具體描述
作 者:王鷹宇 編著 定 價:249 齣 版 社:機械工業齣版社 齣版日期:2017年03月01日 頁 數:1110 裝 幀:精裝 ISBN:9787111557364 ●序言
●前言
●上篇分析過程、求解和控製
●1分析過程
●1.1介紹
●1.1.1求解分析問題：概覽
●1.1.2定義一個分析
●1.1.3通用和綫性攝動過程
●1.1.4多載荷工況分析
●1.1.5直接綫性方程求解器
●1.1.6迭代綫性方程求解器
●1.2靜態應力/位移分析
●1.2.1靜態應力分析過程：概覽
●1.2.2靜態應力分析
●1.2.3特徵值屈麯預測
●1.2.4非穩定失穩和後屈麯分析
●1.2.5準靜態分析
●1.2.6直接循環分析
●1.2.7使用直接循環方法的低周疲勞分析
●1.3動態應力/位移分析
●部分目錄
內容簡介
本書是“Abaqus分析用戶手冊大係”中的一冊，分為上、下兩篇。上篇為分析過程、求解與控製，下篇為分析技術。上篇的內容包括：靜態應力/位移分析，動態應力/位移分析，穩態傳輸分析，熱傳導和熱-應力分析，流體動力學分析，電磁分析，耦閤的孔隙流體流動和應力分析，質量擴散分析，聲學和衝擊分析，Abaqus/Aqua分析和退火分析，求解方法選用和收斂控製。下篇介紹瞭處理求解過程中所涉及的各種問題的多種技術，包括：重啓動，導入和傳遞結果，子結構，子模型，生成矩陣，對稱模型，慣性釋放，網格更改或替換，幾何缺陷，斷裂力學，基於麵的流體模擬，質量縮放，可選的子循環，穩態探測，ALE自適應網格劃分，自適應網格重劃分，優化技術，歐拉分析，粒子方法，順序耦閤的多物理場分析，協同仿真，用戶子程序和工具，設計敏感性分析，參數研究等諸多方麵。每一章都針對各項數值技術進行瞭詳細闡述。通過學習本書，可以全麵深刻地瞭解Aba等 王鷹宇 編著 王鷹宇，男，江蘇南通人。畢業於四川大學機械製造學院機械設計及理論方嚮，碩士研究生學曆。畢業後進入上海飛機設計研究所（640所），從事飛機結構設計與優化計算工作，參加瞭ARJ21新支綫噴氣式客機研製。後在3M中國有限公司從事固體力學，計算流體動力學，NVH仿真和設計優化工作十年有餘。目前在中國航發商發（AECCCAE）從事航空發動機短艙結構研製工作。 Abaqus被公認為是功能強大的有限元軟件。藉助它可以分析復雜的結構力學係統，特彆是能夠解決非常龐大復雜的問題，而且可以模擬高度非綫性問題。運用Abaqus不僅可以做單一零件的力學和多物理場的分析，還可以進行係統級的分析和研究，並且在近期的版本中，Abaqus中還引入瞭優化以及計算流體動力學問題的功能。Abaqus強大的分析能力和模擬復雜係統的高可靠性使得它在各國的工業生産和科研領域得到廣泛的應用。 自1997年清華大學莊茁教授將Abaqus軟件引入國內後，Abaqus因其卓越的性能而在國內各行各業得到廣泛應用。 由於工作的緣故，筆者將“Abaqus Analysis User�餾 Guide”（《Abaqus分析用戶手冊》）所包含的五部手冊翻譯成瞭中文。 &等
Finite Element Analysis: A Comprehensive Guide This book serves as a foundational text for understanding the principles and applications of Finite Element Analysis (FEA). It delves into the theoretical underpinnings of discretizing complex continuous systems into smaller, manageable elements, and then assembling these elements to approximate the behavior of the whole. The journey begins with a thorough exploration of the mathematical formulation behind FEA, including the derivation of element stiffness matrices, load vectors, and boundary conditions. Readers will gain a solid grasp of the variational principles and weighted residual methods that form the bedrock of FEA, ensuring a deep understanding rather than a superficial application of software tools. The initial chapters meticulously cover the fundamental concepts of discretizing geometry into various element types. We will examine one-dimensional elements, such as bars and beams, detailing their shape functions, stiffness contributions, and how they are assembled into a global system. This foundational knowledge then extends to two-dimensional elements, including triangular and quadrilateral elements, and their application in analyzing plane stress and plane strain problems. The text will rigorously explain the development of isoparametric elements, a crucial concept that allows for the representation of curved boundaries and complex geometries with remarkable accuracy. The underlying mathematics of numerical integration (Gauss quadrature) will be presented in detail, highlighting its significance in accurately evaluating element stiffness and force matrices. Moving beyond basic elements, the book progresses to three-dimensional elements, discussing tetrahedral and hexahedral elements and their role in solid mechanics applications. The complexities of meshing – the process of dividing a physical object into a network of finite elements – will be a central theme. We will explore different meshing strategies, the importance of element quality, and the impact of mesh density on solution accuracy and computational cost. Advanced meshing techniques, such as adaptive meshing, will be introduced, demonstrating how the mesh can be refined in regions of high stress gradients or deformation to improve accuracy efficiently. A significant portion of the text is dedicated to the application of FEA in various engineering disciplines. Structural mechanics is a primary focus, with in-depth coverage of static analysis. This includes understanding the behavior of structures under different loading conditions, identifying critical stress concentrations, and predicting deformation. The principles of linear elastic analysis will be thoroughly explained, along with the assumptions and limitations associated with this approach. Readers will learn how to interpret stress and strain contours, identify failure modes, and validate their results against analytical solutions or experimental data. Buckling analysis, a critical aspect of structural stability, is explored in detail. The book will guide readers through the process of determining critical buckling loads and understanding the different buckling modes that can occur in slender structures. Eigenvalue buckling analysis will be explained, along with its practical implications for design. Beyond static and buckling analysis, the text delves into dynamic analysis. This includes free vibration analysis to determine the natural frequencies and mode shapes of a structure, which are essential for understanding its response to vibrations and preventing resonance. Forced vibration analysis will be presented, enabling readers to predict the response of a structure to time-dependent loads, such as earthquakes or machine vibrations. The numerical methods used for solving the equations of motion, such as modal superposition and direct integration, will be discussed with clarity. Thermal analysis is another key area covered. The book will explain how to model heat transfer phenomena, including conduction, convection, and radiation, using the finite element method. Readers will learn to analyze temperature distributions, thermal stresses, and the effects of thermal loads on structural integrity. The coupling between thermal and structural analysis will also be addressed, highlighting its importance in applications involving significant temperature variations. The principles of non-linear analysis are introduced with a focus on material non-linearity. This includes the behavior of materials beyond their elastic limit, such as plasticity and creep. The iterative solution procedures required for non-linear problems, such as the Newton-Raphson method, will be explained, along with the challenges and considerations involved in achieving convergence. Geometric non-linearity, which arises from large deformations that alter the stiffness of the structure, will also be discussed, enabling readers to analyze structures where large displacements are a significant factor. Contact mechanics is a crucial aspect of many real-world engineering problems, and this book provides a comprehensive treatment of its FEA formulation. The challenges of modeling the interaction between different bodies, including surface-to-surface contact, edge-to-edge contact, and vertex-to-surface contact, will be meticulously explained. The algorithms and formulations for handling contact constraints, such as penalty methods and Lagrange multipliers, will be presented in detail, along with strategies for improving the robustness and efficiency of contact analysis. This section will equip readers with the knowledge to accurately simulate scenarios involving interlocking parts, bolted joints, and impact events. Fatigue and fracture mechanics are explored to provide insights into the long-term behavior and failure mechanisms of materials and structures. The principles of fatigue analysis will be discussed, including stress-life and strain-life approaches, and how FEA can be used to predict the remaining life of a component under cyclic loading. Fracture mechanics concepts, such as stress intensity factors and crack propagation, will be introduced, and their application in identifying potential failure sites and assessing the integrity of cracked structures will be demonstrated. The book also touches upon advanced topics and emerging trends in FEA. This may include an introduction to fluid-structure interaction, multiphysics simulations, and the role of high-performance computing in solving large-scale FEA problems. The importance of verification and validation of FEA models will be emphasized throughout the text, with discussions on best practices for ensuring the accuracy and reliability of simulation results. Case studies from various industries will be integrated to illustrate the practical application of FEA in solving real-world engineering challenges, making the theoretical concepts more tangible and relatable. Ultimately, this book aims to empower engineers and aspiring analysts with the theoretical knowledge and practical understanding necessary to effectively utilize Finite Element Analysis as a powerful tool for design, optimization, and problem-solving across a wide spectrum of engineering disciplines. It encourages a critical and analytical approach to simulation, fostering the ability to not only obtain results but also to interpret them meaningfully and make informed engineering decisions.
