Calculate total DOF for a model...

PJ
Patterson, James
Thu, Dec 1, 2022 6:21 PM

Good Afternoon,

Haven't tried this for a while, but recall it wasn't as easy as it sounds (maybe?).  How do you do this in Classic ANSYS?

Thanks,

Jim

[cid:image001.png@01D90587.DC630120]
James J. Patterson, PhD.
Principal Vehicle Systems Engineer
Trailer Commercial Vehicle Systems
2070 Industrial Place S.E.  Canton, OH 44707
ph. 330 489 0095  |  fax 330 489 1961
jpatterson@hendrickson-intl.commailto:jpatterson@hendrickson-intl.com
www.hendrickson-intl.com

The contents of this message may be privileged and confidential. Therefore, if this message has been received in error, please delete it without reading it. Your receipt of this message is not intended to waive any applicable privilege. Please do not disseminate this message without the permission of the author.

Good Afternoon, Haven't tried this for a while, but recall it wasn't as easy as it sounds (maybe?). How do you do this in Classic ANSYS? Thanks, Jim [cid:image001.png@01D90587.DC630120] James J. Patterson, PhD. Principal Vehicle Systems Engineer Trailer Commercial Vehicle Systems 2070 Industrial Place S.E. Canton, OH 44707 ph. 330 489 0095 | fax 330 489 1961 jpatterson@hendrickson-intl.com<mailto:jpatterson@hendrickson-intl.com> www.hendrickson-intl.com The contents of this message may be privileged and confidential. Therefore, if this message has been received in error, please delete it without reading it. Your receipt of this message is not intended to waive any applicable privilege. Please do not disseminate this message without the permission of the author.
MG
Mohammad Gharaibeh
Thu, Dec 1, 2022 7:52 PM

Hi James,

You might want to check the output file for the number of equations once
you start the solution process. See the link below:

https://forum.ansys.com/forums/topic/how-to-identify-the-number-of-degrees-of-freedom-dof-in-ansys-structural/

Best,
M Gharaibeh

On Thursday, December 1, 2022, Patterson, James <
jpatterson@hendrickson-intl.com> wrote:

Good Afternoon,

Haven't tried this for a while, but recall it wasn't as easy as it sounds
(maybe?).  How do you do this in Classic ANSYS?

Thanks,

Jim

[cid:image001.png@01D90587.DC630120]
James J. Patterson, PhD.
Principal Vehicle Systems Engineer
Trailer Commercial Vehicle Systems
2070 Industrial Place S.E.  Canton, OH 44707
ph. 330 489 0095  |  fax 330 489 1961
jpatterson@hendrickson-intl.commailto:jpatterson@hendrickson-intl.com
www.hendrickson-intl.com

The contents of this message may be privileged and confidential.
Therefore, if this message has been received in error, please delete it
without reading it. Your receipt of this message is not intended to waive
any applicable privilege. Please do not disseminate this message without
the permission of the author.

--

---====
Mohammad A Gharaibeh, Ph.D.
Associate Professor
Department of Mechanical Engineering
The Hashemite University
P.O. Box 330127
Zarqa, 13133, Jordan
Tel: +962 - 5 - 390 3333 Ext. 4771
Fax: +962 - 5 - 382 6348

---====

Hi James, You might want to check the output file for the number of equations once you start the solution process. See the link below: https://forum.ansys.com/forums/topic/how-to-identify-the-number-of-degrees-of-freedom-dof-in-ansys-structural/ Best, M Gharaibeh On Thursday, December 1, 2022, Patterson, James < jpatterson@hendrickson-intl.com> wrote: > Good Afternoon, > > Haven't tried this for a while, but recall it wasn't as easy as it sounds > (maybe?). How do you do this in Classic ANSYS? > > Thanks, > > Jim > > > > [cid:image001.png@01D90587.DC630120] > James J. Patterson, PhD. > Principal Vehicle Systems Engineer > Trailer Commercial Vehicle Systems > 2070 Industrial Place S.E. Canton, OH 44707 > ph. 330 489 0095 | fax 330 489 1961 > jpatterson@hendrickson-intl.com<mailto:jpatterson@hendrickson-intl.com> > www.hendrickson-intl.com > > > The contents of this message may be privileged and confidential. > Therefore, if this message has been received in error, please delete it > without reading it. Your receipt of this message is not intended to waive > any applicable privilege. Please do not disseminate this message without > the permission of the author. > -- ===================================== Mohammad A Gharaibeh, Ph.D. Associate Professor Department of Mechanical Engineering The Hashemite University P.O. Box 330127 Zarqa, 13133, Jordan Tel: +962 - 5 - 390 3333 Ext. 4771 Fax: +962 - 5 - 382 6348 =====================================
GK
Gallagher, Keith (GE Aerospace, US)
Thu, Dec 1, 2022 7:58 PM

Example:
Number of nodes associated with shells* 6 DOF
Number of nodes associated with solid elements *3
Sum the two

If you have beams/ links the number of DOF's vary, but the same approach applies.

I believe constraint equations and other ties can reduce this value (as they are no longer independent solutions) but that's usually minimal.

Keith Gallagher
GE Aerosapce

-----Original Message-----
From: Patterson, James jpatterson@hendrickson-intl.com
Sent: Thursday, December 1, 2022 1:22 PM
To: xansys-temp@list.xansys.org
Subject: EXT: [Xansys] Calculate total DOF for a model...

WARNING: This email originated from outside of GE. Please validate the sender's email address before clicking on links or attachments as they may not be safe.

Good Afternoon,

Haven't tried this for a while, but recall it wasn't as easy as it sounds (maybe?).  How do you do this in Classic ANSYS?

Thanks,

Jim

[cid:image001.png@01D90587.DC630120]
James J. Patterson, PhD.
Principal Vehicle Systems Engineer
Trailer Commercial Vehicle Systems
2070 Industrial Place S.E.  Canton, OH 44707
ph. 330 489 0095  |  fax 330 489 1961
jpatterson@hendrickson-intl.commailto:jpatterson@hendrickson-intl.com
www.hendrickson-intl.com

The contents of this message may be privileged and confidential. Therefore, if this message has been received in error, please delete it without reading it. Your receipt of this message is not intended to waive any applicable privilege. Please do not disseminate this message without the permission of the author.

Example: Number of nodes associated with shells* 6 DOF Number of nodes associated with solid elements *3 Sum the two If you have beams/ links the number of DOF's vary, but the same approach applies. I believe constraint equations and other ties can reduce this value (as they are no longer independent solutions) but that's usually minimal. Keith Gallagher GE Aerosapce -----Original Message----- From: Patterson, James <jpatterson@hendrickson-intl.com> Sent: Thursday, December 1, 2022 1:22 PM To: xansys-temp@list.xansys.org Subject: EXT: [Xansys] Calculate total DOF for a model... WARNING: This email originated from outside of GE. Please validate the sender's email address before clicking on links or attachments as they may not be safe. Good Afternoon, Haven't tried this for a while, but recall it wasn't as easy as it sounds (maybe?). How do you do this in Classic ANSYS? Thanks, Jim [cid:image001.png@01D90587.DC630120] James J. Patterson, PhD. Principal Vehicle Systems Engineer Trailer Commercial Vehicle Systems 2070 Industrial Place S.E. Canton, OH 44707 ph. 330 489 0095 | fax 330 489 1961 jpatterson@hendrickson-intl.com<mailto:jpatterson@hendrickson-intl.com> www.hendrickson-intl.com The contents of this message may be privileged and confidential. Therefore, if this message has been received in error, please delete it without reading it. Your receipt of this message is not intended to waive any applicable privilege. Please do not disseminate this message without the permission of the author.