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The following error message appears while importing dxf geometry into TAS:

unable to initiate toolkit

How can this error be avoided?


After the user opens the TAS GUI, click Settings>General to get the General Settings window. Modify the setting for Default TE Coefficient Filename to be "C:TASadinit.dat".

How to import Mentor Expedition or Veribest ECAD files into TASPCB and ICEBOARD

Mentor Expedition was formerly called Veribest.
Therefore this will require an "ahti_veribest_vb_ascii" feature license key.

1. In TASPCB / ICEBOARD, File > Import > ECAD > Single

2. Select VeriBest VB ASCII (this should be the only item in the list)

3. Multi-select the seven .hkp files using <CTRL-Select> or <SHFT-Select>, then Open.


How to import Mentor Expedition or Veribest ECAD files into TASPCB and ICEBOARD<br><br>Mentor Expedition was formerly called Veribest.<br>Therefore this will require an...

I believe my MATRIX27 model is giving incorrect velocity and acceleration results.
How do I verify that they are correct?


If the model is too complicated for a theoretical solution, then you need to build<br> a simple model using non-matrix elements and compare the results to a simple<br> MATRIX27...

CFX 11.0 Pre takes a long time to start up, i.e. 20 minutes. CFX Solve and CFX Post work normally


CFX 11.0 Pre performs license checks during startup. If license check takes long, then application takes this time to start up.<br><br>Possible sources for this error are:<br>-...

I would like to insert a temperature probe at different thicknesses of my part.
I created some points with my CAD but when I import the file into ANSYS, the
points are not visible and accessible. Do you know how I could place probes
at very specific and precise positions in the thickness of a part?


One of the options for the probe tool is to use a coordinate system. For each<br>desired probe point, create a coordinate system whose origin is at the desired<br>probe location. ...

Q. Customer reports that his graphical solution tracking (GST) tool is freezing up. This was reported in the past. We document a fix for it to turn off ghosting in Section 9.5 of the installation guide. However, this procedure no longer works at 10.0 or 11.0.

A. The fix at 10.0 (not documented) is to just type in the following:
sdbinst "%ANSYS100_DIR%binintelansys100.sdb"

At 11.0, ansys110.sdb file was not included in the installation.
The fix at 11.0 is to copy the attached "ansys110.sdb" file to ...Ansys Incv110ANSYSbinintel.
Then type:
sdbinst "%ANSYS110_DIR%binintelansys110.sdb"

This will be corrected for 11.0SP1.


Q. Customer reports that his graphical solution tracking (GST) tool is freezing up. This was reported in the past. We document a fix for it to turn off ghosting in Section 9.5 of the...

When trying to import geometry from Mentor Boardstation, the error message below appears. How can this error message be avoided?

Could not open C:IceboardCrossRef.ref


The default installation path for ICEBOARD 11.0 is C:Iceboard, however the user can modify this settings to install ICEBOARD in another directory. The first time geometry is imported into...

Question: How to use AUTODYN user subroutines in version 11.0 release

Solution:

In version 11.0 release, AUTODYN user subroutines are installed in user's document directory. For example, if user name in Windows is "usr_name", AUTODYN user subroutines are installed in the directory "C:Documents and Settingsusr_nameMy DocumentsAUTODYN user_subroutines".

The use of AUTODYN v11.0 user subroutines is similar to its previous versions. The detailed descriptions on using AUTODYN v11.0 user subroutines can be downloaded from ANSYS Customer Portal (http://www1.ansys.com/customer) under Product Information -> Product Documentation -> ANSYS AUTODYN, and then select User Subroutine Tutorial Version 11.0.

To compile AUTODYN v11.0 user subroutines, you need to have:

Windows
FORTRAN compiler: Intel Visual Fortran Standard v9.0 or above.
C++ compiler : Microsoft Visual C++.net 2003 only.

Linux
Intel Fortran 8.0.


AUTODYN user subroutines can be used to import user-created material models, customize AUTODYN meshes, or edit AUTODYN variables at the specified cycles or times.

For example, if you want to import a user-created yield model to AUTODYN for a specified material:

First, in AUTODYN model set the strength model of the material to "USER Strength #1".Then go to the directory "C:Documents and Settingsusr_nameMy DocumentsAUTODYN user_subroutinesfsrcmaterial", open the file "mdstr_user_1.f90", and edit the user subroutine. For the convenience of editing and debugging, Visual C++ and Fortran Development projects "ad_usrsub.sln" and "ad_usrsub.vfproj" are created and stored in the directory.

Finally, you need to build the AUTODYN user executable "ad_usersub.exe" from the Visual C++ development studio. If parallel processing is used to run AUTODYN user subroutines, you also need to build AUTODYN user slave executable "ad_usrsub_slave.exe" through the projects "ad_usrsub_slave.sln" and "ad_usrsub_slave.vfproj".


Question: How to use AUTODYN user subroutines in version 11.0 release<br><br>Solution:<br><br>In version 11.0 release, AUTODYN user subroutines are installed in...

Question: How to deal with error message "Pcj does not agree with Pg(Vcj)"

Solution:

This is the error message associated with Lee-Tarver Equation of State (EOS). The Lee-Tarver EOS considers both phases of reacted and unreacted of an explosive material. The unreacted explosive can be defined using either (1) the Shock EOS or (2) the JWL EOS.

If the JWL EOS is used to define the unreacted explosive, AUTODYN will compare the Chapman-Jouget pressure you specified in input with that calculated using the unreacted JWL EOS. And if the difference is greater than or equal to 1% of Chapman-Jouget pressure specified, AUTODYN will prompt or alert you with the following message:

'Pcj does not agree with Pg(Vcj)"

The difference can be corrected by having appropriate input values.


Question: How to deal with error message "Pcj does not agree with Pg(Vcj)"<br><br>Solution:<br><br>This is the error message associated with Lee-Tarver...

QUESTION:

I am attempting to simulate the operation of an electric motor by rotating (repositioning) the rotor in successive transient restarts. The nodal spacing in the circumferential direction along an intentionally modeled "sliding interface" is the airgap between the rotor and stator is uniform (1 degree). For each restart I reposition the rotor so that sliding interface nodes are coincident, use CPINTF to couple AZ, and increment time by an amount corresponding to the desired rotor angular velocity. I find the following:

1) Use nonlinear BH data, steady state: flux lines contiguous as intended - OK
2) Use linear permeability, transient simulation with incrementally positioned rotor: fluxlines contiguous as intended - OK
3) Use nonlinear BH data, transient simulation with incrementally positioned rotor: fluxlines are NOT contiguous - ERROR!

When I switch to CEINTF (use constraint equations in the sliding interface rather than couple degree of freedom sets), then case 3 above shows contiguous fluxlines on the sliding interface, so I have a workaround. However, I am still curious to know why CPINTF does not work in the moving rotor transient when nonlinear materials are present.


ANSWER:
This from development:

I studied this model and I can see that the coupling equations are created OK and are consistent from the start to finish of each solve command. What happens is that in the second load step the coupled DOF do not have the same AZ solution values. The incremental AZ solution values are coupled but not the total solution values. It turns out that this is expected since in a nonlinear problem coupling cannot properly keep the total AZ solution values together for each coupled set of nodes. Constraint equations can do so with the extra constant term involved with CEs.

In a nonlinear analysis, newly introduced CPs (and therefore CPINTF) simply couple the upcoming *incremental* AZ (what we are solving for in a nonlinear analysis using the Ne


QUESTION:<br><br>I am attempting to simulate the operation of an electric motor by rotating (repositioning) the rotor in successive transient restarts. The nodal spacing in the...

Even though the setup of the remote shell service and parallel setup was done in the same way on each computer, only certain computers will act as masters, and those in turn can use only certain other machines as hosts. The error is given below. One machine can act as a master for other slave nodes, but will not allow ldva6 to be a slave.

At the time, it was not urgent to solve this problem, but currently the case I need to run requires this machine.


+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| Unable to add host freddy (FREDDY) to the PVM environment: |
| |
| 80000 |
+--------------------------------------------------------------------+


If the rsh service is shown to be working properly, adding "pvmd3" and "rshd" as Firewall exceptions on the affected machines can help to resolve this problem.

Q. How does one implement the Herschel-Bulkley dynamic viscosity model in CFX 11.0?


A. The RULES file for CFX 11.0 allows the use of these models, but CFX-PRE does not recognize them. So the input must be included in a CCL file and the case run from the Command line in the Solver manager.

One exports the original CCL file from a DEF file and replaces the DYNAMIC VISCOSITY section with something like this:

DYNAMIC VISCOSITY:
Option = Herschel Bulkley
Power Law Index = 1.0
Minimum Shear Strain Rate = 1.E-7 [s^-1]
Maximum Shear Strain Rate = 1.E-3 [s^-1]
Viscosity Consistency = 0.4 [kg m^-1 s^-1]
Yield Stress = 1.0 [Pa]
END

If the existing DEF file had viscosity defined, it must be removed, as reading in the above CCL will not get rid of it. An error message will occur.

In CFX-PRE go to the material of interest and replace the value of viscosity with a blank value and then uncheck thebox for viscosity.

Then in the SOLVER manager, execute on the command line, using your own file names,

cfx5solve -def mydefile.def -ccl mynewcclfile.ccl


Q. How does one implement the Herschel-Bulkley dynamic viscosity model in CFX 11.0?<br><br><br>A. The RULES file for CFX 11.0 allows the use of these models, but CFX-PRE does...

Is it possible with ANSYS License Manager to log the usage of each licenses, and collect this data for example for a given time period?
As far as we have experienced the license manager logs license queries (time, license feature, user, etc) but the log file is cleared each time the license server is restarted.


You can run the lmgrd command with the "+" option to append to an existing log file instead of overwriting it.<br>Something like:<br><br>lmgrd -c license_file_list...

Q. After temperature dependent properties in my model, I get the following error message. What does it mean?

Fatal bounds error detected
---------------------------
Variable: AirVarProps.Specific Heat Capacity at Constant Pressure
Locale : Domain 1


+--------------------------------------------------------------------+
| Writing crash recovery file |
+--------------------------------------------------------------------+

Fatal bounds error detected
---------------------------
Variable: AirVarProps.Specific Heat Capacity at Constant Pressure
Locale : Domain 1

+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| The CFX-5 solver exited with return code 1. No results file has |
| been created. |
+--------------------------------------------------------------------+

End of solution stage.

Q. Although the error message is referring to a "bounds error", it is really telling you that it has calculated an impossible value for that property. Most likely, this means that the value is negative, a fatal error for properties such as density, viscosity, thermal conductivity, and specific heat capacity.

If you have written an expression, go to the expression editor and plot it to be sure no values are negative over the expected temperature range.

Also, keep in mind that CFX generates a table from the input expression, and that the default range of the table is 100K to 3000K for temperature. Plot the expression for this range and if any values become unreasonable, either change the expression or change the range to be in line with expected results. Often times the range of temperatures expected in the problem will be far less than the default table rang


Q. After temperature dependent properties in my model, I get the following error message. What does it mean?<br><br> Fatal bounds error detected<br> ...

If I run SMP (Shared Memory Parallel) ANSYS 10.0 or 11.0 on my Windows XP x64
dual chip quad core PC with all 8 processors, the sparse solver gives the wrong
answers. If I run 1, 2, 3, ..., or 7 CPUs with the sparse solver or use all 8 CPUs
with the frontal solver, everything is OK. Is this a known error?


Yes, Defect 56061 and has been fixed in the daily build of ANSYS 12.0. It will<br> also be fixed in the first service pack for 11.0. No date has been established<br> for the...

Why running a parallel job on a multicore (dual or quad) machines does not perform as well as running the same job on an equivalent number single core machines?


<br><br>The failure to achieve linear scaling on multicore CPUS machines is related to the machine configuration and not the OS.<br><br>The degree of speedup depends on...

Is ICEM CFD supported under SUN Solaris 10?


We have found that both ICEM CFD versions 10.0 and 11.0 work on Solaris 10 although not officially tested.<br>It would be safe to for the customer to upgrade the Operating...

Class 3 Error

SYMPTOM:
Incorrect answers, which may not look obviously wrong, are obtained when the frame rotation speed omega is set as an expression, for example changing with time.

PROBLEM:
This is caused by the software not correctly using the changing value of omega, and retaining the initial value in some c


WORKAROUND:<br>There is no workaround.<br><br>FIXED IN:<br>ANSYS CFX Release 11.0 Update 1.

SYMPTOM:
When the SST turbulence model, or its variant with the transition modification, is used for cases with heat transfer, and the Reynolds number of the flow becomes so small that the flow is really laminar, then the discretisation of the energy equation at walls can lead to slightly incorrect temperature fields.

PROBLEM:
This is caused by the wall function in the heat equation not operating optimally in the laminar limit. Of course, the models are not said to work in this limit.


WORKAROUND:<br>Calculate the flow with the Turbulence Model set to 'Laminar'.<br><br>FIXED IN:<br>ANSYS CFX Release 12.0.1. The fix is a change to the...



I notice that my CFX 10.0 Cameras are ignored in CFX-Post 11.0. Why?


<br><br>The syntax for Cameras in CFX 11.0 has changed. This was done to facilitate report generation in CFX-Post. The new cameras are now sub-objects of VIEWS.<br>Each of...

I have a VERY thin circular membrane with an out-of-plane force applied
at the center. The edges of the membrane are clamped. I am using the
SHELL181 membrane-only option, but the model will not converge. Why?


Please see the attached ANSYS 11.0 input file for the required procedure.<br> Essentially, the membrane needs to be stiffened enough to be able to<br> support the force. ...

What operating systems is CADNEXUS/CAPRI CAE Gateway for CATIA V5 supported on?


CADNEXUS/CAPRI CAE Gateway for CATIA V5 works in the following configurations:<br> 32bit Catia V5 R16 & R17 with 32bit Workbench V11 on Windows 32bit<br> 32bit Catia V5 R16...

Installed ANSYS 11.0 Products on a Windows PC (x64, however this should not matter), and the ANSYS 11.0 menu does not show in Pro/Engineer Wildfire 2.

In this situation, the customer was starting Pro/Engineer from Intralink and it was reading a specific LOCAL config.pro under a separate directory.
This file did contain the correct link for the 11.0 Geometry Interface for Pro/E.
What could be the cause of the menu not showing?


Pro Intralink did not link the PROTKDAT statement in the ANSYS line:<br>PROTKDAT C:Program FilesANSYS Incv110AISOLCAD IntegrationProEProEPagesconfigWBPlugInPE.dat<br><br>After...

I have a question about the Extended Drucker Prager material model, mostly the pressure sensitive factor (the yield stress is self-explanatory).
What exactly does this value mean? I can't seem to find any online material properties that include this value, so I'm wondering how a customer would obtain something that would represent their actual material.


The extension of the Drucker-Prager material model is associated with the yield surface and not with the pressure stress. If you compare equations 4-98 and 4-101 of the Release 11.0 ANSYS Theory...

How can I check my components to see if they include multiple element types?


The input below creates a string array of the component names and a data array<br>with 5 columns. If the cm type is nodes then column 2 contains the number of nodes,<br>and if the cm...