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Step support for_design_and_engineering_analys Presentation Transcript

  • 1. STEP Support For Design And Analysis Processes PDES, Inc./NASA STEP Tutorial Session NASA Jet Propulsion Laboratory January 16, 2001
  • 2. General Comments
      • Basis Of MSC.Software Products and Services
        • Design Simulation And Engineering Analysis - CAE
      • STEP Application Protocols Presently Supported
        • AP203 (IS) – Design Centric/Generally CAD Generated
        • AP209 (DIS) – Design And/Or Analysis Centric/CAD And/Or CAE Generated
      • MSC.Software STEP Usage Philosophy - Two Basic Paradigms
        • AP203 Usage – Primarily A One-Direction Design Data Only Exchange
          • Nominal Shape & Associated Configuration Management/Product Structure Generated In CAD Product And Output As An AP203 File
          • AP203 File Imported To Verify and Validate Design Using Analytical Simulation Processes
        • AP209 Usage – Bi-Directional Design & Engineering Analysis Data Exchange
          • Same Two Items Defined For AP203 Usage (AP209 Can Be Substituted For AP203)
          • Idealized Shape Generated From And Associated To Imported Nominal Shape
          • FEA Model And Analysis Results Generated
          • Analysis Version/Product Structure Generated And Associated To Imported Design
          • Entire Associated Design And Analysis Discipline Data (Nominal Shape, Idealized Shape, FEM/FEA, Version Control/Product Structure) Exported For Multi-Discipline Exchange And/Or For Repository Storage
  • 3. MSC.Patran (Version 9.5) STEP AP203 Coverage
      • AP203 Import (See Backup Information For Specifics)
        • CC2 through CC6 supported
        • Minimum subset of CC1 supported
        • Group based geometry supported
        • Assemblies supported (assembly instances duplicated into individual MSC.Patran Groups)
        • Assembly support available only for CC6 entities
        • Names of geometric entities preserved using tagged CAD association
      • AP203 Export (See Backup Information For Specifics)
        • All MSC.Patran geometry entities supported
        • Imported CC1 exported unaltered
        • Names of geometric entities preserved using tagged CAD association
        • Only CC2 and CC6 shape representations supported
  • 4. MSC.Patran (Version 9.5) STEP AP209 Coverage
      • AP209 Import/Export (See Backup Information For Specifics)
        • Geometry/Configuration Control (= AP203 Coverage)
        • Nodes/Elements
        • Materials
        • Element Properties
        • Loads and Boundary Conditions
        • Load Cases
        • Analysis Controls
        • Results (Linear Statics, Normal Modes)
      • AP203/AP209 translators Web downloadable:
        • http://www.mscsoftware.com/ (Select the following in order: Products, Support, Product Updates = MSC.Patran, Software and Online Documentation Updates, MSC.Patran 2000r2 (V9.5) STEP Translator (AP203/AP209))
  • 5. MSC Focus Today - AP209 Acceptance/Missionary Role
      • AP209/IS Status Scheduled For 2001
      • Translators Presently Offered By One CAD/CAE Vendor – MSC.Software
      • Theorem Solutions Developing CATIA/V4 AP209 Translators (Lockheed, Boeing Electric Boat Funded In Support Of The PDES, Inc. Engineering Analysis Pilot Project)
      • Why AP209?
    PDM CAD CAE AP209 Significantly Extended Source Of Enterprise Wide Data
      • CAE Vendor Product Neutral File
      • Industry Standard Data Model For Corporate Wide Simulation Process Integration
      • Single Design AND Analysis Data Source Within The Enterprise PDM
      • Platform To Extend Engineering Analysis STEP Coverage Into All Analysis Disciplines (Part 107)
      • Long Term Repository Critical To Aircraft Industry
  • 6. AP209 Added Value To The Design/Analysis Process
      • Multi-Discipline Version Control
        • Design controlled by designer (ddpd)
        • Analysis controlled by analyst (adpd)
          • Many types of analysis
          • Analysis revised independent of the design version
          • Analysis version is always with respect to a design version
        • Relationship provided to associate design and analysis versions (advr)
      • Extended Shape Representations
        • AP203 Nominal Design Shape (NDS) - Design generated
        • Idealized Analysis Shape (IAS) and Node Shape (NS) - Analyst generated
        • NDS forms basis for IAS
        • New shape extensions to AP203 - Constituent_Shape_Representation
          • Defined to support composites
          • Possibly could support non-composites attributed design shape extensions
            • Curve with cross-section shape
            • Surface with thickness (and/or associated attribute tables)
      • Foundation for Design Intent/Analysis Review Communications Between Designer and Analyst
        • additional_design_information (Design Specifications, Material Specifications, etc.)
        • analysis_report_representation (Text Documents, Graphical Documents)
  • 7. g_m_r a_d_v_r part_version part d_d_p_d a_d_p_d analysis_version analysis n_d_s i_d_s g_m_r shape_aspect shape g_m_r analysis_shape node_shape point_model g_m_r fea_model node element fe_analysis CAE CAD parent_shape geometry part_number version design d_s version analysis_number analysis basis d_s d_s m_s_w_t a_b_r f_b_r n_t_s_a_w w_w_t c_sheet_r d_m ply_shape b_sheet_r t_d_g_s constituent_shape_representation constituent_part of_part p_p_s l_p_s f_p_p_s ply_piece ply thickness ply_laminate processed_core composite_assembly filament_laminate filament_laminate_shape shape X-section Shape g_r a_r_r t_r d_s a_d_i specification AP203 Coverage AP209 (ARM) On-A-Page (See Backup Information For Symbol Definitions)
  • 8. MSC.Patran Beta Version AP209 Extensions
      • Geometry/Configuration Control
        • Visualization Tools for Configuration Control Data
      • Composites
        • Support for Ply Laminate Tables, Zones (Percentage Laminate Definitions, Thickness Laminate Definitions Comprising Processed Cores), and Smeared Materials
        • Visualization and Manipulation Tools for Ply Laminates, Zones (Percentage Laminate Definitions, Thickness Laminate Definitions),and Smeared Materials
        • New Composite Tools and Database Extensions
          • Zones to Properties
          • Zones to Plies
          • Properties to Zones
          • Plies to Properties
          • Etc.
      • Analysis Report And Document
        • Database Extensions
        • Support for Association of Analysis Reports and Jobs
        • Visualization Tools
  • 9. Geometry (surface + boundary) Geometry (surface + boundary) Mesh * Multiple laminate materials * Orientation w.r.t. reference (element edge, coordinate system, vector) Layer, Material, Thickness, Orientation 1, UD 0.25 0 degrees 2, woven 0.4 45 degrees 3, core 10.5 0 degrees etc. * Ply layup sequence * Ply shape & fiber orientation may vary Ply, Material, Nominal Thickness 1, UD 0.25 2, woven 0.4 3, core 10.5 etc. Plies Zones Properties NB: Elements may follow ply boundaries for detailed analysis * Thickness Laminate Table * Percentage Laminate Table * Smeared Material Alternate Representations of Composites Supported By AP209
  • 10. Flat Pattern, 3D Plies, FEM Sample Problem
  • 11.  
  • 12.  
  • 13.  
  • 14. AP203/AP209 Free Web-Based STEP Viewer
      • Developed For the PDES, Inc. Engineering Analysis Pilot Project To Support Promotion Of AP209 Extended PDM/CAD/CAE Data Coverage
      • Beta Version 5 Available Today
        • Geometry - Conformance Classes 2 and 6 Only
        • PDM - Minimum Subset Of Conformance Class 1
        • Mesh – Nodes/Elements
        • Materials/Properties (Tree Mode Only)
        • Load Cases/LBCs (Tree Mode Only)
      • Future Versions Will Extend Coverage
        • Full Graphical Viewing and Selection of AP209 Properties, Materials, LBCs, Results
        • Additional Geometry Classes
      • Access At http://simulate.engineering-e.com/demo (Must Register And Download Citrix Plug-in Before MSC.StepViewer Available)
  • 15. MSC.Software Demo Web Site For StepViewer Access
  • 16.  
  • 17.  
  • 18.  
  • 19.  
  • 20. AP209 Awareness Through Demonstrations
    • (Completed/AP209 CD)
      • PDES, Inc. Design-To-Analysis Phase 1 (1994)
        • Ford, Boeing, Lockheed, ITI, MSC
        • Auto And Composite Tank Structures
        • CAD-To-CAE-To-CAE
        • COTS CAD/CAE (ARIES, PATRAN, NASTRAN, ITI/STRESSLAB)
        • Linear Static FEA
        • Video Generated, PDES, Inc. TAC Demo
      • DARPA MADE/IPDE Program Phase 1 (1996)
        • Boeing, ASU, MSC
        • Aircraft Structures
        • CAD-To-CAE(CFD)-To-CAE(Structures)-To-CAE(CFD)
        • COTS CAD/CAE (CATIA, PATRAN, NASTRAN)
        • Boeing Proprietary CFD (AGPS/A502)
        • Iterative 1st Order CFD And Linear Static FEA
        • In-House Boeing Demo, PDES, Inc. Offsite Presentation
  • 21. AP209 Awareness Through Demonstrations (Cont.)
    • (Completed/AP209 DIS) - Lockheed, Electric Boat, MSC
      • Electric Boat Design-To-Analysis Process (1998)
        • Ship Structures
        • CAD-To-CAE-To-CAE-To-CAD
        • COTS CAD/CAE (PRO/E, PATRAN, NASTRAN)
        • Electric Boat Proprietary (COMMANDS)
        • Multiple Idealized Geometric Shapes And FEM/FEA Models
        • Linear Static And Dynamic FEA
        • PDES, Inc. TAC Demo (November 1998)
      • Lockheed Design/Manufacture/Analysis Composites Process (1999)
        • Composite Aircraft Structures
        • CAD/CAM-To-CAE-To-CAD/CAM
        • COTS CAD/CAE (CATIA, FiberSIM, PATRAN, NASTRAN)
        • Lockheed Proprietary (ASSS, PICASSO)
        • Composite Structure Geometric Shapes (Ply/Zone) And FEM/FEA Models
        • Linear Static And Dynamic FEA
        • PDES, Inc. TAC Demo (June 1999)
  • 22. Backup Information
  • 23. MSC.Patran Version 9.5 AP203 Import Coverage
      • Class2 : Geometrically Bounded Surface Shape Representation
        • Mapped Item
        • Axis2_Placement_3d
        • B_spline surface
        • Rectangular Trimmed Surface
        • Curve Bounded Surface
        • Spherical, Toroidal Surface
        • Swept Surface
        • Circle, Ellipse
        • Trimmed Curve
        • Composite Curve
        • Curve Replica, Offset Curve 3d, Offset Curve 2d, SeamCurve
        • Surface Curve
        • Boundary Curve, Outer Boundary Curve, Composite Curve Segment
  • 24. MSC.Patran Version 9.5 AP203 Import Coverage (Cont.)
      • Class 2: Geometrically Bounded Wireframe Shape Representation
        • Geometric Curve Set
        • Axis2_Placement_3d
        • Points
        • Circle
        • Ellipse
        • Polyline
        • Trimmed curve
      • Class 3: Edge Based Wireframe Shape Representation
        • Edge Based Wireframe Model
        • Axis2_Placement_3d
        • Edge Curve
        • Vertex Point
        • Line , Circle , Ellipse, B_Spline_Curve
        • Parabola, Hyperbola
        • Vertex Geometry (only cartesian point supported)
  • 25. MSC.Patran Version 9.5 AP203 Import Coverage (Cont.)
      • Class 3: Shell Based Wireframe Shape Representation
        • Shell Based Wireframe Model
        • Axis2_Placement_3d
        • Edge Loop
        • Edge Curve
        • Line, Circle, Ellipse, B_Spline_Curves
        • Vertex Geometry (only cartesian point supported)
      • Class 4: Manifold Surface Shape Representation
        • Shell Based Surface Model
        • Axis2_Placement_3d
        • Open shell, Closed Shell
        • Connected Face Set, Face Surface, Oriented Face
        • Elementary Surfaces
        • Spherical, Conical, Toroidal, Plane, Cylindrical
        • Bounded Surfaces
        • B_Spline_Surfaces
  • 26. MSC.Patran Version 9.5 AP203 Import Coverage (Cont.)
        • Swept Surface
        • Surface of Linear Extrusion
        • Edge loop
        • Edge Curve
        • Parabola, Hyperbola, SeamCurve
      • Class 5: Faceted Brep Shape Representation
        • Faceted Brep
        • Axis2_Placement_3d
        • Face_Surface
        • Planar Surfaces
        • Edge Loop
        • Edge Curves
        • Parabola, Hyperbola, SeamCurve
      • Class 6 : Advanced Brep Shape Representation
        • Manifold Solid Brep
        • Next Assembly Usage Occurrence
  • 27. MSC.Patran Version 9.5 AP203 Import Coverage (Cont.)
        • Mapped Item
        • Axis2_Placement_3d
        • Brep with voids
        • Advanced Face
        • Swept Surface,
        • Surface of linear Extrusion
        • Surface of Revolution
        • Edge Loop
        • Edge Curve
        • Oriented Edges
        • B_spline_surface_with_knots
        • Rational_bspline_surface
        • Cylindrical surface
        • Conical Surface
        • Toroidal Surface
  • 28. MSC.Patran Version 9.5 AP203 Import Coverage (Cont.)
        • Plane
        • Quasi uniform surface
        • Line
        • Circle
        • Uniform Surface
        • Uniform Curve
        • Ellipse
        • B spline curve with knots
        • Quasi uniform curve
        • Rational bspline curve
        • Bezier Surface and Curve
        • Spherical Surface
        • Parabola, Hyperbola,
        • Seam Curve
  • 29. MSC.Patran Version 9.5 AP203 Export Coverage
      • Curves (MSC.Patran to AP203 Geometric Entity Mapping)
        • PieceWise_Cubic_Polynomial_Curve -- B_spline_Curve_with _knots
        • IGES_Nurb_Curve -- B_spline_Curve_with _knots
        • IGES_Cubic_Spline -- B_spline_Curve_with _knots
        • IGES_Arc -- Circle
        • IGES_Composite_Curve -- Composite_curve
        • IGES_line -- Line
        • IGES_Conic_Ellipse -- Ellipse
        • IGES_Conic_Hyperbola -- Hyperbola
        • IGES_Conic_Parabola -- Parabola
        • IGES_PieceWise_Linear -- B_spline_Curve_with _knots
        • Rational_Bezier -- B_spline_Curve_with _knots
        • Curve_On_Surface_Isometric -- B_spline_Curve_with _knots
        • Curve_On_Surface_General -- B_spline_Curve_with _knots
        • PDA_line -- Line
        • IGES_Offset_Curve -- Offset_Curve_2d_Offset_Curve_3d
        • CATIA_curve -- B_spline_curve_with_knots
        • COMPUTER_VISION_Curve -- B_spline_curve_with_knots
        • N_Dimensional_Cubic_Spline -- B_spline_curve_with_knots
        • Plane_Project_Curve_Normal -- B_spline_Curve_with _knots
        • Plane_Project_Curve_Vector -- B_spline_Curve_with _knots
  • 30. MSC.Patran Version 9.5 AP203 Export Coverage (Cont.)
      • Surfaces (MSC.Patran to AP203 Geometric Entity Mapping)
        • IGES_Nurb_Surface -- B_spline_surface_with_knots
        • IGES_Trimmed_Surface -- Curve_bounded_surface(Class II) & Advanced_face ( Class VI)
        • IGES_BiCubic_Patch_Network -- B_spline_surface_with_knots
        • IGES_Surface_Of_Revolution -- Surface_Of_Revolution
        • IGES_Ruled_Surface -- B_spline_surface_with_knots
        • IGES_tabulated_Cylinder -- Surface_Of_Linear_Extrusion
        • Rational_Bezier_Network -- B_spline_surface_with_knots
        • Ordinary_Trimmed_Surface -- Curve_Bounded_Surface
        • PDA_Patch -- Plane if Class VI Or B_spline_surface_with_knots
        • Bilinear_Coons_Surface -- B_spline_surface_with_knots
        • IGES_Offset_Surface -- Offset_surface
        • PTC_Plane -- Plane
        • PTC_Cylinder -- Cylindrical_surface
        • PTC_cone -- Conical_surface
        • PTC_torus -- Toroidal_surface
        • PTC_fillet_surface -- B_spline_surface_with_knots
        • PTC_generalised_Coons_Surface -- B_spline_surface_with_knots
        • CATIA_Surface -- B_spline_surface_with_knots
        • PieceWise_Rational_Polynomial_Surface -- B_spline_surface_with_knots
  • 31. MSC.Patran Version 9.5 AP203 Export Coverage (Cont.)
        • Surface_On_Solid -- B_spline_surface_with_knots
        • Curve_Interpolating_Surface -- B_spline_surface_with_knots
        • Extruded_Surface -- Surface_of_linear_Extrusion
        • Glide_Surface -- B_spline_surface_with_knots
        • Composite_Trim_Surface -- B_spline_surface_with_knots
        • PTC_sphere -- Spherical_surface
      • Solids (MSC.Patran to AP203 Geometric Entity Mapping)
        • ASM solids -- B-Rep
        • Ordinary Brep -- B-Rep
  • 32. MSC.Patran Version 9.5 AP209 Import/Export Coverage
      • Geometry/Configuration Control
        • Complete MSC.Patran AP203 geometry coverage provided
        • Minimum subset of CC1 plus analysis/design version association entity
      • Nodes
        • Global coordinate system
      • Elements
        • Volume 3D
          • Hexahedral elements -- HEX8, HEX9, HEX20, HEX21, HEX26, HEX27, HEX32&HEX64
          • Pentahedral elements -- WEDGE6, WEGE15 & WEDGE24
          • Tetrahedral  elements -- TET4,TET10&TET16
        • Surface 3D
          • Quadratic elements -- QUAD4,QUAD5,QUAD8, QUAD9,QUAD12&QUAD16
          •   Triangular elements -- TRI3,TRI4,TRI6&TRI9 
        • Curve 3D
          • BAR2,BAR3&BAR4 
  • 33. MSC.Patran Version 9.5 AP209 Import/Export Coverage (Cont.)
      • Materials
        • Isotropic,  Orthotropic and Anisotropic 
      • Element Properties
        • Surface elements - Membrane Stiffness, Bending Stiffness, Coupling stiffness, Shear stiffness and thickness 
        • Curve elements - Cross sectional  area, second moment of inertia, torsional & warping constants, and non-structural mass. Beam cross section geometry and beam properties association maintained
        • (Only Properties related to Nastran preference are currently supported) 
      • Loads and Boundary Conditions
        • Point loads - At nodal positions
        • Pressure loads - Element uniform and element varying pressure loads are supported for loads applied on faces of Volume_3d_Elements and Surface_3d_elements
        • Distributed loads - Element uniform and element varying  distributed loads are supported for loads applied on  Curve_3d_Elements
        • Single point constraints - Nodal displacements
        • Multi point constraints - Only explicit MPCs  are supported
        • Support for constant value LBCs
        • (Only LBCs Which are associated with at least one Load case are exported)
  • 34. MSC.Patran Version 9.5 AP209 Import/Export Coverage (Cont.)
      • Load Cases
        • Load Cases which have at least one of the supported  LBCs are exported
      • Output Requests
        • Support for multiple jobs 
        • (Output requests are supported only for Nastran jobs)
      • Results
        • Static analysis
          • Results are supported for elemental stresses, strains, and nodal displacements 
        • Normal modes analysis
          • Modes and nodal eigenvectors
        • (Support is available for  only those load cases which are associated with a single result sub case)
  • 35. AP209 ARM Entities Legend a_d_v_r - analysis_design_version_relationship d_d_p_d - design_discipline_product_definition a_d_p_d - analysis_discipline_product_definition g_m_r - geometric_model_representation n_d_s - nominal_design_shape i_d_s - idealized_design_shape f_m_p - fea_material_property d_s - defining_shape a_b_r - advanced_boundary_representation m_s_w_t - manifold_surface_with_topology w_w_t - wireframe_with_topology f_b_r - faceted_boundary_representation n_t_s_a_w - non_topological_surface_and_wireframe ply _p_s - ply_piece_shape p _o_a - ply_orientation_angle p _s_m - ply_stock_material p _l_s - ply_laminate_shape ply_l_t - ply_laminate_table p_l_s_d - ply_laminate_sequence_definition p_p_s - projected_ply_shape l_p_s - laid_ply_shape f_p_p_s - flat_pattern_ply_shape part_l_t - part_laminate_table c_sheet_r - composite_sheet_representation c_a_s - composite_assembly_shape c_a_t - composite_assembly_table c_a_s_d - composite_assembly_sequence_definition z _s_m - zone_structural_makeup %_l_t - percentage_laminate_table t_l_t - thickness_laminate_table %_ply - percentage_ply z_s_m_s_r - zone_structural_makeup_shape_representation e_z_s - edge_zone_shape p_z_s - point_zone_shape d_m - defining_model b_c_z - boundary_curve_zones t_d_g_s - three_d_geometry_set b_sheet_r - beveled_sheet_representation c_s_s_s - cross_section_shape_selection