Finite Element Simulations Using ANSYS
The complexity of modern-day problems in mechanical engineering makes relying on pure theory or pure experiment impractical at best and time-consuming and unwieldy at worst. And for a large class of engineering problems writing computer codes from scratch is seldom found in practice. Use of reputable, trustworthy software can save time, effort, and resources while still providing reliable results. Finite Elements Simulations Using ANSYS focuses on the application of this design software in...
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The complexity of modern-day problems in mechanical engineering makes relying on pure theory or pure experiment impractical at best and time-consuming and unwieldy at worst. And for a large class of engineering problems writing computer codes from scratch is seldom found in practice. Use of reputable, trustworthy software can save time, effort, and resources while still providing reliable results. Finite Elements Simulations Using ANSYS focuses on the application of this design software in solving practical engineering problems.book presents fundamental knowledge of numerical simulation using ANSYS. It covers all disciplines in mechanical engineering: structure, solid mechanics, vibration, heat transfer, and fluid dynamics, with adequate background material to explain the physics behind the computations. The author treats each physical phenomenon independently, enabling readers to single out subjects or related chapters and study them as self-contained units. Because a finite element solution is greatly affected by the quality of the mesh, a separate chapter on mesh generation is included as a simple meshing guide, emphasizing the basics. Each chapter contains a number of pictorially guided problems with appropriate screenshots that provide a step-by-step, easy-to-follow technical demonstration. The book includes end-of-chapter problems, several practical, open-ended case studies, and a number of complete tutorials on using ANSYS to resolve the issues engineers tackle on a regular basis.Instructors can liberally select appropriate chapters to be covered depending on the objectives of the course. The author first explains multiphysics analyses, such as structure-thermal or fluid-thermal analyses, in terms of theory, then derives the equations governing the physical phenomena and presents modeling techniques. Many of the sample problems, questions, and solved examples were used in CAD courses in many universities around the world. They cover structural analysis, solid mechanics and vibration, steady-state and transient heat-transfer analysis, fluid dynamics, multiphysics simulations, and modeling and meshing. Written and organized so that it can easily be used for self-study, this book guides readers through the basic modeling requirements to the correct and physically meaningful numerical result.
Preface vAcknowledgments viiChapter 1 Introduction 11.1 Finite Element Method 11.2 Element Types 41.3 Symmetries in Models 51.4 Introduction to ANSYS 8Chapter 2 Trusses 152.1 Development of Bar Elements 152.2 Analyzing a Bar-Truss Structure 232.3 Development of Horizontal Beam Elements 362.4 Analyzing a Horizontal Beam Structure 422.5 Beam-Truss Structure under a Transient Loading 56Problems 74Chapter 3 Solid Mechanics and Vibration 793.1 Development of Plane Stress-Strain Elements 793.2 Stress Concentration of a Plate with Hole 903.3 Displacement Analysis of a Vessel 1063.4 Three-Dimensional Stress Analyses of I-Beams 1183.5 Contact Element Analysis of Two Beams 1303.6 Vibration Analysis 1473.7 Modal Vibration for a Plate with Holes 1513.8 Harmonic Vibration for a Plate with Holes 1693.9 Higher-Order Elements 175Problems 178Chapter 4 Heat Transfer 1834.1 Introduction to Heat Conduction 1834.2 Finite Element Method for Heat Transfer 1864.3 Thermal Analysis of a Fin and a Chip 1884.4 Unsteady Thermal Analyses of Fin 2064.5 Phase Change Heat Transfer 222Problems 239Chapter 5 Fluid Mechanics 2455.1 Governing Equations for Fluid Mechanics 2455.2 Finite Element Method for Fluid Mechanics 2485.3 Flow Development in a Channel 2505.4 Flow around a Tube in a Channel 269Problems 292Chapter 6 Multiphysics 2956.1 Introduction 2956.2 Thermal and Structural Analysis of a Thermocouple 2966.3 Chips Cooling in a Forced Convection Domain 3126.4 Natural Convection Flow in a Square Enclosure 3376.5 Oscillations of a Square-Heated Cylinder in a Channel 356Problems 376Chapter 7Meshing Guide 3817.1 Mesh Refinement 3817.2 Element Distortion 3837.3 Mapped Mesh 3847.4 Mapped Mesh with ANSYS 387Problems 397Bibliography 401Index 403
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