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Rapid prototyping: Quick, easy and accurate topology
& geometry model creation for with design constraints -
Implicit parameterization “NO”
additional time for parameterization -
Easy model variation -
Integrated Finite Element Generator -
Store models and components in library for
generation of knowledge database and reusability -
Shape & size optimization in closed batch loop -
On-the-fly definition of design variables and design
space -
Integration of specific applications like commercial
optimization and design tools |
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Why _._._._ ? ![]() |
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Quality –
Justify
early design decisions through simulation : Upfront CAE –
Quickly
study multiple design concepts –
Vehicle
architecture decisions made with balanced targets (Design, Packaging and CAE)
and based on consistent data Process Efficiency –
Break the
dependence on traditional CAD geometry before simulation work can begin –
Faster
design turn around –
Enable shape
and topology optimization yielding designs that can be manufactured –
Significantly
reduce product cycle time & time to market Cost Avoidance –
Eliminate
infeasible concepts & reduce the number of costly physical prototypes –
Catch and
fix design conflicts at early stage –
Reduced
numbers of late design changes and churning during launch |
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Generation and Evaluation of Design
Concepts |
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In the field of engineering design, it is vital that the mechanical behavior of the structure be assessed in order to evaluate and select a certain design from a variety of design concepts. This means that it must be possible to draft the geometrical description of the structure in a very fast and flexible manner. Using conventional CAD tools, this description requires considerable time and effort. As an example from automotive industry, the design may start up with an entirely new geometry or with an imported and converted CAD or FE geometry.
It is possible to store model parts in a library. When imported to a new design, these parts are automatically attached to the new geometry. Shape optimization with large deformations is no longer a challenge. Shape design variables as well as upper and lower bounds can be defined within
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Parametric Model Build & Modification |
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Influence Points (IP) are the only objects with Cartesian coordinate
information. If moved to a new location, all the depending objects follow
maintaining the topological and geometrical consistency ·
Base lines are used for information transfer from one object
to other objects. ·
Cross sections form the shape of beams and joints. Section
segments can be added, removed and modified parametrically ·
Beams are
created by applying cross sections to base lines. Beam curvature follows the
base line curvature. ·
Joints are
generated automatically between adjoining beams. User has full control over
the joint shape and can make desired modifications. ·
Free-form Surfaces can be created using base lines and beams and joint
edges. Surfaces adapt to any change in the master object (edges defining the
surface) |
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Object to
object Mapping feature for
topological connections (e.g. creating cut outs, lap joints, flanged
connection, etc.) ·
Introducing
a one of its kind revolutionary technique for surface map ·
Advanced
object mapping feature using smart connections ·
Real time visualization
of object modification |
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Parametric
Bead/Stamp definition & positioning, ON/OFF ·
Variation
of Bead/Stamp Depth, Length, Width ·
Beads/Stamps
with any desired Shape |
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Parametric
Ribs definition & positioning, ON/OFF ·
Variation of
Rib Shape, Height, Length ·
Ribs with
any desired Shape |
Auto Meshing |
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Proprietary auto meshing algorithms ·
Lightening fast FE mesh generation with automatic
penetration avoidance. Mesh ready for analysis. ·
No limitation on number of nodes ·
Unique and one of its kind Multiple Flange Layer (MFL) definition technique resulting in
generation of ‘no penetration’
FE models ·
Automated flange recognition for assembly with
alternative node-dependant or independent connection types |
A_CONCEPT
Geometry
FE mesh without penetrations |
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Geometry based connections and fasteners (e.g. spot
welds, adhesives, bolts, etc.). Modification in geometry results in automatic
update of connections ·
Parametric loading and boundary condition definition |
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Parametric loading and boundary condition definition ·
Attachment points for trim components can be defined
on parametric geometry. These attachments are automatically updated upon geometry
modification |
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CAD & CAE Interfaces |
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Section data or reference CAD data input in industry
standard geometry formats (IGES, VDA) ·
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Geometry can also be input/output as graphics
formats (VRML, STL) |
Modular Library, Templates & Reusability |
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Build,
Archive & Reuse Corporate Specific Knowledge Base ·
Transform
& Modify Components/Modules ·
Define
& optimize new topologies and geometries in available design space ·
Corporate specific
data bank contents like geometry data, mechanical property data, connection
types, manufacturing costs, etc. ·
Based on
the surface map technique easy encapsulation, archival and retrieval of model
parts in/from library (e.g. assembly library, joint library, etc.) ·
Models
with attributes like, properties, material and connectivity information
stored in library ·
Reusability
of proven design concepts without no significant rework ·
Use of
implicitly (easy to modify) topology/geometry templates eliminates the need
for interpretation of topology results to a manufacture-able design |
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Use
parametric model components or assemblies in current design ·
These
components know where they attach and what type of connections they have ·
Automatic shape
and size adaptation based on target model ·
Part
layers are automatically recognized and connected |
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Progressive Model Refinement |
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Robust parametric
geometry models with varying degree of details ·
Top
– down approach: Progressive model refinement based on current status
of information ·
Applying
progressive parametric holes, beads, stamps, etc. on the parametric base
geometry |
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Optimization |
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Geometry based Shape & Topology Optimization ·
GUI enabled definition of design variable &
bounds definition in 3D space ·
Model modification and monitoring technique combined
with best in class implicit parametric capabilities ·
Seamless integration with commercially available
optimization codes (e.g. NASTRAN Sol. 200, iSIGHT, OPTIMUS, OptiSLang,
LS-OPT, PERMAS, HEEDS) ·
Reducing redundancy in definition of optimization
variables & bounds ·
Optimization with analysis solvers like NASTRAN and
PERMAS also possible |
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Batch
command interface for: o o System commands o Process control |
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System supported |
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HP:
HP-UX 11.11 ·
IBM:
AIX 4.3.2 or higher ·
SUN:
Solaris 8 or higher ·
SGI:
IRIX 6.3 or higher ·
Linux:
Red Hat 7.2 or higher, Suse 8.2 or higher (Open Motif required) ·
Windows:
NT, 2000, XP, |