this techniques are very helpful especially when meshing complex geometries, glad there is a channel like this with useful hypermesh fundamentals content :)
Geometry editing is one of the powerful features in hypermesh and you've done a great job explaining all the necessary tools for surfaces.. I also often use extend surfaces (lines: to extend over and surfs: to target) which allows to extend the selected surfaces to the targeted surfaces without deleting the unwanted extended surfaces. But again it is the user's preference how they want to connect surfaces. Great videos always!
Thanks! I always delete the unwanted parts as it complicates the meshing process. But like you said, totally depends on the user's choice. The surface edit panel is surely the most used panel for geometry editing, every tool is important!
Hello, I'm trying to create cylinders from a line... I know Hypermesh is not the best CAD software but it is the one I have more experience with. Is it possible to create cylinders/tubes out from a line? Regards
Hey Vicente, good question! I guess you have to create a circular line perpendicular to the axis line and then drag it along the axis to create the cylinder. But this is definitely very tedious and I would not recommend it!
Hey bro nice vid i have been working on with similar method on a chassis but the problem begins when there are more than 4 pipes connected at a joint. While trimming, the circularity of the pipe is not maintained and it turns to some irregular geometry or tears apart if you faced a similar issue, please reply with a solution to this🙂
Hey Varad, I understand what you are talking about. I have faced similar issue many times! Even though there is no definite solution to this problem, I can provide some tips which can make a change! If you observe, the sequence which you use to trim and extend the pipes affects how and at what position the surfaces are cut. By changing the sequence, we can avoid some of the warping and irregular surface extension. For example, extending a pipe with smaller diameter into another one with larger diameter is always better than the other way! In some cases, we try to merge small gaps between surfaces by toggling the free edges. This causes warpage. Instead, create a filler surface in the gap. Then suppress one of the edges to avoid creation of small elements. I hope these tips help you resolve some of the geometry editing problems you are facing!
Hello Sir, thanks for the good video. At the extraction options in the auto midsurface panel, you can choose between skin offset/offset/offset+planes/offset+planes+sweeps. I do not quite unterstand the difference between these options and how they affect the extracted midsurface. I hope you can help me. Thank you, best regards.
Thanks Lennart! Yes, these are some advanced options provided for accurate midsurface extraction. It is not possible for me to explain how these options work in a text response. I would suggest you to go through the HM user manual to get a better understanding about this. Feel free to write an email if you still have doubts after going through the user manual. My contact details are provided in the 'About' section of this channel.
Yes we can extract midsurfaces for I sections as well. But note that the flange and web thicknesses are not constant throughout the cross-section. When you apply the thickness to midsurface, it is not variable from region to region. It is constant. This will result in some loss of accuracy. If possible, try to create a hexapenta mesh to avoid loss of accuracy.
Abaqus and Ansys are solvers. They are linked with preprocessors to create a mesh. It is possible to create a hexa penta mesh in any FEA preprocessing software.
Sir, in my desk one green line in longitudinal axis for one pipe, that's why i am palced nodes using quick edit panal and not cut/trim a pipe. Plese tell me how can i placed/edit one green line to 2 green line
I'm assuming you are trying to say that your pipe only has one edge line parallel to the central axis. In this case, you have to create a temporary surface to cut the surface. Node to node trimming will not work.
can you post a video containing midsurface extraction and surface editing for solid tubular frame, like here you have used surface bodies but how to deal with solid bodies, I tried but could not succeed, it would be of really great help
Hello sir, plz tell me, What was the problem, in auto middsurface thickness , few element were created or few element failed, in 2D, Plz Make related few videos
![How to Optimize 3D Tetramesh : Hypermesh Tutorial [2 METHODS]](http://i.ytimg.com/vi/_4PK9LJKXWE/mqdefault.jpg)
![How to Optimize 3D Tetramesh : Hypermesh Tutorial [2 METHODS]](/img/tr.png)
this techniques are very helpful especially when meshing complex geometries, glad there is a channel like this with useful hypermesh fundamentals content :)
Thanks Vincent :)
Geometry editing is one of the powerful features in hypermesh and you've done a great job explaining all the necessary tools for surfaces.. I also often use extend surfaces (lines: to extend over and surfs: to target) which allows to extend the selected surfaces to the targeted surfaces without deleting the unwanted extended surfaces. But again it is the user's preference how they want to connect surfaces. Great videos always!
Thanks!
I always delete the unwanted parts as it complicates the meshing process. But like you said, totally depends on the user's choice.
The surface edit panel is surely the most used panel for geometry editing, every tool is important!
Really brother expecting more videos like this one . my humble request..
I will work on it 👍🏻
Great video!!! Could you please make a tutorial on how to extract mid-surface of complex geometries? Thanks!
I am glad you liked the video!
Thanks for the suggestion. I will work on this topic soon :)
Hii Good Evening,
I want to know what is the standard geometry cleanup tolerance value for mm units
Hello, I'm trying to create cylinders from a line... I know Hypermesh is not the best CAD software but it is the one I have more experience with. Is it possible to create cylinders/tubes out from a line? Regards
Hey Vicente, good question! I guess you have to create a circular line perpendicular to the axis line and then drag it along the axis to create the cylinder.
But this is definitely very tedious and I would not recommend it!
Hey bro nice vid i have been working on with similar method on a chassis but the problem begins when there are more than 4 pipes connected at a joint. While trimming, the circularity of the pipe is not maintained and it turns to some irregular geometry or tears apart if you faced a similar issue, please reply with a solution to this🙂
Hey Varad, I understand what you are talking about. I have faced similar issue many times! Even though there is no definite solution to this problem, I can provide some tips which can make a change!
If you observe, the sequence which you use to trim and extend the pipes affects how and at what position the surfaces are cut. By changing the sequence, we can avoid some of the warping and irregular surface extension. For example, extending a pipe with smaller diameter into another one with larger diameter is always better than the other way!
In some cases, we try to merge small gaps between surfaces by toggling the free edges. This causes warpage. Instead, create a filler surface in the gap. Then suppress one of the edges to avoid creation of small elements.
I hope these tips help you resolve some of the geometry editing problems you are facing!
Sir, new version of hypermess having a bug or what
Hello Sir, thanks for the good video.
At the extraction options in the auto midsurface panel, you can choose between skin offset/offset/offset+planes/offset+planes+sweeps. I do not quite unterstand the difference between these options and how they affect the extracted midsurface. I hope you can help me. Thank you, best regards.
Thanks Lennart!
Yes, these are some advanced options provided for accurate midsurface extraction. It is not possible for me to explain how these options work in a text response. I would suggest you to go through the HM user manual to get a better understanding about this.
Feel free to write an email if you still have doubts after going through the user manual. My contact details are provided in the 'About' section of this channel.
@@Aeroswap Thank you for the fast reply. I will try to understand it with the HM user manual and will concact you if necessary.
Best regards
Great job sir
If ISMB and ISMC comes then what we do
Hi Bibin,
The geometry cleanup process remain the same regardless of what code/standard is selected for the design.
@@Aeroswap can we extract mid surface for I beam also??
Yes we can extract midsurfaces for I sections as well. But note that the flange and web thicknesses are not constant throughout the cross-section. When you apply the thickness to midsurface, it is not variable from region to region. It is constant. This will result in some loss of accuracy.
If possible, try to create a hexapenta mesh to avoid loss of accuracy.
@@Aeroswap is it possible to create hexa penta mesh using abaqus or ansys
Abaqus and Ansys are solvers. They are linked with preprocessors to create a mesh. It is possible to create a hexa penta mesh in any FEA preprocessing software.
Sir, in my desk one green line in longitudinal axis for one pipe, that's why i am palced nodes using quick edit panal and not cut/trim a pipe. Plese tell me how can i placed/edit one green line to 2 green line
I'm assuming you are trying to say that your pipe only has one edge line parallel to the central axis. In this case, you have to create a temporary surface to cut the surface. Node to node trimming will not work.
can you post a video containing midsurface extraction and surface editing for solid tubular frame, like here you have used surface bodies but how to deal with solid bodies, I tried but could not succeed, it would be of really great help
Thanks for the suggestion. I will work on this topic soon!
Sir please upload more videos on hexmeshing of complicated structures.Thank you in advance sir
Yes, I will be making more videos about complex hexmeshing soon. Stay tuned !
Hello sir, plz tell me,
What was the problem, in auto middsurface thickness , few element were created or few element failed, in 2D,
Plz Make related few videos
Yes, as I said the auto tools do not work in every case. That's why manual midsurface extraction and meshing must be used.