INTEGRATION OF MSC PATRAN WITH CAD PACKAGES · UNIGRAPHICS CAD MODEL IMPORT Set Unigraphics as the...
Transcript of INTEGRATION OF MSC PATRAN WITH CAD PACKAGES · UNIGRAPHICS CAD MODEL IMPORT Set Unigraphics as the...
S3-3Copyright 2010 MSC.Software Corporation
Introduction
● This SimAcademy session is intended for the Academic audience and
beginning user and covers the basics of File Import
● File/Import allows for the importation of model files from a number of
different sources, such as a Patran database, Patran 2.5 neutral file, MD
Nastran input file format, or one of several CAD formats such as:
● CATIA
● PROENGINEER
● UNIGRAPHICS
● PARASOLID
● ACIS
● IGES FILE
● PATRAN NEUTRAL FILE
● STEP FILE
● Once the model is imported, you can use mesh, use the core editing
tools in PATRAN if you need to, or use Feature Recognition to
change/delete features such as holes, fillets and chamfers
S3-4Copyright 2010 MSC.Software Corporation
Supported CAD Versions For PATRAN 2010
Source: PATRAN 2010 Release Guide
S3-5Copyright 2010 MSC.Software Corporation
Where to Find Documentation & Updates
● SimCompanion (http://simcompanion.mscsoftware.com)
● Click on “Product Info and Docs”
● Product Updates
● https://mscsoftware.subscribenet.com
S3-8Copyright 2010 MSC.Software Corporation
FILE IMPORT OPTIONS (Cont.)
Geometry kernel type
CAD part
Standard format
S3-9Copyright 2010 MSC.Software Corporation
CATIA CAD MODEL IMPORT
● Several types of CATIA files can be imported● CATIA V4 Model: model file, e.g. dogbone.model
● CATIA V5 CATPart: part file, e.g. catbone.CATPart
● CATIA V5 CATProduct: product file, e.g. crockbone.CATProduct
● CATXPRES File: output file, e.g. otherbone.cat
S3-10Copyright 2010 MSC.Software Corporation
CATIA CAD MODEL IMPORT
● CATIA V4 Model, CATIA Options… include● Import to Parasolid: Yes
● Imported geometry will be Parasolid type geometry
● Solid Type
● Select simple (6 faces) or B-rep solid
● Trimmed Surface Type
● Select simple (4 edges) or general trimmed
● Import NoShow Entities: Yes
● CATIA V4 entities classified as NoShow will be imported
● Import Attributes
● If Yes, attributes associated to the geometry will be
imported. If No, the import performance will be
improved.
● Entity Layers
● All layers, or selected layers, are imported
● Create Groups from Layers
● Creates Patran groups from CAD layers automatically
● Group name: prefix_Ln
CATIA V4 Model
S3-11Copyright 2010 MSC.Software Corporation
CATIA CAD MODEL IMPORT
● CATIA V4 Model, CATIA Options… include● Import to Parasolid: Yes (continued)
● Group Classification
● Displays dialog box for directing entities to Patran groups
● Model Units
● Allows the model units to be over-ridden
● Sew Sheet Bodies
● Patran Sew: sew sheet bodies using Patran software
● Verify Boundary: similar to Geometry: Verify/Surface/Boundary
● Equivalence Edge Vertices
● Equivalence vertices during import
● Save Transmit File
● Save Parasolid xmt transmit file created during import
● Allow Duplicate CAD Model
● Allows a model with same name as a model in the database to
be imported
CATIA V4 Model
S3-12Copyright 2010 MSC.Software Corporation
CATIA CAD MODEL IMPORT (Cont.)CATIA V4 Model
● CATIA V4 Model, CATIA Options… include● Import to Parasolid: No
● Imported geometry will not be Parasolid type geometry,
but SGM geometry (Patran native Solid Geometry Model)
● Entity Layers
● All layers, or selected layers, are imported
● Group Classification
● Displays dialog box for directing entities to Patran groups
● Create Groups from Layers
● Creates Patran groups from CAD layers automatically
● Group name: prefix_Ln
S3-13Copyright 2010 MSC.Software Corporation
● Two buttons● Pro/ENGINEER CAD model import
● Direct Mesh for meshing Pro/ENGINEER solids
● Import to Parasolid -- create Parasolid or not
● Part -- individual part; need license
● Assembly -- set of parts; need license
● Primitive Geometry -- created from CAD import
into Patran; no license needed
PROENGINEER CAD MODEL IMPORT
S3-14Copyright 2010 MSC.Software Corporation
PROENGINEER CAD MODEL IMPORT
DIRECT MESH
● Use Direct Mesh to mesh Pro/ENGINEER solid in
Pro/ENGINEER environment
● Pro/ENGINEER is executed
● Geometry is accessed in Pro/ENGINEER through its
API
● Meshing is done using Direct Mesh
● Resulting mesh is read into Patran database
● Must have Pro/ENGINEER installed, and have the
Nastran preference in Patran
S3-15Copyright 2010 MSC.Software Corporation
UNIGRAPHICS CAD MODEL IMPORT
● Set Unigraphics as the Source
● Select desired UG part file
● Optional filtering (Unigraphics Options…) of
entities is available based on entity type (e.g.
Sheet Body), Patran groups from CAD layers,
if sewing is to be done, etc.
S3-16Copyright 2010 MSC.Software Corporation
EXPRESS NEUTRAL FILE
● Express Neutral files are intermediate files that
are created during a specific CAD model
access
● Express Neutral files are portable when created
as text files
● Express Options provide capabilities such as
filtering entities, group creation, model preview
S3-17Copyright 2010 MSC.Software Corporation
IGES FILE
● IGES format
● Import to Parasolid: create Parasolid or not
● Supports
● Point
● All curve types
● All surface types, except Patran Composite
● B-rep solid
S3-18Copyright 2010 MSC.Software Corporation
PATRAN DATABASE ACCESS
● Patran database content can be transferred between
different databases.
● Import option allows the specification of entity type, ID
offset, name prefix, and conflict resolution tools.
● Equivalence Option allows common entities in the
databases to be equivalenced.
● Preview option provides access to summary
information.
● Through Groups, allows for importing just the entities
you need
S3-19Copyright 2010 MSC.Software Corporation
● Patran databases can
be accessed by
selecting “MD.Patran
DB” as the source.
PATRAN DATABASE ACCESS (Cont.)
S3-20Copyright 2010 MSC.Software Corporation
● Importing options
control:
● Which entities to
import
● Specification of
entity ID offset
● Specification of
unique names, e.g.
prefix for group
names
PATRAN DATABASE ACCESS (Cont.)
S3-21Copyright 2010 MSC.Software Corporation
PATRAN NEUTRAL FILE ● Patran 2.5 neutral file
● Geometry
● Parametric cubic geometry only, e.g ParametricBiCubic
● Finite elements
● Nodes, elements
● Material and element properties
● Loads and boundary conditions
● Neutral File convention can be selected under Geometry
Representation in Preferences / Geometry
● MSC.Thermal still uses neutral file as input
S3-22Copyright 2010 MSC.Software Corporation
STEP FILE
● ISO 10303 STEP (Standard for the
Exchange of Product Model Data)● Application Protocols (AP)
● AP 203: geometry and configuration controlled design
data
● AP 214: represents all types of geometry, including
pipe and harness data, and components
● AP 209: finite element model, including composites,
and results
S3-24Copyright 2010 MSC.Software Corporation
FILE TYPES EXPORTED
● Parasolid xmt file
● Specific types of parasolid geometry
● Curves
● Surfaces
● Solids
● Can specify the parasolid version
S3-25Copyright 2010 MSC.Software Corporation
FILE TYPES EXPORTED (Cont.)
● CATIA V4
● Specific entity types
● Curves
● Surfaces
● Solids
S3-26Copyright 2010 MSC.Software Corporation
FILE TYPES EXPORTED (Cont.)
● IGES
● Export through Parasolid: create a Parasolid
file or not
● Specific entity types
● Curves
● Surfaces
● Solids
● Nodes and elements
● Coordinate frames
● No results
● Select groups for export
S3-27Copyright 2010 MSC.Software Corporation
FILE TYPES EXPORTED (Cont.)
● Patran 2.5 neutral file
● Specific entity types
● Nodes
● Elements
● Material properties
● Element properties
● No results
● Parametric cubic geometry only
● Select groups for export
S3-28Copyright 2010 MSC.Software Corporation
FILE TYPES EXPORTED (Cont.)
● STEP
● Application Protocols (AP)
● AP 203
● AP 209
● AP 214
● AP 203, 214 entities
● Curves
● Surfaces
● Solids
● AP 209 entities
● Limited geometry
● Mesh
● Analysis
● Results
S3-29Copyright 2010 MSC.Software Corporation
AUTOMATIC FEATURE RECOGNITION
● Though PATRAN is not a substitute for a CAD program,
it does have some robust features to allow you to build
and edit geometry
● One of these is the Automatic Feature Recognition Tool
● New release functionality in Patran 2008r1
● Previously in pre-release status
● Allows editing or removal of holes, chamfers and blends
(fillets) in Parasolid geometry
● Accessed from Tools/Feature Recognition
● FEM updated automatically after edits