follower force
Answers
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Altair Forum User said:
the same video i've shared before for rigids shows how to create beam elements.
you should find something in Altair University or their youtube channel.
for your model, having only the disks geometry modelled into the CAD is enough, including the points for attaching the beams.
In HM you will create first the 2D mesh, using the fixed points as reference.
I'm attaching a very basic video as well, but again, go after some training material in Altair University.
Hello Mr adriano , How did you create the four nodes on each circle !!!
<?xml version="1.0" encoding="UTF-8"?>
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Altair Forum User said:
the same video i've shared before for rigids shows how to create beam elements.
you should find something in Altair University or their youtube channel.
for your model, having only the disks geometry modelled into the CAD is enough, including the points for attaching the beams.
In HM you will create first the 2D mesh, using the fixed points as reference.
I'm attaching a very basic video as well, but again, go after some training material in Altair University.
Hello Mr adriano , How did you create the four nodes on each circle !!!
<?xml version="1.0" encoding="UTF-8"?>
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these are originally 4 geometry points in each circle, so HM forcelly creates nodes on them.
I've created them as fixed points in the 'quick edit' panel.
selecting one line and adding a N points. Usually circles have only 1 point. You can add 3 more.
<?xml version="1.0" encoding="UTF-8"?>
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Altair Forum User said:
these are originally 4 geometry points in each circle, so HM forcelly creates nodes on them.
I've created them as fixed points in the 'quick edit' panel.
selecting one line and adding a N points. Usually circles have only 1 point. You can add 3 more.
<?xml version="1.0" encoding="UTF-8"?>
My co-supervisor told me that , as long as you came across this software where you can model a follower force on our robot , then stick to it but the problem is in my univ no one has used hypermesh and none of the teachers heard about it , thus it is of a great interest . I will mention you in one of my chapters Mr adriano . thank you so much for your valuable help
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Altair Forum User said:
these are originally 4 geometry points in each circle, so HM forcelly creates nodes on them.
I've created them as fixed points in the 'quick edit' panel.
selecting one line and adding a N points. Usually circles have only 1 point. You can add 3 more.
<?xml version="1.0" encoding="UTF-8"?>
Hello Mr adriano , when I emported this design from solidworks to hypermesh , it does not allow me to create RBE2 and SPC ..etc , is there ny solution! , or can we create that in hypermsh and aplply that follower force .
the mechanism conssists of a flexible beam with a number of disks attached to it , I just want to analyse how it bends !!<?xml version="1.0" encoding="UTF-8"?>
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Altair Forum User said:
Hello Mr adriano , when I emported this design from solidworks to hypermesh , it does not allow me to create RBE2 and SPC ..etc , is there ny solution! , or can we create that in hypermsh and aplply that follower force .
the mechanism conssists of a flexible beam with a number of disks attached to it , I just want to analyse how it bends !!<?xml version="1.0" encoding="UTF-8"?>
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what do you mean by ' it does not allow me to create RBE2 and SPC'??
What have you tried? What steps did you try?
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Altair Forum User said:
what do you mean by ' it does not allow me to create RBE2 and SPC'??
What have you tried? What steps did you try?
AS long as I was not able to draw this robot on hypermesh , I tried it on solidworks then emported it on hypermesh, but when I wanted to fix the robot from the bottom and apply the follower force on the top I was not able to do that !!!
<?xml version="1.0" encoding="UTF-8"?>
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After applying the force and the constraints , I would like to have something like that(see the picture), knowing that the bending in this picture was not done using follower force , in my case I would like to be the first one who does it !!
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Altair Forum User said:
After applying the force and the constraints , I would like to have something like that(see the picture), knowing that the bending in this picture was not done using follower force , in my case I would like to be the first one who does it !!
<?xml version="1.0" encoding="UTF-8"?>
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I'm trying to understand what exactly have you accomplish so far?
Do you have a valid mesh already? Do you have your material data inside HM?
Do you have your properties created?
I've not seen any of this yet in your pictures. So I can't help at all, unfortunately.
I already understood what you're trying to build. But I don't understand what you got done so far in FE model.
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Altair Forum User said:
I'm trying to understand what exactly have you accomplish so far?
Do you have a valid mesh already? Do you have your material data inside HM?
Do you have your properties created?
I've not seen any of this yet in your pictures. So I can't help at all, unfortunately.
I already understood what you're trying to build. But I don't understand what you got done so far in FE model.
I h
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Altair Forum User said:
I'm trying to understand what exactly have you accomplish so far?
Do you have a valid mesh already? Do you have your material data inside HM?
Do you have your properties created?
I've not seen any of this yet in your pictures. So I can't help at all, unfortunately.
I already understood what you're trying to build. But I don't understand what you got done so far in FE model.
I have not done anything due to the software hypermesh itsef , the design I showed you was made on soldiworks , then I emported it in hypermesh. please find the attached file of the design in solidworks .
the material is already defined in solidworks , ( flexible beam from any flexible material ) ( disks made from carbon fiber ) thats all0 -
You didn't understand what HM is. I'm sorry.
You will import yoir geometry and build your model insode HM from scratch, creating your mesh, adding materials, bcs, etc.
Unless in SolidWorks you can export your mesh in Mastran format, so that it could be used, saving some work. Orherwise you will need to build your FE model from the beginning.
I recokmend you to start from Inspire as it creates a very moce initial model for you amd it is easy to use. Then export the model to HM.
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Take a look at this small video for a linear static model starting from scratch, using 2D and 1D elements.
You could use something similar to that. In the past topics I`ve already shown you how to create the follower force (NL case).
You have to try and improve in HM/OS.
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Altair Forum User said:
You didn't understand what HM is. I'm sorry.
You will import yoir geometry and build your model insode HM from scratch, creating your mesh, adding materials, bcs, etc.
Unless in SolidWorks you can export your mesh in Mastran format, so that it could be used, saving some work. Orherwise you will need to build your FE model from the beginning.
I recokmend you to start from Inspire as it creates a very moce initial model for you amd it is easy to use. Then export the model to HM.
You did not get me well but it is okay I will figure it out myself , thank you for your response
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Altair Employee
