum Eigenvalues and the Associated Eigenvectors | p. 57 |
3.11 Use of MATLAB® | p. 58 |
3.12 Elementary MATLAB® Operations and Functions | p. 62 |
3.12.1 Elementary Operations | p. 62 |
3.12.2 Elementary Functions | p. 63 |
Problems | p. 64 |
References | p. 74 |
Chapter 4 Methods of Analysis II: Forces and Force Systems | p. 77 |
4.1 Forces: Vector Representations | p. 77 |
4.2 Moments of Forces | p. 77 |
4.3 Moments of Forces about Lines | p. 78 |
4.4 Systems of Forces | p. 79 |
4.5 Special Force Systems | p. 81 |
4.5.1 Zero Force Systems | p. 81 |
4.5.2 Couples | p. 81 |
4.5.3 Equivalent Force Systems | p. 82 |
4.5.4 Superimposed and Negative Force Systems | p. 84 |
4.6 Principle of Action-Reaction | p. 84 |
Problems | p. 85 |
References | p. 91 |
Chapter 5 Methods of Analysis III: Mechanics of Materials | p. 93 |
5.1 Concepts of Stress | p. 93 |
5.2 Concepts of Strain | p. 97 |
5.3 Principal Values of Stress and Strain | p. 102 |
5.4 Two-Dimensional Example: Mohr's Circle | p. 103 |
5.5 Elementary Stress-Strain Relations | p. 107 |
5.6 General Stress-Strain (Constitutive) Relations | p. 110 |
5.7 Equations of Equilibrium and Compatibility | p. 112 |
5.8 Use of Curvilinear Coordinates | p. 114 |
5.8.1 Cylindrical Coordinates | p. 114 |
5.8.2 Spherical Coordinates | p. 116 |
5.9 Review of Elementary Beam Theory | p. 117 |
5.9.1 Sign Convention | p. 118 |
5.9.2 Equilibrium Consideration | p. 119 |
5.9.3 Strain-Curvature Relations | p. 119 |
5.9.4 Stress-Bending Moment Relations | p. 121 |
5.9.5 Summary of Governing Equations | p. 122 |
5.10 Thick Beams | p. 123 |
5.11 Curved Beams | p. 125 |
5.12 Singularity Functions | p. 126 |
5.13 Elementary Illustrative Examples | p. 128 |
5.13.1 Cantilever Beam with a Concentrated End Load | p. 128 |
5.13.2 Cantilever Beam with a Concentrated End Load on the Right End | p. 130 |
5.13.3 Simply Supported Beam with a Concentrated Interior Span Load | p. 134 |
5.13.4 Simply Supported Beam with Uniform Load | p. 136 |
5.14 Listing of Selected Beam Displacement and Bending Moment Results | p. 139 |
5.15 Magnitude of Transverse Shear Stress | p. 140 |
5.16 Torsion of Bars | p. 140 |
5.17 Torsion of Members with Noncircular and Thin-Walled Cross Sections | p. 142 |
5.18 Energy Methods | p. 144 |
Problems | p. 149 |
References | p. 159 |
Chapter 6 Methods of Analysis IV: Modeling of Biosystems | p. 161 |
6.1 Multibody (Lumped Mass) Systems | p. 161 |
6.2 Lower-Body Arrays | p. 161 |
6.3 Whole-Body, Head/Neck, and Hand Models | p. 166 |
6.4 Gross-Motion Modeling of Flexible Systems | p. 169 |
Problems | p. 170 |
References | p. 172 |
Chapter 7 Tissue Biomechanics | p. 173 |
7.1 Hard and Soft Tissue | p. 173 |
7.2 Bones | p. 173 |
7.3 Bone Cells and Microstxucture | p. 174 |
7.4 Physical Properties of Bone | p. 175 |
7.5 Bone Development (Wolff's Law) | p. 175 |
7.6 Bone Failure (Fracture and Osteoporosis) | p. 176 |
7.7 Muscle Tissue | p. 176 |
7.8 Cartilage | p. 177 |
7.9 Ligaments/Tendons | p. 178 |
7.10 Scalp, Skull, and Brain Tissue | p. 179 |
7.11 Skin Tissue | p. 180 |
Problems | p. 180 |
References | p. 182 |
Chapter 8 Kinematical Preliminaries: Fundamental Equations | p. 183 |
8.1 Points, Particles, and Bodies | p. 183 |
8.2 Particle, Position, and Reference Frames | p. 183 |
8.3 Particle Velocity | p. 184 |
8.4 Particle Acceleration | p. 185 |
8.5 Absolute and Relative Velocity and Acceleration | p. 186 |
8.6 Vector Differentiation, Angular Velocity | p. 188 |
8.7 Two Useful Kinematic Procedures | p. 192 |
8.7.1 Differentiation in Different Reference Frames | p. 192 |
8.7.2 Addition Theorem for Angular Velocity | p. 194 |
8.8 Configuration Graphs | p. 196 |
8.9 Use of Configuration Graphs to Determine Angular Velocity | p. 206 |
8.10 Application with Biosystems | p. 208 |
8.11 Angular Acceleration | p. 211 |
8.12 Transformation Matrix Derivatives | p. 213 |
8.13 Relative Velocity and Acceleration of Two Points Fixed on a Body | p. 214 |
8.14 Singularities Occurring with Angular Velocity Components and Orientation Angles | p. 215 |
8.15 Rotation Dyadics | p. 217 |
8.16 Euler Parameters | p. 221 |
8.17 Euler Parameters and Angular Velocity | p. 223 |
8.18 Inverse Relations between Angular Velocity and Euler Parameters | p. 226 |
8.19 Numerical Integration of Governing Dynamical Equations | p. 228 |
Problems | p. 228 |
References | p. 240 |
Chapter 9 Kinematic Preliminaries: Inertia Force Considerations | p. 241 |
9.1 Applied Forces and Inertia Forces | p. 241 |
9.2 Mass Center | p. 243 |
9.3 Equivalent Inertia Force Systems | p. 247 |
Problems | p. 249 |
Chapter 10 Human Body Inertia Properties | p. 255 |
10.1 Second Moment Vectors, Moments, and Products of Inertia | p. 255 |
10.2 Inertia Dyadics | p. 258 |
10.3 Sets of Particles | p. 260 |
10.4 Body Segments | p. 261 |
10.5 Parallel Axis Theorem | p. 263 |
10.6 Eigenvalues of Inertia: Principal Directions | p. 265 |
10.7 Eigenvalues of Inertia: Symmetrical Bodies | p. 268 |
10.8 Application with Human Body Models | p. 270 |
Problems | p. 283 |
References | p. 285 |
Chapter 11 Kinematics of Human Body Models | p. 287 |
11.1 Notation, Degrees of Freedom, and Coordinates | p. 287 |
11.2 Angular Velocities | p. 290 |
11.3 Generalized Coordinates | p. 294 |
11.4 Partial Angular Velocities | p. 295 |
11.5 Transformation Matrices: Recursive Formulation | p. 297 |
11.6 Generalized Speeds | p. 300 |
11.7 Angular Velocities and Generalized Speeds | p. 302 |
11.8 Angular Acceleration | p. 304 |
11.9 Mass Center Positions | p. 307 |
11.10 Mass Center Velocities | p. 312 |
11.11 Mass Center Accelerations | p. 314 |
11.12 Summary: Human Body Model Kinematics | p. 315 |
Problems | p. 316 |
References | p. 318 |
Chapter 12 Kinetics of Human Body Models | p. 319 |
12.1 Applied (Active) and Inertia (Passive) Forces | p. 319 |
12.2 Generalized Forces | p. 320 |
12.3 Generalized Applied (Active) Forces on a Human Body Model | p. 323 |
12.4 Forces Exerted across Articulating Joints | p. 323 |
12.4.1 Contact Forces across Joints | p. 323 |
12.4.2 Ligament and Tendon Forces | p. 325 |
12.4.3 Joint Articulation Moments | p. 326 |
12.5 Contribution of Gravity (Weight) Forces to the Generalized Active Forces | p. 328 |
12.6 Generalized Inertia Forces | p. 329 |
Problems | p. 331 |
References | p. 331 |
Chapter 13 Dynamics of Human Body Models | p. 333 |
13.1 Kane's Equations | p. 333 |
13.2 Generalized Forces for a Human Body Model | p. 333 |
13.3 Dynamical Equations | p. 334 |
13.4 Formulation for Numerical Solutions | p. 335 |
13.5 Constraint Equations | p. 338 |
13.6 Constraint Forces | p. 339 |
13.7 Constrained System Dynamics | p. 342 |
13.8 Determination of Orthogonal Complement Arrays | p. 344 |
13.9 Summary | p. 344 |
Problems | p. 346 |
References | p. 348 |
Chapter 14 Numerical Methods | p. 349 |
14.1 Governing Equations | p. 349 |
14.2 Numerical Development of the Governing Equations | p. 350 |
14.3 Outline of Numerical Procedures | p. 351 |
14.4 Algorithm Accuracy and Efficiency | p. 352 |
Problems | p. 354 |
Reference | p. 354 |
Chapter 15 Simulations and Applications | p. 355 |
15.1 Review of Human Modeling for Dynamic Simulation | p. 355 |
15.2 Human Body in Free Space: A "Spacewalk" | p. 356 |
15.2.1 X-Axis (Yaw) Rotation | p. 357 |
15.2.2 Y-Axis (Pitch) Rotation | p. 358 |
15.2.3 Z-Axis (Roll) Rotation | p. 358 |
15.3 Simple Weight Lift | p. 358 |
15.4 Walking | p. 361 |
15.4.1 Terminology | p. 362 |
15.4.2 Modeling/Simulation | p. 362 |
15.4.3 Results | p. 362 |
15.5 Swimming | p. 362 |
15.5.1 Modeling the Water Forces | p. 363 |
15.5.2 Limb Motion Specification | p. 364 |
15.5.3 Kick Strokes | p. 364 |
15.5.4 Breaststroke | p. 365 |
15.5.5 Comments | p. 366 |
15.6 Crash-Victim Simulation I: Modeling | p. 366 |
15.7 Crash-Victim Simulation II: Vehicle Environment Modeling | p. 367 |
15.8 Crash-Victim Simulation III: Numerical Analysis | p. 368 |
15.9 Burden Bearing: Waiter/Tray Simulations | p. 369 |
15.9.1 Heavy Hanging Cable | p. 369 |
15.9.2 Uniform Muscle Stress Criterion | p. 371 |
15.9.3 Waitron/Tray Analysis | p. 372 |
15.10 Other Applications | p. 375 |
15.10.1 Load Sharing between Muscle Groups | p. 375 |
15.10.2 Transition Movements | p. 375 |
15.10.3 Gyroscopic Effects in Walking | p. 376 |
15.10.4 Neck Injuries in Rollover Motor Vehicle Accidents | p. 376 |
Problems | p. 376 |
References | p. 378 |
Appendix: Anthropometric Data Tables | p. 381 |
Glossary | p. 439 |
Bibliography | p. 447 |
Index | p. 449 |