1 / 35

STEP Support For Design And Analysis Processes

STEP Support For Design And Analysis Processes. PDES, Inc./NASA STEP Tutorial Session NASA Jet Propulsion Laboratory January 16, 2001. General Comments. Basis Of MSC.Software Products and Services Design Simulation And Engineering Analysis - CAE

kenny
Download Presentation

STEP Support For Design And Analysis Processes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

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? Significantly Extended Source Of Enterprise Wide Data PDM • 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 CAD CAE AP209

  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. AP209 (ARM) On-A-Page AP203 Coverage shape parent_shape constituent_part fea_model shape_aspect part geometry ply_laminate part_number g_m_r node fe_analysis of_part part_version processed_core element g_r t_r CAE CAD version a_d_i analysis composite_assembly a_r_r d_d_p_d analysis_number design specification ply_piece analysis_version analysis a_d_v_r n_d_s d_s version filament_laminate d_s a_d_p_d X-section Shape g_m_r basis filament_laminate_shape a_b_r analysis_shape g_m_r m_s_w_t constituent_shape_representation d_s w_w_t point_model f_b_r b_sheet_r t_d_g_s c_sheet_r i_d_s node_shape n_t_s_a_w d_m d_s shape ply_shape ply g_m_r thickness (See Backup Information For Symbol Definitions) p_p_s l_p_s f_p_p_s

  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. Plies Zones Properties NB: Elements may follow ply boundaries for detailed analysis 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. * Thickness Laminate Table * Percentage Laminate Table * Smeared Material Alternate Representations of Composites Supported By AP209

  10. Flat Pattern, 3D Plies, FEM Sample Problem

  11. 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)

  12. MSC.Software Demo Web Site For StepViewer Access

  13. 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

  14. 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)

  15. Backup Information

  16. 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

  17. 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)

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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 

  26. 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)

  27. 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)

  28. ply _p_s - ply_piece_shape c_a_s - composite_assembly_shape p _o_a - ply_orientation_angle c_a_t - composite_assembly_table p _s_m - ply_stock_material c_a_s_d - composite_assembly_sequence_definition p _l_s - ply_laminate_shape z _s_m - zone_structural_makeup ply_l_t - ply_laminate_table %_l_t - percentage_laminate_table p_l_s_d - ply_laminate_sequence_definition t_l_t - thickness_laminate_table p_p_s - projected_ply_shape %_ply - percentage_ply l_p_s - laid_ply_shape z_s_m_s_r - f_p_p_s - flat_pattern_ply_shape zone_structural_makeup_shape_representation part_l_t - part_laminate_table e_z_s - edge_zone_shape c_sheet_r - composite_sheet_representation p_z_s - point_zone_shape c_s_s_s - cross_section_shape_selection d_m - defining_model b_sheet_r - beveled_sheet_representation b_c_z - boundary_curve_zones t_d_g_s - three_d_geometry_set 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

More Related