PreSys + VPG
Product Release
February, 2013
ETA Corporation Overview
• US-based engineering services and software
development company, Established in 1983
• Over 250 employees
– US, Canada, China, Germany and India operations
• Software Distribution Partners Worldwide
• CAE software developer for virtual product
development
– Inventium: A new software architecture which is the
platform
for ETA’s new generation of FE modeling software
products;
PreSys, VPG , DYNAFORM & future developments
Inventium Product Architecture
RELEASE TIMING
Complete
Modeling
Toolset,
Solverneutral,
Integrated
Post
Processing
Available NOW
Vertical
Application
Toolsets,
focused on
LS-DYNA
applications
Available Now
Vertical
Applications for
Die System
Design &
Analysis
New Toolsets
used in
advanced
product and
concept
development
PreSys Overview
• Finite Element Pre- and Post-Processor to Prepare Product Design
Data and Process Simulation Results
– Modern Computing Platform; Windows 7 / 8, Multiple CPUs, Multiple Cores…..
– Intuitive Interface
– High Performance Graphics Capabilities
– Streamlined Processes
– Model Explorer Feature
– Language Localization
• Japanese per request
– Support LS-DYNA and commonly used Analysis & CAD Systems
When you see this icon, it
means you can find more info
and a video demo on the
ETAINFO1 channel on
YouTube.com
PreSys Capability Summary
CAD Modeling
Point/Line/Surface
Mesh Generation
Node/Element
Connections
Input/Output/Save
File Transfer
CAD Interface
Utility Functions
Measurements
LCS / Parts
Solver Definition
Model Conversion
Model Organization
Model Check
Contact Check
Connectivity Check
Boundary Conditions
Loading Conditions
Material Property
Keywords / Definitions
PreSys Unique Features
• Fully Customizable User Interface
–
–
–
–
–
–
Toolbars
Menus
Shortcuts
Macros
Layout
Windows
• Keyword view to edit ‘card images’
– Default values displayed
• Multi-model capabilities
• Pre – Post processing shown
simultaneously
• Scripting / session file replay
capability
• 3D Viewer App
• Extreme Large Model / 64 bits
PreSys
2012 R2 Version
Capabilities/Enhancements
Shape Mesher
Create shell or solid mesh in primary shapes:
Box, Cylinder, Sphere and Torus
Connection – Solid Elements
• Support adhesive type of connections
Create solid elements to connect parts
• Supports spotwelds in solid elements
MAT100 4/8/12/16 Hexahedron elements
• Significantly improved spotweld generation speed
Beam Section Libraries & Editor (PreSys)
• Provide beam section libraries; North America, Japan, Europe &
India standards
• User can build their own libraries
• Create beam properties from libraries
Meshing / Element Generation
• Topology mesh, Control point mesh; Modify
boundary node
• Triangle mesh
• Re-mesh
• Modify boundary node; free edge option
• Add Washer, non-circular holes; drill holes
• 2-line mesh, Improved mesh pattern for closed
lines
• Drag mesh, Using solid element faces directly
Line/Surface Operation
• Create Arc
– Split original lines; combine new lines
• Split Surface
– Option to split both surfaces
• Sweep
– LCS can be used as path
• Extend Surface
• Middle Surface
Spreading – a Selection Method
• Node Spreading - Along edge
• Segment Spreading; Inside region
• Face of Solid Elements Spreading
Node / Element / Model Check
• Align node - for multiple lines
• Assign beam element orientation and offset
• Assign mass/SPH element value
– LCS can be used as path
•
•
•
•
Create SPH element from element center
Support 2nd order element in most functions
Add more checks for solid elements
Reorganize model check based on element types
CAD Interface Updates
•
•
•
•
•
•
•
•
CATIA V4 - 4.1.9-4.2.4
CATIA V5 - R6-R22 (V5-6 R2012)
NX - 11 – NX8
Parasolid - 10.0-25.0.155
Pro/E - 16 - Creo 2.0
SolidWorks - 2003 - 2013
STEP - 203, 214
Inventor - V11 - 2013
CAE Solvers Interface Updates
• LS-DYNA 971 R6.0.0
• NEi Nastran Version 10.1
• NISA Version 18
PreSys + VPG Overview
• Vertical Application Modules
• PreSys + VPG Modules are toolsets developed for
specific applications
– Provide a streamlined process in a consolidated
menu group
– Application focused modeling modules
• PreSys + VPG Modules are implemented as ‘plug-ins’
– FSI (Fluid Structure Interaction) Module
– Drop Test Module
– Safety Module
– Structure Module
FSI Module
• Allows users to more easily build LSDYNA fluid-structure interaction
models using the ALE method
• Used for blast models, airbags, fuel
sloshing, alternative energy, medical
• Easy coupling of Fluid & Structure
Models
• 64-Bit implementation to make
creating extremely large, detailed
models easily
• Tutorial & Examples available
FSI Overview
Structure Model
Fluid/ Explosive
+
Shock Tube Model
Post Processing
FSI Setting - Mesh Generation
•The proportion of model: 1, 1/2,1/4
•The shape and relative position of
explosive and zones
•The dimension of explosive
•The dimension and material of Zone 1
•The dimension and material of Zone 2
FSI Setting - Define Multiple Transition Regions
• The user can define multiple transition regions
to ensure the mesh size compatibility between
explosive source and medium.
•A preview mode is available to display the
transition regions before generating the mesh.
FSI Setting -Ratio Between Transition Regions
• In this transitional region, the element size is gradually
transitional
• The ratio value is the theoretical ratio value between the
first element size and the last element size in the region.
FSI Setting - Define the Material and the Property
• The explosive and the zones have been assigned the
common material and property.
• The user can change the material or property by clicking
the corresponding button.
FSI Setting - Define the Keyword for Simulation
• All the keywords related to FSI are
listed in this tab
• A keyword editor is displayed when
the user double clicks on “keyword”
• When saved, the defined list is shown
as defined in the Card list
Drop Test Module (DTM)
• A specialized toolset for engineers who perform various tests
using LS-DYNA
– Consumer Electronics
– Packaging Design
– Aerospace Applications
• Consists of Task Panels that
allow the user to easily set up
–
–
–
–
Drop Tests
Shock Tests
Vibration (Shaker Table) Tests
Indentation Tests
• Multiple input files for variations can be generated
DTM - Drop Test
• Drop Test Module provides many
methods to help the user adjust the
drop direction easily.
DTM - Drop Test
• Select the standard to define the
drop test condition directly.
• Set the simulation height to cut the
calculation cost.
• Calculate the termination time
according to the simulation height
automatically.
DTM - Drop Test
• The card option helps to set various desired responses
easily, such as the stress curve, acceleration curve, etc.
DTM - Drop Test
• Submit the LS-DYNA input file
directly
• Generate the batch file for different
heights or angles
DTM - Vibration and Shock Tests
• Improvements made to the Shock and Vibration sections
• Vibration Test:
• Users may select PSD or
Time Domain inputs
• Curve Selection /
Definition
•Shock Test
• Curve Selection / Definition
Safety Module Features
• FMVSS, ECE and J-NCAP Crash Test Setup
• Import Dummies from Library
• Create a Dummy
– Create a dummy that can be positioned from a 3rd party
dummy (LSTC, etc.)
• Dummy Positioning
– Drag & drop functionality
• Seat Belt Routing
– Improved accuracy of the belt routing
– Easier to use
• Seat Foam Deformed Shape
Crash Regulation Summary
•Test Procedures Supported by VPG/Safety
• FMVSS Regulation
• 201 Head Impact
•
•
•
•
•
•
•
•
•
• ECE Regulation
•
•
•
•
•
208 Frontal Impact
210 Seat Belt Anchorage
214 Side Impact
214 Side Door Impact
214 Side Pole Impact
•
216 Roof Crush
•
225 Child Restraint Anchorage•
301 Rear Impact
•
581 Bumper Impact
Janpan NCAP
Frontal Impact
Offset Front Impact
Side Impact
• Other Regulation
• Pedestrian Impact (2013) •
• Euro-NACAP
• GTR
17 Luggage Intrusion
32/34 Rear Impact
66 Bus Rollover
94 40% Offset Front Impact
95 Side Impact
•
IIHS 40% ODB
IIHS Side Impact
Crash Test Set-up
• The prompt pictures are shown when
users select the regulations or set the
parameters
• Allows the user to import and position 3rd party barriers
and dummies
• LSTC Barriers and Dummies
One Model, Multiple Cases
• The most exciting feature is “One Model, Multiple Cases”
Regulation Window
• NEW Regulation Window
• Allows users to define multiple
crash tests using a single vehicle
model
• Controls the output of these cases
• Update the vehicle model and
update several crash test
simulations at one time
Regulation Window: Model Display Control
• Control Component Display
• Such as MDB, ODB, Roof, Ram
and
• Dummy,
• Control Keyword display
Regulation Window: Edit Model
• Mouse right button menu on component allows user to
edit position of the Barrier or Dummy Models
Regulation Window: Model Export
export
fmvss214.k
export
fmvss216.k
Seat Foam Deformation Tool - Morphing
Before Deformation
Seat Deformation
Dummy Positioning
Seat Belt Modeling
• Improved Seat Belt
Positioning Tool
• Morph the seatbelt to the
dummy body surface,
creates a perfect fit on a
user defined path
• Ability to control the seatbelt
width / length
• Retractor and Slip Ring
definitions
• Easy-to-use Interface
Pedestrian Protection (New 2013)
•
•
Pre-processing
• Vehicle Marking
• Headform Test
• Legform Test
• Upper Legform Test
Post-processing
• Setup Criteria
• Visualization HIC15
Pedestrian Protection
Vehicle Marking
Pedestrian Protection
Legform Test
Pedestrian Protection
Post-processing
VPG - Structure Module (New 2013)
• Allows the user to generate the VPG Tire Models and
Road Surfaces parametrically
• Additional control over tire parameters
– Tuning cases automatically set up
• Suspension Modeling simplified and streamlined
– Less detailed knowledge required
• Fatigue Analysis improved
– Additional solver implemented
– Material library expanded
Tire Model Generation
Create tires with easy template and helpful diagrams,
which pop ups when mouse hovers over each parameter.
Tire / Cleat Test Setup
Assembly Tire / Suspension
• A revolute joint is created to
assemble the tire to suspension
•
Align Tire
• Camber Angle
• Toe Angle
VPG Road Surface Generation
Import road
from built-in library (12 roads)
from user’s file
VPG Road Surface – Parametrically Defined
Create Parametric Road
Plank Road
Pothole Road
Curb Road
Roof Road
Sine Road
Crown Road
Find Out More…
• Contact Arthur Tang (atang@eta.com)
• Visit www.eta.com or www.inventiumsuite.com
• View PreSys demos on YouTube channel “etainfo1”
Thank you for using
ETA’s Software Products