autodesk nastran for solidworks

寂靜天花板

What’s in a name? When it’s Nastran, quite a lot. As many readers of this  article may know, NASA originally developed the program in the late 1960s. It  enabled the accurate and efficient design and analysis of space structures, and  takes its name from the acronym for NASA STRuctural ANalysis. Today, it provides the  foundation for many advanced finite element software packages.
3 L$ ]! a$ s- r& j+ SWhen I first heard that Autodesk purchased NEi Software, and its flavor of  the Nastran solver, I didn’t pay much attention since my main simulation  platform is SOLIDWORKS. Soon thereafter, I heard that they were developing an  integrated solution within SOLIDWORKS. I became interested but cautious in  considering how well this integration would be executed and unsure about the  timetable. Well, the timetable was sooner than I expected and in this article I  will take a look at the resulting product known as Autodesk Nastran In‐CAD for  SOLIDWORKS.
autodesk nastran for solidworks，用于有限元分析的第三方插件，下面以一個實(shí)例來演示插件使用。
  M7 [2 {) e. i/ }! O軟件安裝后，在soldiworks插件管理器啟動該插件
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啟動插件后，會在solidworks選項卡列中新增一個選項卡
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4 f' Y4 E3 U0 |7 u5 r+ y選擇這個選項卡，會發(fā)現(xiàn)autodesk nastran分析界面，與solidworks simulation分析界面相似。
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4 i" v5 J3 s5 `, j7 C8 ?* a開始分析，新建分析類型，選擇靜應(yīng)力分析
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定義載荷與約束條件

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% q' W9 X, j$ {" m8 N7 x劃分網(wǎng)格時，彈出警告，原來沒有賦予模型以物理屬性

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+ T7 |  X2 b9 n0 L. Y: Z5 M確定物理屬性
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# B/ J6 L3 P! c% h+ }  A確定載荷條件

, y6 b  P" r4 V. p$ c+ W$ u確定約束條件
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對比下solidworks simulation夾具對話框


7 g6 Q6 u4 d2 @開始分析，autodesk nastran會顯示求解過程
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分析完畢后還會有有限元模型的原始文本文件，這對于大多數(shù)用戶而言沒什么用處，但對于分析師進(jìn)行高級調(diào)試是必要的。
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1 I, ^1 r; N5 t$ F% s. [$ L6 e后處理結(jié)果選項
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云圖


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Autodesk Nastran in-CAD offers a very powerful FEA tool to users who want the benefit of ease of geometry creation with Autodesk Nastran’s ability to abstract loads and boundary conditions beyond what is represented by the solid model geometry. Some flaws I discovered, such as geometry/FEA associativity, may already be addressed in the next version, which is now available.
0 a5 r+ ?6 t; \0 eThe compromise with many CAD-embedded FEA tools is that the analysis tool is limited in its physics capabilities and gives the user limited access to the fundamental architecture of FEA: nodes, elements and boundary conditions. When needed, the Autodesk Nastran In-CAD product offers a transparent view of these details. Many users will find that this better aids the understanding of an FEA model from geometry creation to solver. Any discussion of FEA model accuracy has to start with how well the model is understood by the engineer, and this product represents a unique offering in this area.
* B5 [% Q% w3 Z5 k) c% ]% iAutodesk Nastran In‐CAD for SOLIDWORKS is an interesting product that brings integrated CAD/FEA tools to a new level. The combination of a proven multi-physics engine like Autodesk Nastran, coupled with the geometry-modeling engine of SOLIDWORKS, has the potential to set the tone for advanced CAD-embedded finite element analysis.
) @* t9 W6 D' V0 h5 y' ?# yautodesk nastran是個強(qiáng)大的工具，與solidworks集成的插件是個有趣的產(chǎn)品，這樣有限元模型與實(shí)體模型幾何關(guān)聯(lián)，幾何形狀的變化會及時反饋。原先只有solidworks simulation才會在幾何形狀變化時重新定義載荷與邊界條件，現(xiàn)在autodesk nastran這個第三方插件也同樣如此。
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老狼_123

比simulation使用稍復(fù)雜。。另外一個沒中文嗎？

寂靜天花板

NEiWorks是nei nastran提供給solidworks用戶的一個嵌入式的有限元建模工具。自2004年引入solidworks,它的特點(diǎn)是完全無縫集成于solidworks界面上的設(shè)計和分析。關(guān)于NEi 軟件公司是NEI Nastran的有限元分析（FEA），工程仿真，虛擬測試軟件的全球供應(yīng)商。 工程師的數(shù)字原型，圖像，等高線圖，圖表深入了解，以及線性和非線性結(jié)構(gòu)應(yīng)力，變形，動力學(xué)，振動，運(yùn)動學(xué)，沖擊，傳熱和流體動力學(xué)（流體力學(xué)動畫）模擬。公司創(chuàng)始人花費(fèi)4年時間重寫nastran代碼，使其可以運(yùn)行于windows系統(tǒng)，于上個世紀(jì)90年代創(chuàng)立nei nastran。
! y1 L% z4 v) E! V/ n3 q/ A' V目前,NASTRAN的商業(yè)版本有MSC軟件公司的MSC.Nastran、NEi軟件公司的NEi Nastran以及西門子PLM軟件公司的NX Nastran。NEi Nastran是一個功能強(qiáng)大的，能適合多種計算意圖的有限元分析工具，它與用戶圖形界面和模型編輯器集成在一起，可以分析線性和非線性應(yīng)力、動力學(xué)、結(jié)構(gòu)和機(jī)械部件的熱傳遞特性。NEi Nastran代表了市場上最新的有限元技術(shù)，它也是計算速度最快的有限元程序之一，它的計算精度經(jīng)過各行業(yè)近20年的驗證。NEi Nastran可以在各種平臺上運(yùn)行，可以在32位和64位Windows是運(yùn)行，也可以在Linux操作系統(tǒng)上運(yùn)行。
$ r( T# ~% S7 M& q, E) E! b. H2014年5月，autodesk公司收購nei軟件公司，隨之nei nastran更名為autodesk nastran，neiworks更名為autodesk neistran for solidworks。
http://player.youku.com/player.php/sid/XNTE0MTEwMzg0/v.swf
http://player.youku.com/player.php/sid/XODE4OTA4Mjg4/v.swf

fzh2933

與 Solidworks自帶的 Simulation比較有什么優(yōu)缺點(diǎn)？

呼啦啦123

某寶上有中文版的，不過英文也沒那么復(fù)雜

寂靜天花板

autodesk nastran2016 for solidworks 插件_lz0  64位版本
; v/ a& D5 T! Y2 F# _autodesk nastran2016 獨(dú)立程序_lz0 64位版本
( M0 x. M0 b+ m* yhttp://pan.baidu.com/s/1o6kh0uA   密碼：dtba