Re: [問題] ANSYS 自重分析
在網路上找到了University of Alberta的ANSYS教學
http://www.mece.ualberta.ca/tutorials/ansys/IT/Density/Density.html
其中自重分析它利用的單位是
length (mm)
Young's modulus EX: 200000 (MPa)
Density DENS: 7.86e-6 (kg/mm^3) ?
---->因此質量應該是用 kg
關於加速度的說法
The following window will appear.
Fill it in as shown to define an acceleration of 9.81m/s2 in the y direction.
Note: Acceleration is defined in terms of meters (not 'mm' as used throughout
the problem). This is because the units of acceleration and mass must be
consistent to give the product of force units (Newtons in this case).
Also note that a positive acceleration in the y direction
stimulates gravity in the negative Y direction.
所以不管質量單位，加速度仍然為9.8 @@
※ 引述《cklittlepig ()》之銘言：
: 單位上如果使用了kg mm的系統
: 那加速度該使用9.8m/s^2
: 還是9.8e3 mm/s^2呢?
: 直覺上用下者
: 但是朋友說help裡面說都用9.8即可@@
: 有人知道確切的設定方式嗎?
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◆ From: 61.62.111.22
※ 編輯: cklittlepig 來自: 61.62.111.22 (08/19 13:12)
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