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FRP玻璃鋼復(fù)合材料論壇

標(biāo)題: RTM仿真軟件RTM-WORX技術(shù)白皮書 [打印本頁(yè)]

作者: caefinder 時(shí)間: 2011-11-26 14:32
標(biāo)題: RTM仿真軟件RTM-WORX技術(shù)白皮書
2011年11月17日 | 標(biāo)簽:
軟件功能和技術(shù)資料

RTM-WORX是一款先進(jìn)的樹脂模注工藝仿真軟件，廣泛用來(lái)模擬RTM、VIP等復(fù)合材料工藝過程中樹脂的流動(dòng)情況，也可以用來(lái)模擬壓力驅(qū)動(dòng)下多孔介質(zhì)中的一般流動(dòng)過程。
該文檔介紹了RTM-WORX軟件的基本功能和技術(shù)信息，如想獲得此軟件的更詳細(xì)信息，請(qǐng)參考軟件的中文地址：http://www.caeda.com.cn 。

簡(jiǎn) 介

RTM-WORX能高效、方便地利用有限元法（FEM）和控制體積法（CVM）求解多孔介質(zhì)中樹脂流動(dòng)過程的物理方程，軟件的設(shè)計(jì)出發(fā)點(diǎn)就是為那些不夠精通有限元代碼，但了解RTM或真空灌注工藝（VIP）的行業(yè)專家提供零件或工藝的優(yōu)化工具。

RTM-WORX的軟件設(shè)計(jì)非常強(qiáng)調(diào)高效性、可靠性和穩(wěn)定性。軟件的數(shù)值計(jì)算精度非常高，即使在最壞的情況下（如壓力成對(duì)數(shù)下降的點(diǎn)注射），也只需150左右的單元就能將誤差降到1%以下。RTM-WORX軟件受單元形狀和尺寸的影響很小，軟件對(duì)所有必需的數(shù)據(jù)都提供了合理的缺省值，即使輸入值出現(xiàn)偏差，模擬過程仍能成功地運(yùn)行。由于FEM或CVM采用相同的離散度，保證了任何情況下計(jì)算過程的收斂和壓力計(jì)算的準(zhǔn)確，以及樹脂流動(dòng)前峰的確定性。同樣的方法也適用于非等溫反應(yīng)模塊，由于用戶可以完全控制計(jì)算的速度和精度，其穩(wěn)定性額是不言而喻的。

RTM-WORX計(jì)算速度非?？?。在目前主流的硬件配置下，對(duì)于一個(gè)2000到4000個(gè)單元的模型，計(jì)算時(shí)間還不足1分鐘。對(duì)非等溫反應(yīng)模型，當(dāng)采用全3D速度時(shí)也只需約兩倍長(zhǎng)時(shí)間，而且能快速給出溫度和固化等信息。
——節(jié)選可以索取

作者: caefinder 時(shí)間: 2012-6-27 14:49
鋪層設(shè)計(jì)分析培訓(xùn)講義分享

作者: caefinder 時(shí)間: 2012-7-19 17:02
熱壓模擬

作者: xmfw 時(shí)間: 2012-11-14 19:42

賣糕的,不懂呵

作者: caefinder 時(shí)間: 2012-11-15 09:24
復(fù)合材料零部件設(shè)計(jì)有專門軟件計(jì)算,可以發(fā)郵件免費(fèi)測(cè)試。

作者: caefinder 時(shí)間: 2013-2-22 10:11
The new ESAComp 4.4.1 version for MS Windows and Linux platforms is now available for customers with a maintenance contract valid untill December 2012.

If you are currently using ESAComp 4.4.0, we highly recommend to upgrade to version 4.4.1, as in version 4.4.0 natural frequencies in panel and cylinder analyses were shown with wrong units (for details see release notes below).

In case you are still working with an older version of ESAComp, we also recommend to upgrade, so that you can benefit from the additional features and material database updates.

作者: caefinder 時(shí)間: 2014-2-7 09:54
標(biāo)題: 回 xmfw 的帖子

xmfw:賣糕的,不懂呵 (2012-11-14 07:42 PM)

想學(xué)就懂

作者: caefinder 時(shí)間: 2014-5-19 15:05
標(biāo)題: 回 caefinder 的帖子

caefinder:The new ESAComp 4.4.1 version for MS Windows and Linux platforms is now available for customers with a maintenance contract valid untill December 2012.

If you are currently using ESAComp 4.4.0, we highly recommend to upgrade to version 4.4.1, as in version 4. .. (2013-02-22 10:11 AM)

中文：開迪數(shù)字仿真科技有限公司

作者: 技術(shù)人員 時(shí)間: 2015-3-5 11:22
價(jià)格多少

作者: caefinder 時(shí)間: 2015-3-6 09:17
請(qǐng)發(fā)郵件詳細(xì)咨詢，可申請(qǐng)免費(fèi)試用：caeda@vip.sina.com ，務(wù)必實(shí)名，您懂的。

作者: caefinder 時(shí)間: 2015-5-20 09:30
3D新版本發(fā)布
Most important to know right now:
** You define a solid region by it's boundary surfaces (like you define
a surface by a closed boundary loop of curves).
** 3D permeability is defined as follows:
- The vector [r3x,r3y,r3z] is used to define the k33 direction, which is
normal to the plane in which the reinforcement lies, e.g. it is the
thickness direction. When this plane has been established, vector
[r1x,r1y,r1z] is projected on it for the k11 direction. The direction of
k22 is perpendicular to k11 in the plane defined by [r3x,r3y,r3z].
** When you define a region, a 3D tetrahedral mesh is automatically
generated, but *not* optimized. The mesh parameter 'e/R' defines the
edge/radius ratio of tets that will be split by inserting an additional
vertex. Use e/R = 0 for no internal vertices (e.g. the tetrahedral mesh
uses only vertices on the boundary surfaces) and e/R = 1 for an
isotropic mesh. Sometimes the mesh generator fails. You can try to fix
this by playing with the Min and Max parameters, and using the [Bounding
box] option. In general, the mesh generator will always succeed to
generate a mesh unless there is a huge difference between the edge size
in your wireframe and/or very small angles.
** Before you run the simulation, optimize the mesh using the [Clean]
button in the mesh generator panel. If you do not do this, the solver
will run much slower and may even terminate before filling is completed.
In any case, expect trouble when the mesh contains slivers: elements
with 0% quality (use the shaded plot 'Element quality' option and shrink
tets to see them). A sliver typically looks like a flat rectangle and
has very small (almost zero) volume but no short edges. On such
elements, the pressure gradient can not be accurately calculated by
linear interpolation in sliver thickness direction.
You have the following parameters and options:
- cN = maximum number of iterations the optimizer will run
- qMin = worst acceptable element (100% is perfect, 0% is extremely bad)
- qEps = measure for improvement of the mesh, independent of the worst
element. This defines what the optimizer will consider an improvement,
even if the worst tet can not be improved.
- [Add points] button: controls whether the optimizer is allowed to add
more points in the region. You can turn this off if you want to have a
coarse tetrahedral mesh combined with a fine(r) surface mesh. However,
it reduces the possibilities for the optimizer to eliminate bad tets.
** Combining runners and shell elements with 3D tets is possible, but
you have to be careful: combination of a single runner with tets (e.g.
using a curve that is an edge of a region) may not produce the results
you want, similar to using an injection point on a surface. Make sure
you define dimensions properly, by also using boundary surfaces to
define injection channels. Tip: you can model the mesh using the top
surface of a region, you don't need to define separate regions.

作者: caefinder 時(shí)間: 2015-6-25 09:16
真3D版推出了！

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