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ADINA 8.9.4 has been released.

These Useful Hints and Issues, while reported for the specific version 8.9.4, are usually also applicable to the ADINA versions 8.9.3, 8.9.2, 8.9.1 and 8.9.0.

Useful Hints and Issues
Regarding the Use of the ADINA System, v. 8.9.4

Issue No. 29, posted December 12, 2013

In linear dynamic analysis of a model containing 2D or 3D porous elements, when Rayleigh damping is specified, the stiffness contribution to the damping matrix is not included for the porous elements in ADINA.

As a workaround, make the analysis nonlinear, e.g., by setting a very large death time in one element group.

This deficiency is removed in v. 9.0.0.

Issue No. 28, posted December 12, 2013

Boundary layers generated using the BLAYER command (AUI menu: Meshing > Create Mesh > Boundary Layer...) may be incorrect for bodies which are face-linked or have been scaled automatically to fit the Parasolid model size constraints (-500 to 500).

Actually, to generate boundary layers, we recommend defining a boundary layer table with the BLTABLE command and specifying it in the GBODY command (AUI menu: Meshing > Create Mesh > Bodies..., in the Advanced tab).

This bug is fixed in v. 9.0.0.

Useful Hints and Issues
Regarding the Use of the ADINA System, v. 8.9.3

Issue No. 27, posted October 22, 2013

For frequency analysis of a model containing 3D-bolt elements, if modal stresses are requested (not default), the porthole file cannot be loaded into the AUI. The error message is

ADINA porthole file mismatch, expected record 'MODSTRES', found record 'BOLTRES1'

There is no workaround. This bug is fixed in v. 8.9.4.

Issue No. 26, posted September 30, 2013

When concentrated heat flows are applied in a Joule heat analysis, the ADINA Thermal program stops during the input phase. There are no results generated.

There is no workaround. This bug is fixed in v. 8.9.4.

Issue No. 25, posted September 18, 2013

If nonlinear springs are used in a model with contact conditions, then the ADINA program might crash.

As a workaround, use linear springs instead of nonlinear springs if possible. This bug is fixed in v. 8.9.4.


Useful Hints and Issues
Regarding the Use of the ADINA System, v. 8.9.2

Issue No. 24, posted July 22, 2013

Contact force/traction results cannot be displayed in NX postprocessing. This is due to a wrong header in the Op2 data block.

There is no workaround. This bug is fixed in v. 8.9.3.

Issue No. 23, posted July 22, 2013

This bug affects the Windows versions of the AUI, when OpenGL graphics is used. The bug is triggered when using Windows Vista or Windows 7. Note that Windows XP and Windows 8 do not trigger the bug.

When a dialog box that covers the graphics window is dismissed, so that an area of the graphics window is exposed, sometimes graphics can be drawn only in that exposed area.

One possible workaround is to switch to or from a Windows theme that uses Aero mode (right-click on the Desktop, choose Personalize and select a theme). Another possible workaround is to switch graphics cards. However these workarounds are system-dependent and will not always work.

A sure workaround is to use the Windows GDI graphics system within the AUI. However the GDI graphics are much slower than OpenGL graphics, particularly for large 3D models.

This bug is fixed in v. 8.9.3.

Issue No. 22, posted June 27, 2013

There is a bug in the SCL line definition feature of the AUI, that results in an incorrect definition of the line, under the following conditions:

  1. more than one element group is in the model, and
  2. the SCL line passes through two adjacent elements, in which the element numbers are the same, but the group numbers are different.

A consequence of the bug is that a sampling point on the SCL line that actually is in the model is marked as "not in the model".

As a workaround, renumber the elements so that element numbers are not duplicated. This bug is fixed in v. 8.9.3.

Issue No. 21, posted June 27, 2013

If model-based deformation-dependent centrifugal load is used with modal participation factor calculations in a restart run, then the program crashes.

As a workaround, if a group-dependent load is specified for all element groups, use group-dependent centrifugal loads, which are equivalent to model-based centrifugal loads. This bug is fixed in v. 8.9.3.


Useful Hints and Issues
Regarding the Use of the ADINA System, v. 8.9.1

Issue No. 20, posted May 31, 2013

The plot of bending moments using the ELINEPLOT feature of the AUI (Display > Element Line > Create) is slightly in error when the beam elements have rigid ends.

The bending moments presented on the flexible part of the element are correct, only the interpolation of bending moments onto the rigid ends is in error.

There is no workaround. This bug is fixed in v. 8.9.3.

Issue No. 19, posted May 31, 2013

When the AUI imports a Nastran model which has a cylindrical or spherical displacement coordinate system followed by a Cartesian displacement coordinate system that is aligned with the basic coordinate system, the Cartesian displacement coordinate system assigned to the nodes may be wrong (because of sequencing coordinate systems in the AUI and the Cartesian displacement coordinate system is treated as trivial).

The workaround is to not use any displacement coordinate system that is aligned with the basic coordinate system.

This bug is fixed in v. 8.9.3.

Issue No. 18, posted May 22, 2013

When a 6DOF spring element with a single node (i.e., a grounded 6DOF spring) including damping is used, the program may crash.

As a workaround, replace the single-node 6DOF spring element with a two-node 6DOF spring element. This bug is fixed in v. 8.9.2.

Issue No. 17, posted May 22, 2013

For particularly ill-posed models, the determinant search method may crash or hang.

As a workaround, use the subspace iteration or Lanczos method. This bug is fixed in v. 8.9.2.

Issue No. 16, posted May 22, 2013

When a model has contact birth or death (or glueing with birth and death options) and the 3D-iterative solver is used, then the program encounters an NaN error (divisions by zero). The solver does not converge and prints out NaN in the output.

As a workaround, use the sparse solver. This bug is fixed in v. 8.9.2.

Issue No. 15, posted May 22, 2013

There is a bug in the SCL line definition feature of the AUI, that results in an incorrect definition of the line, under the following conditions:

  1. SCL line trimming is used (SCLLINE ... TRIM=YES), and
  2. more than one element group is in the model, and,
  3. more than one element group is in the zone used by the SCLLINE command
A consequence of the bug is that a sampling point on the SCL line that should be in the model is marked as "not in the model".

This bug was introduced in version 8.9.1 and is not present in previous versions of the AUI.

As a workaround, do not use SCL line trimming. This bug is fixed in v. 8.9.2.

Issue No. 14, posted May 1, 2013

The results are wrong when all of the following options are used together: linear element group, Hermitian beam elements, end releases, rigid-end offsets.

To workaround this bug: for each linear Hermitian beam element group in which end releases are used together with rigid-end offsets, change the group to a nonlinear group, for example, by setting the element death time to a very large value.

This bug is fixed in v. 8.9.2.


Issue No. 13, posted May 1, 2013

In the 64-bit version of ADINA-M/PS, an edge cannot be blended with two radii, one at each end of the edge.

There is no workaround. This bug is fixed in v. 8.9.2.


Issue No. 12, posted May 1, 2013

The Nastran entry FORCE1 may be used to specify a follower force which acts from nodes G1 to G2. However, the AUI translates the direction wrongly from G2 to G1.

As a workaround, negate the magnitude of the force F, or switch G1 and G2 in the Nastran FORCE1 entry. This bug is fixed in v. 8.9.2.


Issue No. 11, posted May 1, 2013

When a body is meshed with a mixed mesh and an attempt is made to create a boundary layer with the command BLAYER anywhere on that body, an internal error message is generated and the program stops. This is because boundary layers can only be generated on tetrahedral meshes using this command.

As a workaround, define and use a Boundary Layer Table while meshing the body with the command GBODY. This bug is fixed in v. 8.9.2.


Issue No. 10, posted May 1, 2013

When using Display > Result Line Plot > Create to plot an SCL line in the 32-bit Windows version of the AUI, the program may hang or give a "memory overflow" message.

As a workaround, use the 64-bit Windows version of the AUI. This bug is fixed in v. 8.9.2.


Issue No. 9, posted April 11, 2013

When plotting the cross-sections of Hermitian beam elements, the plot is incorrect in preprocessing only when the beam cross-section orientation is specified using a vector and also the vector is referenced to a skew system.

As a workaround, plot the cross-sections during postprocessing. This bug is fixed in v. 8.9.2.


Issue No. 8, posted April 11, 2013

In a cyclic symmetry analysis, if a model has an odd number of cyclic parts and frequencies are calculated for harmonics in an interval starting with a harmonic other than the zeroth, then the first calculated frequency and mode shape are not correct.

There is no workaround. This bug is fixed in v. 8.9.2.


Useful Hints and Issues
Regarding the Use of the ADINA System, v. 8.9.0

Issue No. 7, posted March 20, 2013

In the following special case:

  1. Alignment elements attached to 2D solid or 3D solid elements, and
  2. Spring elements attached to the same nodes as the alignment elements, and
  3. Moments applied to the same nodes as the alignment elements and spring elements

the AUI deletes the rotational degrees of freedom of these nodes. The consequence is that the moments are not applied to the model.

As a workaround, do not attach spring elements to nodes with both alignment elements and solid elements (either 2D solid or 3D solid). This bug is fixed in v. 8.9.1.


Issue No. 6, posted March 1, 2013

When an ADINA-M geometry face is meshed with shell elements with the option FLIP=YES (the default is FLIP=NO), the shell director vectors are not correct. Hence, the analysis results will be wrong. Note that the FLIP option can only be set in command mode as it is not available in the dialog box.

As a workaround, the following command can be added before the mesh command

MASTER VECTOR-SHELL=ELEMENT

This bug is fixed in v. 8.9.1.


Issue No. 5, posted February 12, 2013

In ADINA-M/OC, when an invalid Open Cascade Brep model is imported, the program crashes.

There is no workaround. This bug is fixed in v. 8.9.1.


Issue No. 4, posted January 30, 2013

In op2 files created by ADINA 8.8.3 and later, including ADINA 8.9.0, there is no contact force output for 2D contact.

There is no workaround. This bug is fixed in v. 8.9.1.


Issue No. 3, posted January 17, 2013

When loading a porthole file containing cohesive elements, the AUI might give the following error message:

ADINA porthole file mismatch, expected record 'REACFORC', found record 'OUTPUT15'. The loading of the porthole is stopped.

As a possible workaround, change the porthole format type from binary to text, or from text to binary. This bug is fixed in v. 8.9.1.


Issue No. 2, posted January 2, 2013

The stress-strain plots from MATERIALSHOW STRAIN show incorrect legends when plotting a temperature-dependent Sussman-Bathe material model.

There is no workaround. This bug is fixed in v. 8.9.1.


Issue No. 1, posted January 2, 2013

ADINA-PLOT data can sometimes get corrupted when loading portholes from multiple adaptive CFD mesh portholes. This corruption happens when a restart adaptive CFD mesh porthole has only initial conditions data.

Consequences of the corruption are that the next step and previous step icons don't work as expected. Pressure bands and other results can also be corrupted.

As a workaround, don't load a restart adaptive CFD mesh porthole file that contains only initial conditions. This bug is fixed in v. 8.9.1.



For Useful Hints and Issues regarding the use of earlier versions of the ADINA System, see here

Version 8.8       Version 8.7       Version 8.6       Version 8.5       Version 8.4