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Transient Thermal Analysis using Hypermesh [Optistruct Tutorial]
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- čas přidán 15. 08. 2024
- In this Optistruct tutorial, we will perform a transient thermal analysis using Hypermesh. This will be a linear transient heat transfer analysis of exhaust manifold.
CAD Model Link : drive.google.c...
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another amazing tutorial! Cannot be created better than this
hats off!
Thank you :)
Been waiting for this. Thankyou.
In card image, There's no TLOAD1. And some other cards are also missing like slave1/2
Please help how can i enable them!!
Hi Bilal, make sure that you are using the Optistruct interface of Hypermesh. You will not find these options in any other solver interface.
Thanks bro. Helped me brush up thermals
Good health, please tell me how to open RTH files. I’m interested in how the temperature is distributed over the cross section regardless of time, namely over the cross section, that is, the coordinate points of the surface of the part
Maybe CFD Tutorial for Pump will be useful for us too :) BTW thanks @aeroswap for tutorials, great job
nice video. can you make a tutorial on thermal analysis of resistance spot welding using Optistruct? hope to see more tutorial from you
Thanks for the suggestion. I will work on this topic soon!
i have question, for the ambient temp node, why you place the node there? or is it can be place anywhere near the model?
Hi Adib,
The ambient node can be placed anywhere in the model. It's location does not affect the analysis. The only reason why I created it near the pipe is because it was easy to extract the center node.
@@Aeroswap i see. got it thank you sir
There is no TABLED1 option on curves... i have just LINEAR option. I'm using the 2019 hypermesh version
can you make the same video with the new software 2023 version
@aeroswap Hi Guys ! have you posted any videos for fatigue ?
Not yet. I am working on a fatigue analysis tutorial. Hopefully, it will be posted soon!
TEMPD card image is used maximum time in thermal analysis. But I didn't know when to use it, could you tell me?
Hi Onkar,
TEMPD defines reference temperature in a thermal analysis. It is used to specify the temperature units (usually Kelvin or degC). As Hypermesh is a unit neutral evnironment, TEMPD provides a base point for the temperature range.
First comment! Nice work Swapnil, Excellent presentation of transient thermal analysis. Btw: How do you change the "D" value on an already defined spc_temp? Thanks!
Thanks Emmanuel :)
For that you can use the card edit option. Set the entity selector to 'Loads' and select that spc. Then you can edit the card and change D value.
@@Aeroswap Thanks for the reply Swapnil
if i use temp of 2000 degrees in spc_temp and spcd_temp as d=1, And in case of spc_ambient as 25 degrees and spcd_ambient as 1. i got my results with error and in my problem i need 2000 degrees temp and 25 degrees ambient temp shouldbe taken. help with this
Hello Sir Im Unable to edit material properties how to resolve this
hi sir
in the load step ( analysis type , heat transfer )
i dont have the IC
why ????
You need to use analysis type as 'Heat transfer transient'. IC will not be available in 'Heat transfer steady state'.
7:07 why did you gave 85 degrees was that in problem statement?
Please make a video of Fatigue analysis of an engine block
(E N Strain Life Method) using FPM in Hypermesh.
Thanks for the suggestion. I will work on this topic soon.
I have a question, in SPCD why we have used multiplier value as 1? what does it signifies?
Thank you and looking forward to your reply
Hi Shashwat,
1 is the scale factor for SPCD. It signifies how much temperature will be applied at the location. If you enter it as 0, you will not get any temperature rise and if you enter it more than 1, you will get a greater temperature rise than shown in this tutorial.
I hope this clears your doubt!
@@Aeroswap Thank you for the reply....got it👍🙌
Can you please tell me how to apply thermal gradient loads for shell elements. Like different temperatures for top fiber and bottom fiber of shell element
Hi Anil,
Shell elements have constant parameters in thickness direction. Hence it is not possible to apply different temperature on sides of the same shell element. To do this, please use brick (hexa-penta) elements.
Hi sir, without linking 3 or more materials with each other for a component in one bulk entry data and keeping each material in one subcase, can we perform a static or thermal or any other analysis and displaying the results for each case(i.e for each material) and by keeping the load collectors for all materials as same. It is possible?
Yes, but you can assign only one material to each component. Therefore, you will have to create separate FEM files if you want to test a particular component with different materials.
@@Aeroswap Thank you sir
Dear Swapnil! One question please:-
You clicked conv_cont while performing Engine Block coupled thermal stress analysis tutorial
but not this time! Can you explain what is conv_cont while linking convection interface to ambient temp. please?
Hi Ali,
It is just a part of creating Hypermesh comments for a specific card (This helps in solver deck export operations). It does not affect the analysis results in any way. You can simply skip that step and complete any thermal analysis setup!
I hope this information helps :)
@@Aeroswap Thank you for this explanation. I understood now
Bro, do you know how we can allocate more RAM and CPU to make the HyperMesh Analysis run fast? Because I have access to High Performance Computer which has 32 CPU's and 128GB RAM.
Thanks and looking forwards to your reply soon.
Hi Gurbaksh,
You use multiple cores to run an analysis faster. This can be done by specifying the below command in options field before launching the solver-
"-nt "
I hope this helps!
@@Aeroswap There is already a command written by default in the options box "-optskip". Should I erase this and then input "-nt" ? or Should I put "-optskip, -nt" ?
-optiskip means the solver will perform the analysis and skip the optimization. As this is just an analysis and not optimization, you can keep it or erase it. Both is okay.
@@Aeroswap Thanks for letting me know what -optiskip means, I wasn't aware before. But unfortunately, when I am giving it a go I am not getting the .mvw file which I usually use to get. Also, I am not able to see the HyperMesh Analysis Progress window while following this approach.
Alright. Try entering '-analysis' and run again. See how it goes!
please make a video on Transient Structural Analysis
Hi Ashish,
A detailed tutorial about transient structural analysis has already been posted. You can find it in the 'Optistruct Tutorials' playlist of this channel.
Hello,
Iam trying to important stp file in hypermesh. while importing the file iam facing error, called "segmentation error". Please help me to solve this problem
This is stp file once check bro
Please make sure that all import settings are kept on their default values. The default setting work best for STEP/STP import.
I imported by default only in stp so. I got this "segmentation error"
sir, while importing this geometry error is coming the file specified is not a hypermesh database
bro make a video Axisymmetry using Linear Static Analysis
Thanks for the suggestion. I will work on this topic soon!
I saw your composite tutorial but can u make another one with a more complicated structure .......is there anyway I can contact u ?
Hi Atharva,
My email address is given in the 'About' section of this channel. Feel free to contact me via email.
Thanks.
@@Aeroswap what can we do to see flux and temperature gradient ??
This can be done by selecting 'Flux' option in global output request card.
Hi sir i'm using hyperworks 2019, I did as you instructed but i got an error '' *** See next message about line 182288 from file:
D:/hyperwork/OptiStruct/heat_themal/transient_themal.fem
"DLOAD 10 1.0 8 1.0 9"
*** ERROR # 1000 *** in the input data:
Incorrect data in field # 3.'' can you help me explain this error? thank sir
Hi Tuan,
Looks like you have missed out on some step in the setup process. Please watch the tutorial carefully and follow every step. It will resolve the error.
Hi sir,
I watched it and did it again but it still have the same error as above. Can i give you my file to you check this error ? thanks sir
Check your DLOAD card. Make sure that S field is set to 1.
@@Aeroswap yes sir field S is 1
The error message states that something is not correctly defined in the DLOAD. Please check all scale factor values. Also check whether you have assigned the DLOAD in correct field in the loadstep.