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万水ANSYS技术丛书:ANSYS Workbench结构工程高级应用

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《万水ANSYS技术丛书:ANSYS Workbench结构工程高级应用》作者长期从事ANSYS Workbench结构工程的研究与应用工作,对该软件功能、特色和应用领域了解通透,经验丰富,编写了多本ANSYS应用图书,内容新颖、技术超前、案例经典,深受广大读者的喜爱。已出图书市场回馈很好。
Content Description

《万水ANSYS技术丛书:ANSYS Workbench结构工程高级应用》以ANSYS Workbench15.0 Mechanical机械设计模块为基础,对自学时所需要的有关知识和经验技巧进行了全面深刻的讲解。全书共分五部分:第一部分3个案例,讲解软件基本操作流程;第二部分讲解深入学习所需要了解的基础理论知识;第三部分利用14个经典案例详细讲解各主要模块的用法,在每个案例中介绍了多个实用技巧和使用经验与感悟;第四部分介绍根据性能和预算需求选配合适有限元分析的高性能计算机专题;第五部分介绍了218个牌号金属材料线弹性物理属性汇总表专题。
Catalogue

前言
第1章 电梯框架静力学分析案例
1.1 案例介绍
1.2 分析流程

第2章 CPU散热器热分析案例
2.1 案例介绍
2.2 分析流程

第3章 框架模态分析案例
3.1 案例介绍
3.2 分析流程

第4章 有限元单元法概述
4.1 常用数值解法
4.2 有限元法的起源和发展
4.3 有限元法的用途
4.4 有限元法的优势
4.5 数值分析的发展与用途
4.6 有限元分析的实现
4.6.1 分析模型的组成
4.6.2 单元及其特征
4.6.3 刚度矩阵的性质
4.6.4 边界条件的处理与支座反力的计算
4.6.5 单元节点编号与存储带宽
4.6.6 误差处理及控制
4.6.7 线弹性力学的变分原理
4.7 有限元程序的结构及特点
4.7.1 自动与半自动网格生成方法的综合分类
4.7.2 网格自适应细分与后验误差估计

第5章 材料力学理论基础-
5.1 概述
5.2 变形体
5.3 弹性力学的基本假设
5.4 金属材料的力学性能
5.4.1 弹性模量的概念与性质
5.4.2 弹性比功
5.4.3 弹性的不完整性
5.4.4 弹性滞后和循环韧性
5.4.5 塑性变形
5.5 强度理论

第6章 传热学、流体力学及热应力计算理论基础
6.1 对流传热
6.2 导热传热
6.3 辐射传热
6.4 传热问题的有限元分析式
6.4.1 热应力的计算
6.4.2 热应力问题的有限元分析列式

第7章 动力学分析基础知识
7.1 动力学问题的产生
7.2 振动的分类
7.2.1 特殊的“地面共振”现象
7.2.2 振动对人体的影响
7.3 结构特征值的提取
7.3.1 问题的产生
7.3.2 特征值求解器的比较
7.3.3 频率输出
7.4 模态叠加法
7.4.1 基本概念
7.4.2 适用范围
7.5 阻尼
7.5.1 引言
7.5.2 定义阻尼
7.5.3 阻尼的选择
7.6 稳态动力学分析-
7.6.1 稳态动力学分析简介
7.6.2 反应谱分析的基本理论与方法
7.6.3 随机振动及其特性
7.7 瞬态动力学分析
7.7.1 瞬态动力学分析的预备工作
7.7.2 瞬态动力学分析的关键技术细节
7.8 屈曲分析
7.8.1 结构稳定性概述
7.8.2 物理现象
7.8.3 力学描述
7.8.4 失稳的分类

第8章 接触问题
8.1 接触行为
8.2 接触算法
8.2.1 增广拉格朗日法
8.2.2 纯罚函数法
8.2.3 多点约束法
8.2.4 纯拉格朗日法
8.3 迭代计算的收敛性控制
8.4 接触摩擦
8.5 接触刚度
8.6 接触容差
8.7 Pinball区域
8.8 其他常用的接触方式及设置
8.8.1 刚一柔接触
8.8.2 螺栓预紧连接
8.8.3 点焊结构分析
8.8.4 接触裁剪功能
8.8.5 对称与非对称接触
8.8.6 接触分析中可插入的命令
8.9 接触时间步控制
8.10 接触热分析
8.1l 接触分析后处理

第9章 冷却塔设计优化案例
9.1 案例介绍
9.2 分析流程

第10章 空调响应谱分析案例
10.1 案例介绍
10.2 分析流程

第11章 核电空调随机振动分析案例
11.1 案例介绍
11.2 分析流程

第12章 风机桥架谐响应分析案例
12.1 案例介绍
12.2 分析流程

第13章 网格无关解案例
13.1 案例介绍
13.2 分析流程

第14章 发动机叶片周期扩展分析案例
14.1 案例介绍
14.2 分析流程-

第15章 性能试验台子模型技术案例
15.1 案例介绍
15.2 分析流程

第16章 设计助手案例
16.1 案例介绍
16.2 分析流程

第17章 等强度梁优化设计分析案例
17.1 案例介绍
17.2 分析流程

第18章 等强度梁形状优化分析案例
18.1 案例介绍
18.2 分析流程

第19章 压力容器静力学分析案例
19.1 案例介绍
19.2 分析流程

第20章 压力容器弹塑性分析案例
20.1 案例介绍
20.2 分析流程

第21章 钢结构立柱线性屈曲分析案例
21.1 案例介绍
21.2 分析流程

第22章 排气管道非线性屈曲分析案例
22.1 案例介绍
22.2 分析流程

第23章 螺纹接触分析案例
23.1 案例介绍
23.2 分析流程

第24章 热-结构耦合分析案例
24.1 案例介绍
24.2 分析流程

第25章 内存
25.1 内存容量
25.2 运行频率与通道数
25.3 ECC功能
25.3.1 ECC纠错算法
25.3.2 ECC内存认识误区
25.4 品牌

第26章 硬盘
26.1 固态硬盘简介
26.2 固态硬盘的性能优点
26.3 墨菲法则
26.4 固态硬盘的缺点
26.5 新固态硬盘的基本设置
26.6 固态硬盘读写性能高的原因
26.7 影响固态硬盘性能的主要方面

第27章 处理器
27.1 摩尔定律
27.2 CPU散热器的选择
27.3 CPU的制造
27.4 14款处理器的性能测试成绩
27.5 CPU品牌选择
27.5.1 浮点运算能力
27.5.2 内存性能
27.6 许可证对核心数量的限制
27.7 超线程技术
27.8 XEON处理器的命名体系和产品线

第28章 主板
28.1 单路主板
28.2 双路主板
28.3 四路主板

第29章 GPU及XEON Phi
29.1 GPU通用计算
29.2 多核计算的发展
29.3 CPU多核并行
29.4 CPU+GPU异构并行
29.5 GPU渲染流水线
29.6 Nvidia GPU简介
29.7 CUDA开发
29.8 图形显卡概览
29.9 CUDA程序优化概述

第30章 笔者亲自测试的数据
30.1 内存的专项测试数据
30.2 硬盘的专项测试数据
30.3 CPU的专项测试数据
30.4 三款计算机Solidworks性能专项测试数据

第31章 HP公司Z820工作站的测试结果
附录 金属材料线弹性物理属性汇总表
参考文献
Book Abstract

《万水ANSYS技术丛书:ANSYS Workbench结构工程高级应用》:
上述原理似乎过于晦涩而难以理解,下面用更为通俗的语言总结成三点方法:
“釜底抽薪”。当发现某条传力路径上的应力过大时,又尝试过降低局部几何突变、改善局部几何外形、调整约束等后仍不能完全解决问题,那么可以尝试改变其他位置传力路径的几何外形,提高整体刚度。这需要模态分析做验证。如在第9章冷却塔设计优化案例中介绍的增加了一个“x”型支撑架的方法。
“优化传力”。多条传力路径上如何分布荷载才能最有效或者使得应力峰值最低,这是考验结构设计者综合经验的难题。有时可以借助参数化优化方法帮助进行几何外形的优化选择。
“牵一发而动全身”。有时为了改变局部的应力状况,会不断地改变局部几何外形,以加强局部截面承载系数。但可能使得局部剐度提高,使其传递的荷载也增加。如果不能令加强处的应力集中与几何突变改善,则效果可能适得其反。
(5)应力解的误差。
应力解的误差表现于:单元内部不满足平衡方程、单元与单元交界面上应力一般不连续、在力的界面上一般也不满足力的边界条件。
因此,以上三个条件的连续条件是泛函的欧拉方程。只有在位移变分完全任意的情况下,欧拉方程才能精确地满足。在有限元法中,当单元尺寸趋于零时,能较为精确地满足以上__三个连续条件:当单元尺寸为有限值时,这些方程只能是近似地满足。应变矩阵是插值函数对坐标进行求导得到的矩阵,每求导一次,插值多项式的次数就降低一次。除非实际应力变化的阶次不大于所采用单元的应力的阶次,否则得到的只能是近似解答。因此,如何从有限元位移解中得到良好的应力解答就成为需要研究和解决的问题。
4.6.7线弹性力学的变分原理
线弹性力学的变分原理包括基于自然变分原理的最小位能原理和最小余能原理等。弹性体以未变形前的位置作为零位置,其位能的定义为:物体的弹性变形能在数值上等于引起此变形的外力在加载过程中所做的功。这就是所谓的“实功原理”。弹性体的总变形能等于该弹性体各元体的变形能之和。
虚功原理:多个质点组成的具有稳定双向理想约束的体系,原处于静止状态,则此体系保持平衡(静止)的必要条件是,主动力在体系的任何虚位移上的元功之和等于零。
虚位移是设想在系统中瞬时发生的无限小位移,这种位移是系统在各个瞬时的约束所许可的。这意味着每个瞬时先把约束“冻结”起来,再来考虑此时约束所许可的微小位移。
动力学的虚功原理是:具有理想约束的质点体系运动时,在任意瞬间,主动力和惯性力在任意虚位移上所做的元功之和等于零。
……

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Jingdong book