Version 4 Whats New in

Enhancements n Geometry Enhancements n STEP CAD Interface n Improved Semi-Automatic Hex Meshing n Attributes (Properties, Materials, etc.) Associated with Geometry n General Beam Section Calculator n Mesh Connection: Zip, Unzip, Link

Enhancements n MSC/NASTRAN Version 70 n Response Spectrum Analysis n MSC/NASTRAN OP2 Binary Results File n Floating Network License n Free Body Diagrams and Grid Point Force Balances n Graphics Enhancements n Scripting Language n Polygon and Freehand Selection

Geometry Modeling n Imported Geometry Manipulation –Use of Surfaces on Solid copy, extrude etc.

Semi-Automatic Hex Meshing n More Approaches and Control on Mapped Surface Meshing Semi-Automatic Hex Meshing

Geometry Assigned Attributes n Assign Materials and Properties to Solids

General Beam Section Calculator n Uses any Surface as Cross-Section n May have Internal Loops Tools | Section Properties (new option) Calculates all Properties, Including Torsional and Warping Constants

General Beam Section Calculator n Display of Actual Beam Cross-Sections

Graphics Enhancements n Transparent Solids/Materials/Elements

Solver Enhancements n Kernels Tuned n New Compiler –5-10% Performance improvement n Reduced Memory Requirement –less CPU time for jobs that spill n Iterative Solver –less disk usage n Frequency Response Enhancements

MSC/NASTRAN V70 Vs. V68 n Wheel –Statics, 32,184 dof n Crank Shaft –Statics, 30,934 dof n Crank Shaft –Modes, 30,934 dof

MSC/NASTRAN V70 Vs. V68 n Aircraft Part –Buckling, 66,000 dof n Transmission Part 1 –Modes, 99,191 dof n T-Joint –Statics, 134,333 dof n Transmission Part 2 –Statics, 139,649 dof

MSC/NASTRAN V70 Vs. V68 n Car Body –Modes, 331,468 dof

Response Spectrum Analysis n New Analysis Type n Continues from Response Spectra Generation

OUTPUT2 Binary Results n The Binary OP2 File now Supported n Compliments the ASCII Output File (F06) n Over 8X Faster for Large Results Files

Grid Point Force Balance n Grid Point Force Balances n Free Body Diagrams

Results Viewing Enhancements n Simultaneous Display of Top and Bottom Surfaces Display Shells as Solids

Scripting Language n New Script Editor –Supports vb form files –Integrated graphical dialog box designer n Customize Menu Commands –Build your own menus to run scripts and program files n Extended Functionality –Over 100 new MSC/N4W functions implemented

Smart Results Averaging n Option on Post Data n Elemental Data now Provides –No averaging –Double-sided on shells –Smart averaging, e.g., by property, layer, color or angle

Mid Plane Extraction n Semi Automatic and Manual Tools to Create Surface Mid Plane Models

Creating Mid Plane Models n Simple Case –Fully automatic mid planes –14000 nodes, 6600 tetra, vs. –450 nodes, 425 parabolic shells (DOF 16:1)

Creating Mid Plane Models n Moderate Case –All but 2 surfaces automatic –35000 nodes, tetra, vs. –2100 nodes, 2200 parabolic shells (DOF 8:1)

Creating Mid Plane Models n Real CAD Geometry –Automatic created about 80% of needed surfaces –Manual tools complete surface model in ~15 minutes

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