Composite material
Altair EmployeeAnswers
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Hi,
Yes, You can model a ply based or zone based composite model and use OptiStruct to solve the problem.
You can refer to the tutorials available on HyperMesh and OptiStruct help for more details.
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Dear Sir,
For an assembly I have created a mid surface.I have meshed the mid surface.But after meshing in the mid surface assembly how to maintain node to node connectivity between
the mating parts.As an example I have attached two parts 1).Box and Bearing bracket. 2).Box and Mounting bracket.
Can you guide me is there any command to establish node to node connectivity between bearing bracket and box that is radial connectivity ?(Ref.attachment 1).
Also can you guide me to establish node to node connectivity between box and mounting bracket that is connectivity between parallel surfaces ?(Ref.attachment 2)
I will be very much grateful to you if you can give me solution.
Thanking you with Regards,
Yours Sincerely,
V.V.Kuppuswamy
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>
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Hi,
I see there is some gap between bearing and bracket, so node to node connectivity is not possible unless you change the geometry and reduce the clearance. You can use RBE2 to connect both these.
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Altair Forum User said:
Hi,
I see there is some gap between bearing and bracket, so node to node connectivity is not possible unless you change the geometry and reduce the clearance. You can use RBE2 to connect both these.
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Dear Sir,
Thank you for your reply.But you see whenever you create a mid surface of any assembly you are bound to get clearance between mating parts because it only mid surface assembly but not actual assembly.Under these circumstances how do i proceed ?.Also can you give more details of RBE2 which you have mentioned please.?
Thanking you,
V.V.Kuppuswamy
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Dear Sir,
Alternately is there any method of performing 2D meshing on an assembly with out creating mid surface assembly.will you please let me know and also
the procedure,tutorial of the same.
Thanking you with Regards,
V.V.Kuppuswamy
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Altair Forum User said:
Also can you give more details of RBE2 which you have mentioned please.?
Hi,
There are tutorials available on HyperMesh and OptiStruct help on how to assemble parts and components.
<?xml version="1.0" encoding="UTF-8"?>
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Dear Sir,
The various tutorials prescribed by you namely HM-3400, HM-3410, HM-3420, HM-3430, HM-3440 seemed to be very difficult Now only I am entering HM-3410 tutorial though
I unsuccessfully completed HM-3400 tutorial.Till now I am unable to understand how to establish node to node connectivity between the mating parts.
For my problem is there any simpler solution available ?
Can you suggest a methodology or a procedure similar to one that is available in ' You tube - Hypermesh optistruct 2D mid-surface meshing '
Thanking you with regards,
V.V.Kuppuswamy
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Dear Sir,
Also I found that the tutorials mentioned by you are not relevant to the problem for which I am seeking guidance from you.
Under these circumstances can you help me Please ?
Thanking you with regards,
V.V.Kuppuswamy
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Dear Sir,
How to create mid surface of all constituent parts of an assembly. Every part shall have separate mid surface part. I am retrieving an individual part and creating mid surface.But my trouble is the mid surfaces are getting stored in a single mid surface layer. How to overcome it .Apart from this a comment ' pre-existing plates were detected do you want to review the plates ' is being received. What shall I do ?
Can you help me ?
Thanks and Regards,
V.V.Kuppuswamy
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Hi.
Go to Extract options in MidSurface panel and change to Results in Middle surface component to get midsurface in parent component.
If there are any extracted plates you can review them and retain them if you want or create new.
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Dear Sir,
I have created mid-surface assembly, meshed with 2D shell elements,made connectivity check, material and thickness properties defined for all components and properties assigned to various components and run 2D modal analysis.I am getting following message.
' Error 1000 in the input data.Incorrect data in field 3.Too many error messages aborting run '
What shall I do ? How do I proceed ?
Thanking you and Regards,
V.V.Kuppuswamy
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Dear Sir,
Please find attached entire out file for your consideration.
Thanking you with Regards,
V.V.kuppuswamy
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Looks like you did not apply property or used an incompatible property. Please check and update the same,
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Dear Sir,
I thank you very much for your response.As per your suggestion I properly assigned the properties re-ran the programme.
After running hyper mesh model for modal analysis the following error message I have received.Will you suggest what to do further ?I am attaching
out file for your study.
' Error:2023. Adams MNF files creation requires DTI,Units '
Thanking you with Regards,
V.V.Kuppuswamy
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Add DTI units. Go to control cards>>UNITS and specify the unit system. Maintain unit consistency to avoid surprises when you see the results
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Dear Sir,
Thanks for your prompt response.As suggested by you I added DTI units but still showing the error.Please refer attached
file.Can you suggest course of action please ?
Thanking you with Regards,
V.V.Kuppuswamy
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Looks like load case which you created has no load/force. Can you check and re-run the analysis?
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Thanks for your response and I will check the load case and come back to you.Meanwhile can how one can access Hypermesh version 14.0 files
through Hypermesh 13.0 Platform.
Thanking you with Regards,
V.V.Kuppuswamy
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If it is .hm file from 14.0, backward compatibility is not possible.
Save the .hm file as a solver file and this way you can import the file 13.0 but this methods writes out FE entities only.
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Dear Sir,
I ran a model for Modal analysis and the error message came as per the attached output file.Can you suggest the course of action please ?
Thanking you with Regards,
V.V.Kuppuswamy
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Hi,
It is not allowed to constrain a dependent Dof node of RBE2
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