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  NEiNastran

NEiNastran

NEiFusion

 
NEiFusion
 Features

Overview
NEiFusion combines a FEM Modeler with comprehensive pre- and post-processing capabilities, and NASTRAN Solvers. Parts and assemblies can be analyzed for a wide spectrum of static, dynamic, and thermal loading. NEiFusion features true geometry associativity, composite elements, custom coordinate systems and nonlinear analyses for plasticity and true surface to surface contact.
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With NASTRAN being one of the most widely used solutions, NEiFusion users can now communicate their data to most standard pre- and post-processors through support of the NASTRAN file format. This provides versatility to a product which is already easy to use and backed by the renowned NASTRAN solution.

 Capabilities:
General Capabilities
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 Full single-window integration between solid modeling and analysis
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 Full support of Windows® functions such as drag-and-drop, point-and-click, and cut-and-paste
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 Dynamic viewing (zoom, pan, rotate, sectioning) by mouse or advanced 3D pointing devices
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 Toolbars for fast access to main functionality
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 Flexible model coloring and transparency control (parts, assemblies, single or groups of faces, etc.)
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 Direct use of CAD geometry for analysis
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 Direct application of analysis input data to CAD geometry
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 3D visualization of analysis results on original CAD geometry
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 FeatureManager™ for geometry, analysis and result visualization data
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 Customizable analysis tree
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 Dynamic editing of all geometric and analysis features
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 Copy and paste of features
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 Powerful configuration management for easy “what if ”design variations (geometrical and physical)
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 Comprehensive support for bi-directional CAD data exchange with most major CAD packages
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 Comprehensive, context-sensitive HTML-based help system and tutorials
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 OpenGL graphics taking advantage of the latest Computer Graphics chips
CAD Interoperability
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 Native file translators to and from nearly all mechanical CAD products on the market today: SolidWorks®, Pro/ENGINEER®, IPT (Autodesk Inventor®), Mechanical Desktop®, Unigraphics®, PAR (Solid Edge®), CADKEY®, IGES, STEP, Parasolid®, SAT (ACIS®), VDA-FS, VRML, STL, DWG, DXF™, TIFF, JPG, Viewpoint, RealityWave, HSF (Hoops)
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 Support of seamless integrated third-party bi-directional file translators, e. g. for CATIA®, Pro/ENGINEER®, etc.
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 Supported standards: ANSI, DIN, ISO,GOSJIS, GB and BSI
Part Modeling
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 Feature based, fully associative, parameterized solid modeling
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 FeatureManager™ dynamic design tree (e.g. re-order, drag & drop, etc.)
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 In-place editing
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 Integrated sketching (dynamic referencing)
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 Extrudes, revolves, feature patterns, holes, etc.
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 Advanced 3D operations, e.g. lofting, sweeping, complex blending, filleting, etc.
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 Advanced shelling, midsurfaces
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 Multi-body support
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 Advanced surface modeling: lofts and sweeps with guide curves, fill-in holes, drag-handles for tangency control, etc.
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 Trimming, extending, filleting, and knitting surfaces
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 Translating, rotating, copying, and mirroring surfaces
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 Support for creating 3D models from existing 2D data, e.g. 2D-to-3D extrusion, etc.
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 Multiple design variations with Configuration Management, DesignTables

Assembly Modeling
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 Fully associative: referencing of other parts and maintaining relationships when creating new parts
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 Complete range of mating conditions, snap-to-fit SmartMates™
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 Locating conflicting mate relationships with Mate Diagnostics
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 Dynamic assembly visualization
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 Real-time previewing of components, parts
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 Multiple sub-assembly support
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 Design-in-the-context of an assembly (references to other geometry, associative relationships, direct/indirect constraints)
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 Easy designing and changing of parts and subassemblies from within an assembly
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 Mirrored components to create new parts and assemblies based on existing designs
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 Multiple assembly design variations with Configuration Management for easy “what if” design scenarios
Meshing
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 Global and local controls for part geometry with default sizing
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 Mesh control on arbitrary user defined regions
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 Sketch line or curve meshing
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 Free surface meshing: quads or triangles
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 Continuous shell (quad or tri) meshing
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 Auto mesh, loads and constraints update with geometry changes
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 Mesher Status Window
Assembly Connectors
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 True surface contact
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 Automatic contact
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 Thermal contact resistance
Loads and Boundary Conditions
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 Uniform pressure and force on faces, edges and vertices
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 Directional pressure and force
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 Acceleration loads (gravity)
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 Enforced displacement and rotations
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 Temperature, default temperature and heat flux
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 Symmetric, antisymmetric, axisymmetric boundary conditions
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 Fixed constraints on faces, edges and vertices
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 Directional and prescribed constraints
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 Thermal constraints
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 Thermal body loads
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 Initial temperature conditions
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 Custom colors and sizes for loads and constraints
Element Library
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 1D line (CBEAM and CBAR)
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 2D linear shell (CQUAD4 and CTRIA3)
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 2D parabolic shell (CQUAD8 and CTRIA6)
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 3D linear and parabolic tetrahedron (CTETRA)
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 Composites with plates and shells
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 Surface to surface contact with manual or automatic recognition of surfaces
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 Rigid elements
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 Conduction
Materials
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 Isotropic
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 Orthotropic
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 Nonlinear materials
 
 - Nonlinear elastic
 
 - Bilinear Elasto-plastic
 
 - Plastic
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 Hardening
 
 - Isotropic
 
 - Kinematic
 
 - Combined
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 Yield
 
 - Von Mises
 
 - Tresca
 
 - Mohr-Coulomb
 
 - Drucker-Prager
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 Custom stress-strain curve
Material Orientation
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 Vector projection
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 Curve tangent
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 Rotated curve tangent
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 Translated curve tangent
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 Surface U and V directions
Properties
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 1D beam (PBEAM) and bar (PBAR)
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 2D plate (PSHELL) and composite (PCOMP)
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 3D solid (PSOLID)
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 Contact (BSCONP)

 
Surface Contact
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 Automatic surface contact generation
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 Free and welded contact types
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 Static friction
Coordinate Systems
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 User defined Cartesian, cylindrical and spherical coordinate systems
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 Referencing global assembly, part or custom coordinate systems for loads and constraints
Analysis Types
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 Linear statics
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 Normal modes
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 Linear buckling
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 Nonlinear stress
• Thermal stress
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 Prestress static
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 Composite
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 Contact analysis in assemblies
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 Linear steady state heat transfer
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 Optimization
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 Modal Transient Response
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 Direct Transient Response
Composite Analysis
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 Various failure theories supported:
• Hill
• Hoffman
• Tsai-Wu
• Max. stress
• Max. strain
• NASA LARC02
Optimization Analysis
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 Design objectives to minimize, maximize or reach target values
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 Optimize weight, stress, temperature and natural frequency
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 Parametrically update geometry dimensions
Drop Testing
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 Automatic impact wizard
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 Acceleration and contact direction input
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 Time stepping automatically calculated based on natural frequency

Coordinate Systems
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 Cartesian, cylindrical and spherical coordinate systems
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 Referencing global assembly, part or custom coordinate systems
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 Display toggles
Post-Processing
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 Stress, deformation plots
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 Principal and directional stress plot
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 Strain plot
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 Resonant frequencies, mode shape plots
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 Temperature, heat flux plots
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 Iso-surfaces
• Results across composite laminates
• Export Nastran input deck to other FEA systems
• Customizable material library
• Output within NEi  Fusion Modeler view with sensitive Help and analysis control, such as pausing and solution termination
• Import results using FEMAP Binary Neutral file format (FNO)
• Single and multi-set animations
• Max/min labels
Analysis Report Writer
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 HTML formatted reports for linear static analysis
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 Customizable report format
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 Step by step wizard for report generation process
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 Includes standard model data
Direct Matrix Input Grid (DMIG)
Support (Analyst version only)
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 Stiffness matrix import and export
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 Conductivity matrix import and export
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 Mass matrix import and export
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 Load vector import and export
Global Matrix Output (Analyst version only)
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 Stiffness matrix
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 Conductivity matrix
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 Mass matrix
Model Reduction (Analyst version only)
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 Static condensation
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 Export reduced stiffness matrix using DMIG format
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 Automated model reduction tools and correction
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 Export reduced mass, stiffness, damping, and load matrices to DMIG or NASTRAN Output2 (.OP2)
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 Craig-Bampton reduction (component modes synthesis)
Modal Correlation (Analyst version only)
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 Modal assurance criterion (MAC) output and 3D plots
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 Model cross-orthogonality output and 3D plots
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 MS Excel comma separated variable (.CSV) and NEiNastran modal database (.MDB) input formats
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 Automatic interpolation of input data to closest grid
Editor (Analyst version only)
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 Fully integrated and customizable Nastran Editor controls program operation and provides results summary data through an easy to use GUI
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 Features tabbed windows to give immediate access to all input and output files
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 Field markers make manual editing simple and increase productivity dramatically
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 Complete online documentation and context sensitive help
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 Tabular results listing
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 Detailed HTML report customization
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 Single and multi-load set animations
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 Interactive data query with mouse
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 Parameter setup and control
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 Real time control of solution parameters
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 Real time 2D x-y plotting and 3D deformed shape and contour plotting
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 Batch job queuing system
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 Graphical nonlinear convergence form displays nonlinear work, load, and displacement convergences in percent complete bar format
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 Configuration trade study generator automatically generates queued models with user specified design variable changes such as thickness or dimension for design sensitivity analysis
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 Real time deformed shape results contour displays with automatic updating for nonlinear static and transient solutions
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 Real time results x-y plot support at min/max and user specified models locations with automatic updating for nonlinear static and transient solutions
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 Export x-y plots to MS Excel Comma Separated Variable (.CSV) file format
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 3D vertical bar plot support for Modal Assurance Criterion (MAC) and Modal Cross Orthogonality (MXO)
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 User defined settings can be customized and saved for different solution types
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 Special input forms for classified DDAM data allows models to run in an unclassified environment
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 Parabolic shell to linear shell element converter
Compatibilities
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 Nastran input file can be sent to any Nastran FE Solver including NEiNastran, NX Nastran, or MSC.Nastran
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 Binary results file in OP2 format usable by all Nastran solvers and wide variety of post-processors
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 Part and Assembly geometry is fully compatible with SolidWorks’ Parts and Assemblies
User Interface
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 Menu support for all features
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 Toolbar shortcuts
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 Modern tree view layout
International Languages
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 GUI - English, Japanese, Italian, French, others upon request
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 Technical documentation - English

NEiFusion
From Noran Engineering, Inc.

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Beta Engineering Consultant Co.,Ltd.
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