Structural Dynamics Toolbox
What's new in SDT 6.2
November 2009
Key features of the SDT 6.2 release are
- a major revision of the iiplot interface was introduced to improve
label handling, support the direct display of time simulation results,
integration of signal processing capabilities of ii_mmif, 2D displays associated with
time/frequency plots, ...
- fecom, and iicom usability is improved
with new icons, revised menus, iiplot/ feplot interaction, interactive mesh editing,
default model properties, ...
- improved the readability of the documentation through
keyword highlighting in both the HTML and PDF, see section 1.4.
- introduction of a generic file for test setup
definitions typically filled with Excel. This significantly simplified the
definition of sensors and triaxes normal to the supporting surface as well
as laser vibrometer measurement specification.
- full rewrite of node matching algorithms which
enhances speed for mesh generation, sensor matching, incompatible mesh
handling, ...
Key features of FEMLink 3.5 are
- ufread has been modified to improve
robustness to fields containing blanks, enhance reading speed and correct
problems with local coordinate systems.
- abaqus has been extended and optimized.
- samcef import/export capabilities have been
extended.
- ans2sdt was revised for a better support of
degenerate elements.
- nasread was extended to support variations
introduced in NASTRAN 2007. Stress reading from op2
files was improved.
OpenFEM has undergone many detail improvements and the following
revisions
- The support of general fields at nodes has been
significantly generalized with labels identifying the fields for easier
generation of families of elements with implementations depending on fields
actually present (typical fields are constitutive properties, material
orientations, thickness, temperature, pressure, ...). The first version of
a property interpolation mechanism based on tables is introduced.
- a better mechanism to return to MATLAB after the field
extraction and Jacobian computations of each element is introduced.
- composite shell support has been extended.
Compatibility
- SDT 6.2 is compatible with MATLAB 7.1 to 2009b (7.9). Currently compiled
platforms are Windows (32 & 64), Linux (32 & 64) and MacOS. For
earlier releases, see details
- SDT 6.2 is the ONLY version compatible with MATLAB > 7.8 (R2009a) on
64 bit platforms.
- Release notes can be found in the documentation http://www.sdtools.com/help/rel62.htm.
- For download/installation procedures see www.sdtools.com/faq/Release.html.
The following functions have significant modifications
iiplot
|
has undergone significant extensions for
improved dataset support (direct display of FEM responses, selection in
multi-dimension datasets, ...), mouse interactivity, improved menus and
icons. Many detailed robustness enhancements. |
| idcom |
now support cursor interaction in the
identification error plot. |
| fe_sens |
introduced cell array description of
complex test setups (see section 4.3.2), improved sensor matching
robustness |
| ii_mmif |
signal processing capabilities have been
significantly extented. Processing of FEM time deformations can now be
done directly. |
| fe2ss |
now supports parametric models |
| fesuper |
many detail improvements in superlement
building and restitution |
| |
|
feplot, fecom
|
improved support for the display of stack
entries. |
| |
Display of sensor entries has been improved
through bug corrections on the cursor, compatibility with TextDof command. |
| fe_case |
improved of RBE3 support. |
| fe_cyclic |
support of periodic rather than cyclic
solutions. Major extensions of the cyclic symmetry capabilities are
under way be will be distributed as a SDT-Rotor module. |
| fe_mknl, fe_case |
Significant efforts where done to clarify
debugging information when improper models are used. |
| fe_quality |
This new function supports many estimates
of finite element mesh quality. |
| feutil |
improved face support. Corrected bugs in
r based node selection. All mesh building
commands have been ported so that femesh can be bypassed alltogether. This
seems easier to learn for new users. |
| fe_stres |
the function has been renamed fe_stress (the limitation on 8 characters
being very obsolete). Bugs in shell stress processing have been
corrected. |
| q4cs |
the SDT composite/piezo element has
undergone a major revision for improved orientation handling and stress
computations. |
|
Previous
releases