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Found 18 results

  1. Hello, I'm trying to optimize a tubular frame (PBEAML). I can only optimize inner and outter radius via discrete design values. I would like to optimize the thickness or to choose standard tube dimensions to get the best results I could buy in real shops, as the results I get are always big outter radius tubes with small thickness (unavailable in any shop). How can I do this? Thank you.
  2. Hı everyone, I want to do compressive analysis with optistruct. My compenent is Sheell so I used to PSHELL card. But the program want from me T parameter. I know T is Thickness and shoul be greater than one. but I dont know is it component thickness or other somethink. How do I adjust it. Thank you. .
  3. Hi all I would like to get a list of thickness for selected elements. I wrote these codes but it gives just one thickness as a result. Could you please help me ? *createmark elements 1 179 79 150 279 35 ... set test [hm_getthickness elements 1] foreach elements $test { puts "$test" }
  4. Hello, I am in need of help setting up an Optistruct run. I want to optimize wall thickness with a upper limit on stress. I have used a 2D automesh and I have a DTPL that veries wall thickness of the main body a base of 1.0mm to 10mm (defined by material property). I have the objective of the Optimization to Minimize VolFrac, and the responses set to VolFrac and StaticStress. Lastly I have set the upper bound of StaticStress to be the Failure stress with a OptimizationConstraint. Whenever I run the Optimization the wall thickness does not very with every iteration (stays at 1.0mm). Attached is my .hm model. Is there a tutorial that shows you how to do this? Thanks! V4SwingThic1.hm
  5. Hi there, I wanted to know if it's possible to define thickness steps when performing topology optimization using Optistruct. For example assume there is a body of PSHELL elements, Initial thickness is 10 and base thickness is 2.5 and between these two values only 6 is permissible. Or in another case only 8.5 and 2.5 are possible for final part. How can I go with this kind of problems? The real problem is to decrease some deflections of sheet metal parts by adding welded patches so thickness in different regions can not be any value. For example if initial thickness is 2.5 mm then I want to improve strength by only welding some 6 mm thickness patches to it so optimization output must be only 2.5 and 8.5 mm thickness. Please let me know if my question is not clear. Thanks in advance.
  6. Hello everybody . Please support for me ! For example, i have 5 components and set properties . I want to edit card element . Convert option from BLANK to OFFSET . Offset value = 1/2 thickness of component . Then show 2D detailed to check Thickness . How to write a tool tcl to perform that operation ?
  7. Hey guys, In Hypermesh, under the Ansys User Profile; I cannot seem to figure out how to show shell thickness offsets. Example: 1. I apply a thickness of .5" to a Shell181 group of elements 2. I change the Section Property SECOFFSET optio to TOP / BOTTOM / USER instead of MID 3. Hypermesh still shows the thickness at the middle of the element. To parallel this, I know that the Nastran user profile will correctly display Nastran imposed ZOFFs applied to PSHELL cards. This is the desired affect I am looking for graphically in Hypermesh for the Ansys User Profile. Does anyone know how to view the thickness offsets applied with SECOFFSET in Ansys? Thank you, -aero
  8. HyperView単体での板厚の3次元表示は現在のところ出来ませんが、HyperMesh DesktopとHyperViewを組み合わせることで、板厚の3次元表示(立体表示)が可能です。 HyperMesh_Contour_and_ThicknessVisualiztion.mp4
  9. I have problem with thickness assign, i have only one mid- surface that comes from an assembly and i wanna assign different thicknesses to componets of this surfaces. is there a way to do it ? i created to different properties on my model folder.
  10. シェル要素に対し、オフセットした板厚を設定する方法です。 ※User Profile = OptiStructの場合 プロパティのエンティティエディタか、Card Editから "ZOFFS" オプションで設定します。     下記2通りの設定方法があります。   ◎REAL    オフセット量を数値で入力します。   ◎SURFACE    TOP または BOTTOMを選択します。
  11. 入力ファイルのシェルメッシュの板厚値でコンター表示するには、 Derived Resultsを使用すると可能です。
  12. HyperMeshのComparison機能を用いてメッシュ形状の比較は出来ますが、板厚やマテリアル情報なども含めて比較したい場合は、HVVH(HyperWorks Verification and Validation Harness)ツールを用いると便利です。 一般のテキストエディタの場合、記述行が違ったり、各値の右詰/左詰が異なるだけでも違いがあると判定されますが、今回ご紹介するツールを用いるとそれらを無視した比較が可能です。 なお、当機能の利用には、HyperWorks Desktop2017.2.3のアップデートが必要です。 ①Windowsのスタート⇒HyperWorks⇒Toolsから、HyperWorks Verification and Validation Harnessを起動します。 ②PVVタブ⇒FE Model⇒FE Model comparison機能で、各項目を設定します。 ③ボタンを押すと、比較が開始されます。 ④Model Compareに、Passと表示された場合は差分がありません。Failと表示された場合はFailボタンを押すと下図のように、差分が表示されます。
  13. Hi all, How to get shell thickness that is defined in the shell property through hm_getvalue property id=1 dataname=136 But I need to use attributename of the attribute id 136 to find the name if I use hm_attributenamefromid 136 it gives the list name where real constants are defined. Can anyone help with this. Thanks, mahes
  14. Hello, I'm currently attempting to do a study in which I created a simple square mesh. A pressure is applied perpendicular to the entire surface and the geometry is constrained along two parallel edges of the square. I'd like to observe the change in element displacement as the thickness varies. Is there any way to do this by parameterizing the thickness within the PSHELL component? I have attached an image of the setup to clarify.
  15. Is there a way to optimize the thickness of a bracket (solid 3D model) in Optistruct?
  16. Hi, I have been doing some size and composites optimizations and have been working with 2D elements. I want to export the geometry including the results of the thickness of my elements/plys to visualize in other prgramms (eg iges, step). Is this possible? if so how? thanks Diego
  17. Hi everyone, I´ve encountered a problem when using hypermesh. I have imported and meshed a wing that has the following shape: The problem appears in that sharp line, because when the laminte is created, it intersects in this point. Here is a picture: The cad file is made out of one only surface, so the problem should not be there. In a previous try with the cad made of two faces the same problem appeared, and when simulating I found out the surface was split through that edge. Here the picture. So I am afraid I am going to have the same problem once again with the model of only one surface. The possible sources of error that I can figure out are the model, the messing or the creation of the laminate. This last one actually looks like this: So I would be very grateful if anyone could tell me what things could be made to solve the problem I have.
  18. Hi All, I have a 3D mesh composed of hex elements of a component that looks like a human rib. How can I change the thickness of this 3D mesh in an effecient way? For example, if want the increased the thickness of this component by 10%, what are some to accomplish this? This mesh does not have any surfaces associated with it. So far, I have been translating the nodes of the 3D face elements along a vector to increase the thickness and I am curious if there is a better way. Any help will be appreciated! Cheeres, Sriram
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