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icepak的结果怎么在ansys进行应力分析?

我将icepak的结果导入ansys之后,能获取温度,但是不能进行热应力分析,现在想利用计算的结果进行热应力分析,如何才能做到?请高手指点!


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大神点评6

icepak 2011-5-1 09:22:20 显示全部楼层

必要时得编制专门的程序将温度结果插值映射到结构网格上。

最凉 2011-5-1 09:22:20 显示全部楼层

那不是要自己做接口了,还是在ansys里直接做热结构耦合好了。Icepak早被ansys收购了,期待软件的整合啊!

Nidec 2011-5-1 09:22:20 显示全部楼层

如果温度结果已经导入,就没必要了,将温度作为结构单元的体载荷加上即可。可以看看ansys的关于热固耦合的一章。

凹凸曼 2011-5-1 09:22:20 显示全部楼层

如图所示;
可以直接把ICEPAK计算的热结果输出到ANSYS里,进行应力分析!


12.JPG (55.9 KB)



烟火 2011-5-1 09:22:20 显示全部楼层

Icepak to Ansys


這邊有詳細的操作說明
不過我是有成功讓ANSYS讀取資料
但沒有使用ANSYS來作分析過

Icepak to Ansys

The rfl file can be read in ANSYS in the following way:
1. Start up ANSYS with the Multiphysics license and under ANSYS Main Menu go to General Postproc > Data and File Opts and read in the *.rfl file generated from Icepak.
2. Go to Read Results, expand the list and click on First Set. Alternatively you can read in the data set by issuing the SET,FIRST command in the ANSYS command prompt
3. Go to List under the Multiphysics Utility Menu across the top and select Nodes from the dropdown list. This will ask you whether you want to display the node coordinates only or the angles as well and then display a list of all the nodes.
Similarly selecting Elements > Nodes+Attributes will generate a list of all the elements along with the materials and the nodes information
4. Go to Plot under the Multiphysics Utility Menu and select Nodes/Elements to plot them in the graphic display.
5. Under Plot > Results > Nodal Solution > Contour Plots > DOF Solution you can view the available solution variables. Clicking on one of them will generate a contour plot of the corresponding variable in the display.
Geometry information is not available thorugh the rfl import into ANSYS. It requires the database to be able to display individual geometries in your model. However you can select elements based on their material type and then plot just the selected
material to be able to get information about individual geoemtries in the solution data.

The procedure is as follows
1. Go the ANSYS command prompt and type in esel,s,mat,,material_number . This will select all elements with the corresponding material_number(1,2,3...). The
material numbers can be obtained by viewing the list of all the elements as mentioned in 3 under the reading in .rfl file list above.
2. Go to Plot under the Multiphysics utility menu and select Replot. This will regenerate a plot of all the elements associated with the selected material. Now you can again view contour plots/vector plots by going to Plot > Results > Nodal
Solution > Contour Plots > DOF Solution and selecting the appropriate solution variable.
3. Alternatively temperature, pressure, velocity etc. contour displays can be generated by typing in: plns,variable in the command prompt. variable takes the values of temp,vx,vy,vz,density,pressure for temperature,x,y,z velocity
components, density and pressure respectively. Similarly plvect,v will plot the velocity vectors from the solution data.
说不清 2011-5-1 09:22:21 显示全部楼层

我的想法是
當ANSYS讀進Icepak的分析結果時
在ANSYS的element中可以發現多了ANSYS的fluid element(我不記得編號是多少)
但幾何部分要在ANSYS中自行建立,要與之前Icepak分析幾何一樣

所以應該是,ANSYS只是將Icepak的分析結果作為流場與溫度的初始邊界條件
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