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| 內容簡介： |
本书分为两大部分，第壹部分详细讲解了通用参数化网格划分工具 TrueGrid3.13 的使用方法和注意事项，包括 TrueGrid 的基本操作、常用命令详解、建模范例和软件接口等。书中给出了许多建模范例的命令流，建模过程简洁明了，建立的模型网格质量很高。第二部分全面讲解了通用动力学多物理场分析程序 LS-DYNA（版本 10.1）的入门基础知识、侵彻计算、爆炸及其作用分析、裂纹扩展计算、热学计
算、隐式分析、重启动分析、流固耦合、SPH 方法、EFG 方法以及最新的 S-ALE、ICFD、CESE、SPG、Peridynamics、EM、DEM 等新算法，并结合工程应用给出了许多计算算例。对于每个精心准备的算例，详细解释了 TrueGrid 建模过程、相关LS-DYNA 关键字的含义和使用方法及注意事项。全部算例建模步骤简明扼要，参数设置合理，计算结果准确可信。扫描封底二维码可免费下载书中代码。
本书适合理工科院校的大学教师、本科高年级学生和研究生作为有限元课程学习教材，也可以作为工程技术人员的力学分析和产品开发设计的参考手册。通过本书的学习，读者可大幅提高 TrueGrid 和 LS-DYNA 的使用水平及工程分析能力。
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| 關於作者： |
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作者在总装备部21基地技术部、北京理工国方软件公司、安世亚太（北京）科技有限公司、北京航天长征飞行器研究所等单位工作多年，具有丰富的有限元分析经验，并精通各种相关软件。
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| 目錄：
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前言
第一部分 TrueGrid 软件网格划分指南
第 1 章 TrueGrid 基本操作······················ 1
1.1 TrueGrid 运行模式 ·························· 2
1.2 TrueGrid 设置 ·································· 3
1.3 TrueGrid 快速入门 ·························· 3
1.4 TrueGrid 基本概念 ························ 14
1.5 生成网格的初始命令 ···················· 16
1.6 TrueGrid 建模步骤 ························ 18
1.7 鼠标和键盘快捷键的功能 ············ 18
1.8 显示命令 ······································· 19
1.9 投影和附着 ··································· 19
1.10 蝴蝶形网格划分方法 ·················· 20
1.11 block 和 cylinder 命令练习 ········· 22
1.12 合并 ············································· 26
1.13 回退 ············································· 27
1.14 历史窗口 ····································· 27
1.15 命令执行顺序 ······························ 27
1.16 使用 TrueGrid 软件的其他注意事项·················· 28
1.17 参考文献 ····································· 29
第 2 章 TrueGrid 常用命令详解 ············ 30
2.1 部件（PART）命令 ······················ 30
2.2 几何命令 ······································· 51
2.3 合并命令 ······································· 73
2.4 全局命令 ······································· 82
2.5 输出命令 ····································· 110
2.6 参考文献 ····································· 112
第 3 章 TrueGrid 建模范例·················· 113
3.1 钢壳结构水下爆炸模型 ·············· 113
3.2 炸药自由场爆炸二维轴对称模型 ·············································· 114
3.3 炸药自由场爆炸三维 18 对称模型 ·············································· 115
3.4 刚性弹体三维全模型 ·················· 116
3.5 装药弹体二维轴对称模型 ·········· 118
3.6 装药弹体三维 14 对称模型 ······· 119
3.7 二维轴对称多层靶模型 ·············· 121
3.8 半无限靶三维 14 对称模型 ······· 122
3.9 复合靶三维 12 对称模型 ··········· 124
3.10 带 20°倾斜角的靶标三维 12对称模型 ···································· 125
3.11 带中心孔的靶标三维12对称模型 ············································· 129
3.12 射流侵彻二维轴对称模型 ········ 129
3.13 爆炸成形弹丸三维 14 对称模型 ············································ 131
3.14 破片战斗部模型 ························ 132
3.15 钢筋混凝土模型 ························ 136
3.16 SPH 模型 ··································· 139
3.17 远场水下爆炸声固耦合模型 ···· 139
3.17.1 球形水域模型 ·························· 140
3.17.2 椭球形水域模型 ······················· 141
3.18 行星齿轮模型 ···························· 144
3.19 自行车车轮模型 ························ 145
3.20 随机块石层模型 ························ 147
3.21 参考文献 ···································· 148
第 4 章 TrueGrid 支持的分析软件和软件接口 ··································· 149
4.1 TrueGrid 软件与 AUTODYN 软件接口 ·············································· 149
4.2 TrueGrid 软件与 LS-DYNA 软件接口 ·············································· 149
4.3 TrueGrid 建模与 LS-DYNA 计算直通算例 ······································ 150
4.4 参考文献 ······································ 161
第二部分 LS- -DYNA 动力学数值计算详解
第 5 章 LS- -DYNA 软件简介 ··············· 162
5.1 LS-DYNA 基本功能 ·················· 162
5.2 LS-DYNA 最新发展 ·················· 167
5.3 LS-DYNA 资源网站 ·················· 172
5.4 参考文献 ····································· 172
第 6 章 LS- -DYNA 入门基础知识 ········ 173
6.1 单位制 ········································· 173
6.1.1 力学单位 ··································· 173
6.1.2 热学单位 ··································· 173
6.1.3 电磁学单位 ······························· 174
6.2 LS-DYNA 关键字输入数据
格式 ·············································· 175
6.3 LS-DYNA 主要关键字简要
介绍 ·············································· 178
6.4 LS-DYNA 常用命令行语法 ······· 185
6.5 求解感应控制开关 ······················ 186
6.6 文件系统 ····································· 188
6.7 重启动分析 ································· 189
6.8 单精度和双精度 ·························· 190
6.9 隐式分析和显式分析 ·················· 190
6.10 接触 ··········································· 191
6.11 LagrangianEulerALE 算法 ······ 199
6.11.1 三类算法简介 ·························· 199
6.11.2 EulerALE 算法常用关键字 ······· 200
6.11.3 PART 和 AMMG 的区别 ··········· 213
6.12 流固耦合算法 ···························· 213
6.13 关键字文件的分割和编辑 ········ 218
6.14 批处理运行 LS-DYNA ············· 219
6.15 参考文献 ··································· 220
第 7 章 侵彻计算 ··································· 221
7.1 泰勒杆撞击刚性墙计算 ·············· 221
7.2 弹体侵彻多层楼板计算 ·············· 225
7.3 楔形体入水二维计算 ·················· 243
7.4 参考文献 ····································· 250
第 8 章 爆炸及其作用计算 ··················· 251
8.1 水中爆炸气泡脉动一维计算 ······ 251
8.2 爆炸成形弹丸侵彻钢板二维ALE 计算 ····································· 260
8.3 空中爆炸二维到三维映射计算 ·· 266
8.4 含铝炸药水下冲击起爆二维计算 ·············································· 274
8.5 参考文献 ······································ 285
第 9 章 裂纹扩展计算 ··························· 286
9.1 采用节点分离方法模拟钢球撞击铝板 ······································ 287
9.2 用单元失效删除和带有损伤的本构模型方法模拟弹体侵彻混凝土 ·························· 290
9.3 用 SPH 方法和带有损伤的本构
模型方法模拟水射流冲蚀煤层 ··· 296
9.4 钢板裂纹扩展二维XFEM 计算 ··· 300
9.5 金属切削 SPG 计算 ···················· 307
9.6 爆炸作用下玻璃破碎的近
场动力学计算 ······························ 314
9.7 参考文献 ····································· 323
第 10 章 热学计算 ································· 324
10.1 热学计算基础 ···························· 324
10.2 长杆瞬态热传导计算 ················ 327
10.3 厚板稳态对流计算 ···················· 331
10.4 空心柱体热应力计算 ················ 335
10.5 厚板辐射传热计算 ···················· 340
10.6 水成冰相变计算 ························ 343
10.7 参考文献 ···································· 346
第 11 章 隐式分析 ································· 347
11.1 隐式分析基础 ···························· 347
11.2 简支方板特征值分析 ················ 353
11.3 简支方板受力振动计算 ············ 356
11.4 轴向加载薄壁壳体屈曲分析 ····· 361
11.5 金属切削 EFG 计算 ·················· 365
11.6 参考文献 ···································· 373
第 12 章 S- -ALEICFDCESEEM
DEM 算法介绍 ······················· 374
12.1 水下爆炸 S-ALE 计算 ·············· 374
12.2 绕柱流 ICFD 计算 ····················· 384
12.3 激波管 CESE 计算 ···················· 388
12.4 涡电流 EM 计算 ························ 393
12.5 电磁轨道炮发射 EM 计算 ········ 397
12.6 料仓落料 DEM 计算 ················· 405
12.7 参考文献 ···································· 410
第 13 章 重启动分析 ····························· 411
13.1 小型重启动分析 — SHPB
计算 ············································ 412
13.2 完全重启动分析 — SHPB
连续打击计算 ···························· 417
13.3 参考文献 ···································· 421
第 14 章 若干计算问题的解决方法······ 422
14.1 求解算法的选择 ························ 422
14.2 关于计算结果的准确性和可
信度的讨论 ································ 422
14.3 LS-DYNA 求解时间的决定
因素 ············································ 423
14.4 减少 LS-DYNA 求解时间的
方法 ············································ 424
14.5 LS-DYNA 求解中途退出的
原因和解决办法 ························· 424
14.6 沙漏出现的原因和控制方法 ···· 426
14.7 质量缩放 ···································· 427
14.8 六面体单元中的负体积现象 ···· 428
14.9 负滑移能（接触能） ················ 429
14.10 参考文献 ·································· 430
第 15 章 LS- -DYNA 前后处理软件
LS- -PrePost 简介 ···················· 431
15.1 界面布局 ···································· 432
15.2 鼠标与键盘操作 ························ 433
15.3 主菜单 ········································ 433
15.4 页（Page） ································ 436
15.5 动画控制 ··································· 442
15.6 渲染热键 ··································· 443
15.7 通用选择界面 ···························· 445
15.8 LS-PrePost 命令行和批处理 ···· 446
15.9 常用后处理操作举例 ················ 447
15.10 参考文献 ·································· 454
附录 ·························································· 455
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| 內容試閱：
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本书分两大部分，第一部分为 TrueGrid 网格划分指南，第二部分为 LS-DYNA 动力学数值计算详解。这两部分内容既紧密联系，又具有各自的独立性。
TrueGrid 是美国 XYZ Scientific Applications 公司推出的通用网格划分软件，是一套交互式、批处理、参数化前处理器。TrueGrid 简单易学、功能强大，可以方便快捷地生成优化的、高质量的多块体结构化网格，非常适合为有限差分和有限元软件做前处理器，其独特的网格生成方法可为用户节省大量建模时间。2004 年我曾打算翻译 TrueGrid 用户手册，整理出书，可惜没有坚持下来。2005 年初 TrueGrid 软件的国内代理商——中仿科技有限公司的梁琳总经理找到我，我就将翻译初稿给了他，该公司在这些初稿的基础上编写了培训手册。
为了将初稿进一步补充完善，特地编写了第一部分。内容如下。
第 1 章介绍了 TrueGrid 基本操作，例如，运行模式、软件设置、基本概念、主要界面、使用注意事项等，并通过一个 14 圆柱建模例子介绍了 TrueGrid 建模基本步骤。
第 2 章对 TrueGrid 建模过程中频繁使用的命令进行了详解。
第 3 章给出了 20 个 TrueGrid 建模范例的详细命令流，读者可在此基础上举一反三。
第 4 章介绍了 TrueGrid 支持的分析软件和软件接口，最后给出了两个 TrueGrid 建模与LS-DYNA 计算直通的算例。LS-DYNA 是世界上著名的通用动力学多物理场分析程序，能够模拟真实世界的各种复杂问题，特别适合求解各种一维、二维、三维结构的爆炸、高速碰撞和金属成形等非线性动力学冲击问题，同时可以求解传热、流体、声学、电磁、化学反应及流固耦合问题，在航空航天、机械制造、兵器、汽车、船舶、建筑、国防、电子、石油、地震、核工业、体育、材料、生物医学等行业具有广泛应用。第二部分内容如下。
第 5 章介绍了 LS-DYNA 软件基本功能和最新发展，并列出了常用的 LS-DYNA 资源网站。
第 6 章内容为 LS-DYNA 入门基础知识，介绍了单位制、关键字输入数据格式、命令行语法、求解感应控制开关、文件系统、单精度和双精度求解器的应用范围、隐式和显式分析的区别，以及常用的接触、LagrangianEulerALE 算法、流固耦合算法等。
第 7 章介绍了三种侵彻计算算例，读者从中可以学习到刚性墙的用法、多种钢筋混凝土模型建模方法、二维流固耦合建模方法等。
第 8 章给出了爆炸及其作用计算算例，详细阐述了 LS-DYNA 中一维和二维冲击波计算模型建立方法、二维到三维映射计算方法、含铝炸药冲击起爆计算方法等。
第 9 章着重讨论了 LS-DYNA 中裂纹扩展计算方法，其中涉及近场动力学算法。
第 10 章为热学计算部分，对热传导、热对流、热应力、热辐射等算例进行了详解。
第 11 章通过四个算例对 LS-DYNA 的隐式分析功能进行了讲解。
第 12 章详细阐述了 S-ALE、ICFD、CESE、EM、DEM 等新增算法的功能和具体应用。
第 13 章通过 SHPB 计算介绍了重启动分析功能的使用方法。
第 14 章给出了若干计算问题的解决办法，这些经验性的总结有助于提升软件使用者的水平。
第 15 章全面介绍了前后处理软件 LS-PrePost 的后处理功能、使用方法和使用技巧。
由于作者水平有限，本书难免存在不足之处，欢迎广大读者和同行专家提出批评和指正（邮箱：ls-dyna@qq.com）。
作者谨识
于北京东高地
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