TrueGrid和LS-DYNA動力學(xué)數(shù)值計算詳解
定 價：119 元
叢書名：CAD/CAM/CAE 工程應(yīng)用叢書
- 作者：辛春亮 薛再清 涂建 趙利軍 劉安陽
- 出版時間：2019/9/1
- ISBN：9787111632504
- 出 版 社：機(jī)械工業(yè)出版社
- 中圖法分類：O313-39
- 頁碼：
- 紙張：膠版紙
- 版次：
- 開本：16開
本書分為兩大部分，第壹部分詳細(xì)講解了通用參數(shù)化網(wǎng)格劃分工具 TrueGrid3.13 的使用方法和注意事項，包括 TrueGrid 的基本操作、常用命令詳解、建模范例和軟件接口等。書中給出了許多建模范例的命令流，建模過程簡潔明了，建立的模型網(wǎng)格質(zhì)量很高。第二部分全面講解了通用動力學(xué)多物理場分析程序 LS-DYNA（版本 10.1）的入門基礎(chǔ)知識、侵徹計算、爆炸及其作用分析、裂紋擴(kuò)展計算、熱學(xué)計
算、隱式分析、重啟動分析、流固耦合、SPH 方法、EFG 方法以及*新的 S-ALE、ICFD、CESE、SPG、Peridynamics、EM、DEM 等新算法，并結(jié)合工程應(yīng)用給出了許多計算算例。對于每個精心準(zhǔn)備的算例，詳細(xì)解釋了 TrueGrid 建模過程、相關(guān)LS-DYNA 關(guān)鍵字的含義和使用方法及注意事項。全部算例建模步驟簡明扼要，參數(shù)設(shè)置合理，計算結(jié)果準(zhǔn)確可信。掃描封底二維碼可免費下載書中代碼。
本書適合理工科院校的大學(xué)教師、本科高年級學(xué)生和研究生作為有限元課程學(xué)習(xí)教材，也可以作為工程技術(shù)人員的力學(xué)分析和產(chǎn)品開發(fā)設(shè)計的參考手冊。通過本書的學(xué)習(xí)，讀者可大幅提高 TrueGrid 和 LS-DYNA 的使用水平及工程分析能力。
本書分兩大部分，第一部分為 TrueGrid 網(wǎng)格劃分指南，第二部分為 LS-DYNA 動力學(xué)數(shù)值計算詳解。這兩部分內(nèi)容既緊密聯(lián)系，又具有各自的獨立性。
TrueGrid 是美國 XYZ Scientific Applications 公司推出的通用網(wǎng)格劃分軟件，是一套交互式、批處理、參數(shù)化前處理器。TrueGrid 簡單易學(xué)、功能強(qiáng)大，可以方便快捷地生成優(yōu)化的、高質(zhì)量的多塊體結(jié)構(gòu)化網(wǎng)格，非常適合為有限差分和有限元軟件做前處理器，其獨特的網(wǎng)格生成方法可為用戶節(jié)省大量建模時間。2004 年我曾打算翻譯 TrueGrid 用戶手冊，整理出書，可惜沒有堅持下來。2005 年初 TrueGrid 軟件的國內(nèi)代理商——中仿科技有限公司的梁琳總經(jīng)理找到我，我就將翻譯初稿給了他，該公司在這些初稿的基礎(chǔ)上編寫了培訓(xùn)手冊。
為了將初稿進(jìn)一步補(bǔ)充完善，特地編寫了第一部分。內(nèi)容如下。
第 1 章介紹了 TrueGrid 基本操作，例如，運行模式、軟件設(shè)置、基本概念、主要界面、使用注意事項等，并通過一個 1/4 圓柱建模例子介紹了 TrueGrid 建�；静襟E。
第 2 章對 TrueGrid 建模過程中頻繁使用的命令進(jìn)行了詳解。
第 3 章給出了 20 個 TrueGrid 建模范例的詳細(xì)命令流，讀者可在此基礎(chǔ)上舉一反三。
第 4 章介紹了 TrueGrid 支持的分析軟件和軟件接口，最后給出了兩個 TrueGrid 建模與LS-DYNA 計算直通的算例。LS-DYNA 是世界上著名的通用動力學(xué)多物理場分析程序，能夠模擬真實世界的各種復(fù)雜問題，特別適合求解各種一維、二維、三維結(jié)構(gòu)的爆炸、高速碰撞和金屬成形等非線性動力學(xué)沖擊問題，同時可以求解傳熱、流體、聲學(xué)、電磁、化學(xué)反應(yīng)及流固耦合問題，在航空航天、機(jī)械制造、兵器、汽車、船舶、建筑、國防、電子、石油、地震、核工業(yè)、體育、材料、生物/醫(yī)學(xué)等行業(yè)具有廣泛應(yīng)用。第二部分內(nèi)容如下。
第 5 章介紹了 LS-DYNA 軟件基本功能和最新發(fā)展，并列出了常用的 LS-DYNA 資源網(wǎng)站。
第 6 章內(nèi)容為 LS-DYNA 入門基礎(chǔ)知識，介紹了單位制、關(guān)鍵字輸入數(shù)據(jù)格式、命令行語法、求解感應(yīng)控制開關(guān)、文件系統(tǒng)、單精度和雙精度求解器的應(yīng)用范圍、隱式和顯式分析的區(qū)別，以及常用的接觸、Lagrangian/Euler/ALE 算法、流固耦合算法等。
第 7 章介紹了三種侵徹計算算例，讀者從中可以學(xué)習(xí)到剛性墻的用法、多種鋼筋混凝土模型建模方法、二維流固耦合建模方法等。
第 8 章給出了爆炸及其作用計算算例，詳細(xì)闡述了 LS-DYNA 中一維和二維沖擊波計算模型建立方法、二維到三維映射計算方法、含鋁炸藥沖擊起爆計算方法等。
第 9 章著重討論了 LS-DYNA 中裂紋擴(kuò)展計算方法，其中涉及近場動力學(xué)算法。
第 10 章為熱學(xué)計算部分，對熱傳導(dǎo)、熱對流、熱應(yīng)力、熱輻射等算例進(jìn)行了詳解。
第 11 章通過四個算例對 LS-DYNA 的隱式分析功能進(jìn)行了講解。
第 12 章詳細(xì)闡述了 S-ALE、ICFD、CESE、EM、DEM 等新增算法的功能和具體應(yīng)用。
第 13 章通過 SHPB 計算介紹了重啟動分析功能的使用方法。
第 14 章給出了若干計算問題的解決辦法，這些經(jīng)驗性的總結(jié)有助于提升軟件使用者的水平。
第 15 章全面介紹了前后處理軟件 LS-PrePost 的后處理功能、使用方法和使用技巧。
由于作者水平有限，本書難免存在不足之處，歡迎廣大讀者和同行專家提出批評和指正（郵箱：ls-dyna@qq.com）。
作者謹(jǐn)識
于北京東高地
作者在總裝備部21基地技術(shù)部、北京理工國方軟件公司、安世亞太（北京）科技有限公司、北京航天長征飛行器研究所等單位工作多年，具有豐富的有限元分析經(jīng)驗，并精通各種相關(guān)軟件。
前言
第一部分 TrueGrid 軟件網(wǎng)格劃分指南
第 1 章 TrueGrid 基本操作······················ 1
1.1 TrueGrid 運行模式 ·························· 2
1.2 TrueGrid 設(shè)置 ·································· 3
1.3 TrueGrid 快速入門 ·························· 3
1.4 TrueGrid 基本概念 ························ 14
1.5 生成網(wǎng)格的初始命令 ···················· 16
1.6 TrueGrid 建模步驟 ························ 18
1.7 鼠標(biāo)和鍵盤快捷鍵的功能 ············ 18
1.8 顯示命令 ······································· 19
1.9 投影和附著 ··································· 19
1.10 蝴蝶形網(wǎng)格劃分方法 ·················· 20
1.11 block 和 cylinder 命令練習(xí) ········· 22
1.12 合并 ············································· 26
1.13 回退 ············································· 27
1.14 歷史窗口 ····································· 27
1.15 命令執(zhí)行順序 ······························ 27
1.16 使用 TrueGrid 軟件的其他注意事項·················· 28
1.17 參考文獻(xiàn) ····································· 29
第 2 章 TrueGrid 常用命令詳解 ············ 30
2.1 部件（PART）命令 ······················ 30
2.2 幾何命令 ······································· 51
2.3 合并命令 ······································· 73
2.4 全局命令 ······································· 82
2.5 輸出命令 ····································· 110
2.6 參考文獻(xiàn) ····································· 112
第 3 章 TrueGrid 建模范例·················· 113
3.1 鋼殼結(jié)構(gòu)水下爆炸模型 ·············· 113
3.2 炸藥自由場爆炸二維軸對稱模型 ·············································· 114
3.3 炸藥自由場爆炸三維 1/8 對稱模型 ·············································· 115
3.4 剛性彈體三維全模型 ·················· 116
3.5 裝藥彈體二維軸對稱模型 ·········· 118
3.6 裝藥彈體三維 1/4 對稱模型 ······· 119
3.7 二維軸對稱多層靶模型 ·············· 121
3.8 半無限靶三維 1/4 對稱模型 ······· 122
3.9 復(fù)合靶三維 1/2 對稱模型 ··········· 124
3.10 帶 20°傾斜角的靶標(biāo)三維 1/2對稱模型 ···································· 125
3.11 帶中心孔的靶標(biāo)三維1/2對稱模型 ············································· 129
3.12 射流侵徹二維軸對稱模型 ········ 129
3.13 爆炸成形彈丸三維 1/4 對稱模型 ············································ 131
3.14 破片戰(zhàn)斗部模型 ························ 132
3.15 鋼筋混凝土模型 ························ 136
3.16 SPH 模型 ··································· 139
3.17 遠(yuǎn)場水下爆炸聲固耦合模型 ···· 139
3.17.1 球形水域模型 ·························· 140
3.17.2 橢球形水域模型 ······················· 141
3.18 行星齒輪模型 ···························· 144
3.19 自行車車輪模型 ························ 145
3.20 隨機(jī)塊石層模型 ························ 147
3.21 參考文獻(xiàn) ···································· 148
第 4 章 TrueGrid 支持的分析軟件和軟件接口 ··································· 149
4.1 TrueGrid 軟件與 AUTODYN 軟件接口 ·············································· 149
4.2 TrueGrid 軟件與 LS-DYNA 軟件接口 ·············································· 149
4.3 TrueGrid 建模與 LS-DYNA 計算直通算例 ······································ 150
4.4 參考文獻(xiàn) ······································ 161
第二部分 LS- -DYNA 動力學(xué)數(shù)值計算詳解
第 5 章 LS- -DYNA 軟件簡介 ··············· 162
5.1 LS-DYNA 基本功能 ·················· 162
5.2 LS-DYNA 最新發(fā)展 ·················· 167
5.3 LS-DYNA 資源網(wǎng)站 ·················· 172
5.4 參考文獻(xiàn) ····································· 172
第 6 章 LS- -DYNA 入門基礎(chǔ)知識 ········ 173
6.1 單位制 ········································· 173
6.1.1 力學(xué)單位 ··································· 173
6.1.2 熱學(xué)單位 ··································· 173
6.1.3 電磁學(xué)單位 ······························· 174
6.2 LS-DYNA 關(guān)鍵字輸入數(shù)據(jù)
格式 ·············································· 175
6.3 LS-DYNA 主要關(guān)鍵字簡要
介紹 ·············································· 178
6.4 LS-DYNA 常用命令行語法 ······· 185
6.5 求解感應(yīng)控制開關(guān) ······················ 186
6.6 文件系統(tǒng) ····································· 188
6.7 重啟動分析 ································· 189
6.8 單精度和雙精度 ·························· 190
6.9 隱式分析和顯式分析 ·················· 190
6.10 接觸 ··········································· 191
6.11 Lagrangian/Euler/ALE 算法 ······ 199
6.11.1 三類算法簡介 ·························· 199
6.11.2 Euler/ALE 算法常用關(guān)鍵字 ······· 200
6.11.3 PART 和 AMMG 的區(qū)別 ··········· 213
6.12 流固耦合算法 ···························· 213
6.13 關(guān)鍵字文件的分割和編輯 ········ 218
6.14 批處理運行 LS-DYNA ············· 219
6.15 參考文獻(xiàn) ··································· 220
第 7 章 侵徹計算 ··································· 221
7.1 泰勒桿撞擊剛性墻計算 ·············· 221
7.2 彈體侵徹多層樓板計算 ·············· 225
7.3 楔形體入水二維計算 ·················· 243
7.4 參考文獻(xiàn) ····································· 250
第 8 章 爆炸及其作用計算 ··················· 251
8.1 水中爆炸氣泡脈動一維計算 ······ 251
8.2 爆炸成形彈丸侵徹鋼板二維ALE 計算 ····································· 260
8.3 空中爆炸二維到三維映射計算 ·· 266
8.4 含鋁炸藥水下沖擊起爆二維計算 ·············································· 274
8.5 參考文獻(xiàn) ······································ 285
第 9 章 裂紋擴(kuò)展計算 ··························· 286
9.1 采用節(jié)點分離方法模擬鋼球撞擊鋁板 ······································ 287
9.2 用單元失效刪除和帶有損傷的本構(gòu)模型方法模擬彈體侵徹混凝土 ·························· 290
9.3 用 SPH 方法和帶有損傷的本構(gòu)
模型方法模擬水射流沖蝕煤層 ··· 296
9.4 鋼板裂紋擴(kuò)展二維XFEM 計算 ··· 300
9.5 金屬切削 SPG 計算 ···················· 307
9.6 爆炸作用下玻璃破碎的近
場動力學(xué)計算 ······························ 314
9.7 參考文獻(xiàn) ····································· 323
第 10 章 熱學(xué)計算 ································· 324
10.1 熱學(xué)計算基礎(chǔ) ···························· 324
10.2 長桿瞬態(tài)熱傳導(dǎo)計算 ················ 327
10.3 厚板穩(wěn)態(tài)對流計算 ···················· 331
10.4 空心柱體熱應(yīng)力計算 ················ 335
10.5 厚板輻射傳熱計算 ···················· 340
10.6 水成冰相變計算 ························ 343
10.7 參考文獻(xiàn) ···································· 346
第 11 章 隱式分析 ································· 347
11.1 隱式分析基礎(chǔ) ···························· 347
11.2 簡支方板特征值分析 ················ 353
11.3 簡支方板受力振動計算 ············ 356
11.4 軸向加載薄壁殼體屈曲分析 ····· 361
11.5 金屬切削 EFG 計算 ·················· 365
11.6 參考文獻(xiàn) ···································· 373
第 12 章 S- -ALE/ICFD/CESE/EM/
DEM 算法介紹 ······················· 374
12.1 水下爆炸 S-ALE 計算 ·············· 374
12.2 繞柱流 ICFD 計算 ····················· 384
12.3 激波管 CESE 計算 ···················· 388
12.4 渦電流 EM 計算 ························ 393
12.5 電磁軌道炮發(fā)射 EM 計算 ········ 397
12.6 料倉落料 DEM 計算 ················· 405
12.7 參考文獻(xiàn) ···································· 410
第 13 章 重啟動分析 ····························· 411
13.1 小型重啟動分析 — SHPB
計算 ············································ 412
13.2 完全重啟動分析 — SHPB
連續(xù)打擊計算 ···························· 417
13.3 參考文獻(xiàn) ···································· 421
第 14 章 若干計算問題的解決方法······ 422
14.1 求解算法的選擇 ························ 422
14.2 關(guān)于計算結(jié)果的準(zhǔn)確性和可
信度的討論 ································ 422
14.3 LS-DYNA 求解時間的決定
因素 ············································ 423
14.4 減少 LS-DYNA 求解時間的
方法 ············································ 424
14.5 LS-DYNA 求解中途退出的
原因和解決辦法 ························· 424
14.6 沙漏出現(xiàn)的原因和控制方法 ···· 426
14.7 質(zhì)量縮放 ···································· 427
14.8 六面體單元中的負(fù)體積現(xiàn)象 ···· 428
14.9 負(fù)滑移能（接觸能） ················ 429
14.10 參考文獻(xiàn) ·································· 430
第 15 章 LS- -DYNA 前后處理軟件
LS- -PrePost 簡介 ···················· 431
15.1 界面布局 ···································· 432
15.2 鼠標(biāo)與鍵盤操作 ························ 433
15.3 主菜單 ········································ 433
15.4 頁（Page） ································ 436
15.5 動畫控制 ··································· 442
15.6 渲染熱鍵 ··································· 443
15.7 通用選擇界面 ···························· 445
15.8 LS-PrePost 命令行和批處理 ···· 446
15.9 常用后處理操作舉例 ················ 447
15.10 參考文獻(xiàn) ·································· 454
附錄 ·························································· 455
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