Copyright DASSAULT SYSTEMES Structure Design CATIA Training Foils Version 5 Release 8 February 2002 EDU-CAT-E-STD-FF-V5R8

Copyright DASSAULT SYSTEMES Structure Design Objectives of the course In this course you will learn methods to quickly create and modify linear and curved structures, and plates using standard or user-defined sections. It addresses any kind of Frames, Foundations and Steel construction …, in various domains like Aerospace, Automotive and F&A. Targeted audience New CATIA V5 users Prerequisites Course PDG, course WFS and course SKE 1 day

Copyright DASSAULT SYSTEMES Table of Contents (1/2) 1. Introduction to Structure Design Structure Design Demonstration Structure Design Workbench Presentation 2. Setting Options Setting Options for Structure Design Intent 3. Creating Grids Creating Grids in 3D 4. Defining & Placing Members Defining Members Placing Linear Members Placing Members on Support Placing Infilling Members 5. Creating Planar Elements Creating Plates Creating End Plates 6. Modifying Structures & Plates Editing Structures Editing Plates Jointing Structures Manipulating Structures

Copyright DASSAULT SYSTEMES Table of Contents (2/2) 7. Making Design Changes Modifying Structure Geometry

Copyright DASSAULT SYSTEMES Introduction to Structure Design You will become familiar with the Structure Design workbench Accessing the workbench Exploring the User Interface Seeing Terminology Understanding the General Process

Copyright DASSAULT SYSTEMES Accessing the Workbench Structure Design Workbench Icon The Structure Design Workbench is working at Product level, like Assembly Design. Once you are in the Structure Design Workbench, the associated toolbars are displayed : Design Elements Operations Products Selection

Copyright DASSAULT SYSTEMES Exploring the User Interface Grid Section Member Infill Members on Support Plate End-Plate Joint Translation and Rotation Manipulation Structure Design toolbar Assembly toolbar You are in the Structure Design Workbench Product tree Standard tools Part tree for Member Structure Design Features Part tree for Plate Structure Design Feature Tree scrollbar Filtered Selection toolbar Filtered Selection

Copyright DASSAULT SYSTEMES Seeing Terminology (1/2) TUBEC120x5.0_5 is the Part Number of the beam automatically given by the system, based on the Section type (TUBEC stand for tube carré) and used to store the profile on the Section Storage directory Column_4 is the Instance Name automatically given by the system, based on the Member type and used to store the part on the disk at the product level. StructuralRib is a Structure Design feature. It contains the sketch of the section profile and possibly cutbacks. StrSkeleton is a Structure Design feature. It contains the construction elements of the member. Assembly Features are used by the system to manage associativity between members.

Copyright DASSAULT SYSTEMES Seeing Terminology (2/2) Th=10_14 is the Part Number of the plate automatically given by the system based on the thickness value. Gusset_14 is the Instance Name automatically given by the system, based on the Plate type and used to store the part on the disk at the product level. This part is a standard CATPart automatically created using the Plate functionality. StrInfill is a Component automatically created by the system when using the Infill functionality. It contains the skeleton of the Infill and the Infilling beams. StrSkeletonInfill is a CATPart containing the infill skeleton : lines and points automatically created in the OpenBody of the part. Infilling Beams are same CATParts than those created with Member or Member on Support functionalities.

Copyright DASSAULT SYSTEMES General Process Create a Grid Place Members Create Planar elements Create Joints Modify your Design Define Settings Access workbench From Assembly Design : > Insert a New Product (Design in context of assembly) Or Open an new CATProduct document > To be inserted later on

Copyright DASSAULT SYSTEMES Setting Options You will see how to define needed settings in order to work within the Structure Design workbench. Setting Structure Design Options Setting Part Design Options Setting Assembly Design Options

Copyright DASSAULT SYSTEMES Setting Structure Design Options (1/4) Select Structure Design in Mechanical Design item. 1

Copyright DASSAULT SYSTEMES Setting Structure Design Options (2/4) 2 Modify if needed the Member and Plate color.

Copyright DASSAULT SYSTEMES Setting Structure Design Options (3/4) 3 Modify if needed the Member and Plate material. The material will be applied automatically when you place beams.

Copyright DASSAULT SYSTEMES Setting Structure Design Options (4/4) Optionally, you can add or remove a new Member type and/or a new Plate type. 4 5 Member and Plate types are useful to classified structural elements. Optionally, you can modify the Catalogs Storage directory path. This path is given by default by the system. 6 You must enter a path for the Sections Storage directory. When you choose sections in the catalog the system stores them as favorites in the Section Storage directory and therefore it gives you a quickest way to access these sections.

Copyright DASSAULT SYSTEMES Setting Part Design Options (1/2) Select Part Design in Mechanical Design item 1

Copyright DASSAULT SYSTEMES Setting Part Design Options (2/2) This option assumes that all modifications to other parts affect external references included in your parts. 2 Check that the Keep Link with … option in the External References frame is ticked. 4 Check that the Synchronize all … option in the Update frame is ticked. This option maintains the links between external references, copied elements and their origin. 3 Check that the Automatic option in the Update frame is ticked.

Copyright DASSAULT SYSTEMES Setting Assembly Design Options Select Assembly Design in Mechanical Design item 1 You can control whether or not CATIA automatically updates a product (i.e. an assembly) by selecting the Automatic or Manual option in the Update frame. 2 Skip options as it is

Copyright DASSAULT SYSTEMES Creating Grids You will see how to generate grids by assigning the basic parameters needed to create the grid. Creating Grids in 3D

Copyright DASSAULT SYSTEMES What about Grids ? Before starting to create any beams and plates you will need to define a grid. This grid makes the positioning of structures easier and lets you design in context. You can create structures referencing geometrical grid elements. Thus, design changes can be performed easily by modifying the grid and updating the structure in consequence. A grid is a CATPart comprising an Open_Body where are stored all the components (planes, intersections and lines) of this grid. If needed, you can modify, whenever you want, planes and lines of the grid; even if the grid includes beams. You can add planes, lines, curves and points on a grid.

Copyright DASSAULT SYSTEMES Creating Grids in 3D (1/3) This is the general process to create grids. 1 Select the Grid icon Enter a name for the grid 2 Grid This name is mandatory. Select the creation mode 3 In the absolute mode, grid planes are positioned with respect to the grid origin. Planes can be repositioned independently of one another. In the relative mode, grid planes are positioned with respect to each other. Moving a plane impacts other planes offset from that plane. This is the default mode. Grid

Copyright DASSAULT SYSTEMES Creating Grids in 3D (2/3) Enter absolute coordinates in the Origin frame or select a point in the 3D to define the grid origin. 4 5 Select the Cartesian tabpage and enter H and V values to define the local x-axis or, Select the Polar tabpage and enter an angle to define the polar axis or, Select a line in the 3D. If you select a point, the point is identified in the dialog box. The grid origin is now linked to this point. If you select a line, the line is identified in the dialog box. The first direction is now linked to this line. Selected point Selected line

Copyright DASSAULT SYSTEMES Creating Grids in 3D (3/3) 6 Specify the grid spacing 7 Select the More button if you want to create an uneven grid You can create a grid on XY plane by omitting to specify the spacing number and the spacing value for the Z axis. 8 9 Select the OK button to create the grid Specify the other sets of grid coordinates. You MUST specify the first set of coordinates at step 6.

Copyright DASSAULT SYSTEMES Defining & Placing Members You will see how to define an then place members on a grid or in the space by using the provided functionalities. Defining Members Placing Linear Members Placing Members on Support Placing Infills

Copyright DASSAULT SYSTEMES What About Members ? A Member is a CATPart define by its: Type (Column, Beam, H-Brace, V-Brace, by default), Section coming from a standard catalog, a user catalog or a resolved sections directory, Anchor Point: the point at which you anchor the section along the support axis, Orientation, Direction and its, Material. When you place a beam the system create: Structural Rib which contains the sketch of the section and later on cutbacks. StrSkeleton which contains the wireframe support. Published elements: Start cntr, End cntr, Support cntr which are the wireframe elements of the member support

Copyright DASSAULT SYSTEMES Defining & Placing Members … Before placing a member, you have to: Define sections to be used By creating a favorite list, or On the fly Define member type Define member section Define member anchor point Define member orientation Define member direction for: Linear member using points Line axis Planes Member on support Infill Member on Support

Copyright DASSAULT SYSTEMES Section Define Sections to be Used Creating a list of favorite sections. Select the Section icon. 1 2 Select a Family. 3 Select a section The Catalog Browser window is displayed Repeat steps 3 to add sections in your favorite list (see setting Structure Design Options).

Copyright DASSAULT SYSTEMES Define Member Type and Section (1/2) Select a member type. 1 2 Select an available section or, Select "Other section…" to access the catalogs. If you have added new member types in Tools+Options you should get them instead of the default ones. Right-click in first box and select Section properties from the contextual menu to view geometrical and mechanical properties of the selected section.

Copyright DASSAULT SYSTEMES Define Member Type and Section (2/2)

Copyright DASSAULT SYSTEMES Since the section selected is symmetrical, gravity anchor points coincide with standard anchor points: Standard and gravity anchor points for a channel shape section. Define Member Anchor Point (1/3) The Anchor Point defines the relative position of the member along the support axis. Select an anchor point in the list or in the preview section window. 3

Copyright DASSAULT SYSTEMES Defining Member Anchor Point (2/3) Understanding the anchor points manipulation (1/2) Standard symmetrical shape anchor points and their relative preview along X + axis.

Copyright DASSAULT SYSTEMES Defining Member Anchor Point (3/3) Understanding the anchor points manipulation (2/2) Bottom Left anchor point along X + axis. Bottom Left anchor point along Y + axis. Bottom Left anchor point along Z + axis.

Copyright DASSAULT SYSTEMES Defining Member Orientation 4 Select the Up or Down arrow or, Key-in an orientation. You can use the arrows to change the angular dimension value and orient the section around its anchor point: the Orientation field is updated in 90 degree increments by default. Right-click in this field to change the step. Bottom Left anchor point along X + axis. Bottom Left anchor point along Y + axis. Bottom Left anchor point along Z + axis. 20° + + +

Copyright DASSAULT SYSTEMES Placing Linear Member Using Points (1/3) 2 Key-in a length value, if needed. 1 Select "Unspecified" direction in the list. "Unspecified" means that you have to define the direction of the member by using points. At that stage, you can define a length value. 3 Select a Start Point. At that stage, you have several options: 1. Select an existing point or, 2. Select a structure extremity or, 3. Select an edge extremity or, 4. Key-in a point coordinates or, 5. Create a "Point on Member". 4 Select an End Point. You have the same options as to select a Start Point. Member

Copyright DASSAULT SYSTEMES Placing Linear Member Using Points (2/3) Selecting Start or End Points (1/2) 2. Select a structure extremity.1. Select an existing point.3. Select an edge extremity. 4. Key-in a Point Coordinates. Select this icon to hide or show Point Definition window. You can either enter values in the Point Definition window or in the Dialog area. Dialog area

Copyright DASSAULT SYSTEMES Placing Linear Member Using Points (3/3) Selecting Start or End Points (2/2): 5. Create a "Point on Member". 1 Select Point on member. 2 Select a structure extremity. 3 Key-in values or slide the handler. 4 Select OK button.

Copyright DASSAULT SYSTEMES Placing Linear Member Using Line Axes 2 Or Select "Parallel to an unspecified line". 1 Select "Parallel to the X axis" or, Select "Parallel to the Y axis" or, Select "Parallel to the Z axis". 3 Select a line in the geometry area. At that stage, you must select a line as a member direction 4 Select a Start Point. 5 Select an End Point. the line is identified in the dialog box

Copyright DASSAULT SYSTEMES Placing Linear Member Using Planes 1 Select "Parallel to the XY plane" or, Select "Parallel to the YZ plane" or, Select "Parallel to the XZ plane". 3 Select a plane in the geometry area. At that stage, you can define an offset. 4 Select a Start Point. 5 Select an End Point. 2 Or select "Parallel to an unspecified plane" or, select "On an unspecified plane". At that stage, you must select a plane as member direction. the plane is identified in the dialog box offset XY plane Start Point

Copyright DASSAULT SYSTEMES Placing Member on Support (1/3) Selecting a support 1 Select wireframe element as member support. Elements can be lines, curves, helix or sketches. Right-click in the geometry area to access the contextual menu allowing you to specify the number of previewed sections. Previewed sections Member on Support

Copyright DASSAULT SYSTEMES Placing Member on Support (2/3) Selecting a reference 2 To orient the section with respect to a reference curve or surface, click the Reference box and select the desired curve or surface. Specifying a surface as a reference lets you create twisted members.

Copyright DASSAULT SYSTEMES Placing Member on Support (3/3) Selecting limits 3 Select limits to trim the member. Limits can be planes, intersection elements or faces of existing structures. 4 Optionally, you can enter a value or use the arrows to change the value of offset 1 or offset 2. 5 Select the OK button to create the member.

Copyright DASSAULT SYSTEMES Placing Infill (1/4) Specifying number and support 2 Select the Support box to define a support plane and select a plane or a planar face. Select the Offset box to set an offset with respect to the selected support plane. 1 Select up or down arrows to increase or decrease the number of infilling members. Infill

Copyright DASSAULT SYSTEMES Placing Infill (2/4) Specifying position 3 Select Relative or Absolute mode to position the infilling members. Relative mode Absolute mode Orientation = 0° Absolute mode Orientation = 45° 45° Relative mode Orientation = 45° 45° Relative mode Orientation = 0° Absolute mode

Copyright DASSAULT SYSTEMES Placing Infill (3/4) Specifying infill spacing The point at which you select structures is important. The system determines the end nearest this point and computes infill spacing along the selected structure from this end. 3 Select a spacing mode for Reference 1, And for Reference 2. 4 Select the first member as Reference 1. 5 Select the first member as Reference 2. 6 Specify spacing on Reference 1 and Reference 2. 7 Select the OK button to create the infilling members.

Copyright DASSAULT SYSTEMES Placing Infill (4/4) Specifying spacing mode and spacing options (D1, D2, D3): In Defined mode, you must enter distances D1 and D2. Distance D3 is generally deduced by the system. Use the Same as 1 option when structures are not parallel to keep the same distances between infill and the ends of structures. D1 gives the value of the distance from the pointed extremity of the selected structure (Reference1) to the first infilling member. D2 gives the value of the distance between infilling members. D3 gives the value of the distance from the other extremity of the selected structure (Reference 1) to the last infilling member. Equal/Equal mode: D2 is deducted by the system Equal/Same as 1 mode: D2 is deducted by the system Define/Perpendicular to 1 mode: D3 is deducted by the system

Copyright DASSAULT SYSTEMES Creating Planar Elements You will see how to create planar elements by using the provided functionalities. Creating Plates Creating End Plates

Copyright DASSAULT SYSTEMES What About Planar Elements ? A Plate or an End Plate are CATParts.

Copyright DASSAULT SYSTEMES Creating Plates (1/3) Using existing edges (1/2) Select a Plate type. 1 2 Key-in a thickness. 3 Select a support. You can create your own type using Tools+Options menus. This will be the distance between the selected face of the support and one of the opposite face of the plate. The support can be a plane or the face of an existing structure (members and plates) or the face of a mechanical part. 4 Key-in an offset, if needed. Plate

Copyright DASSAULT SYSTEMES Select points, lines or edges to define the plate contour. To create the contour of a rectangular plate in 3 or 4 steps: 1. Select the first line or edge. 2. Select opposite line or edge. 3. Select Reverse Direction (if needed). 4. Select the OK button. Instead of selecting OK button you can also click on Apply button and select the Sketcher Icon in order to modify or add holes, for example, to the being created plate. Creating Plates (2/3) Using existing edges (2/2) Define the contour of your plate. 5 Select the OK button 6

Copyright DASSAULT SYSTEMES You can constrain your profile to existing structure members or plates Creating Plates (3/3) Using Sketcher Select the Sketcher icon. 5 Create the profile of your plate. 6 Exit the Sketcher workbench. 7 Select the Reverse Direction (if needed). 8 Select the OK button. 9

Copyright DASSAULT SYSTEMES Creating End Plates Use this functionality to create plate at member extremities Select an end plate type. 1 2 Key-in Length, Width and Thickness values. 3 Select a free member extremity The length and width are defined with respect to the local axis system of the structure, for example, in the case of an I shape, the width is defined along the x-axis parallel to the flange and the length along the y-axis parallel to the web. Width Length Local Y-axis Local X-axis 4 Select the OK button End Plate

Copyright DASSAULT SYSTEMES Modifying Structures and Plates You will see how to modify members and plates definition and how to manipulate them. Editing Structures Editing Plates Jointing Structures Manipulating Structures

Copyright DASSAULT SYSTEMES Editing Structures (1/5) This is the general process to modify structures. 1 Right-click a member in the tree or in the geometry area. select the type of modification you want to make from the contextual menu. 2 Define new parameters in the respective window. 3

Copyright DASSAULT SYSTEMES Editing Structures (2/5) Modifying definition Select Definition in the contextual menu. 1 2 Modify one or more parameters. The Member Definition window is displayed. 3 Select the OK button. You can modify : member type member section member anchor point member orientation

Copyright DASSAULT SYSTEMES Editing Structures (3/5) Extending members Select Extend in the contextual menu. 1 2 Modify one or more parameters. The Limits Definition window is displayed. 3 Select the OK button. The dialog box content changes according to the way you have place members.

Copyright DASSAULT SYSTEMES Editing Structures (4/5) Stretching members Select Stretch in the contextual menu. 1 2 Select the manipulator or key-in new point coordinates. 3 Select the OK button. This command is only available for unconstrained linear members, i.e. those created by entering coordinates or with the "Keep link with selected object" option de- activated.

Copyright DASSAULT SYSTEMES Editing Structures (5/5) Flipping members Select Flip in the contextual menu. 1

Copyright DASSAULT SYSTEMES Editing Plate (1/2) Modifying plate definition Select Definition in the contextual menu. 1 2 Modify one or more parameters. The Plate Definition window is displayed. 3 Select the OK button. You can modify : Plate type Plate thickness Plate Direction Plate profile

Copyright DASSAULT SYSTEMES Editing Plate (2/2) Modifying end plate definition Select Definition in the contextual menu. 1 2 Modify one or more parameters. The Plate Definition window is displayed. 3 Select the OK button. You can modify : End plate type End plate length End plate width End plate direction

Copyright DASSAULT SYSTEMES Jointing Structures (1/6) This is the general process to create joints on structures. 1 Select a type of cut. Key-in an offset, if needed. 2 Select the member to trim. 3 You can select a structure or a plate. Select the trimming member. 4 5 Select the OK button.

Copyright DASSAULT SYSTEMES Jointing Structures (2/6) According to your settings the member will be automatically updated. The system create specific features in the tree.

Copyright DASSAULT SYSTEMES Jointing Structures (3/6) Performing a Normal cut 1 Select Normal cut. Key-in an offset, if needed. 2 Select the member to trim. 3 You can select a structure or a plate. Select the trimming member. 4 5 Select the OK button.

Copyright DASSAULT SYSTEMES Jointing Structures (4/6) Performing a Weld cut 1 Select Weld cut. Key-in an offset, if needed. 2 Select the member to trim. 3 You can select a structure or a plate. Select the trimming member. 4 5 Select the OK button. Offset

Copyright DASSAULT SYSTEMES Jointing Structures (5/6) Performing a Miter cut 1 Select Miter cut. Key-in an offset, if needed. 2 Select the member to trim. 3 You can select a structure or a plate. Select the trimming member. 4 5 Select the OK button.

Copyright DASSAULT SYSTEMES Jointing Structures (6/6) Resetting a cut 1 Select None. Select the member to reset. 2 This option lets you remove a previously applied cut 5 Select the OK button. The "Split to delete" field is valuated automatically. Select the member extremity you want to reset. 3

Copyright DASSAULT SYSTEMES Manipulating Structures (1/3) Translating structures 1 Select the "Translation or Rotation" icon. Select the component you want to translate. 2 Key-in X, Y, Z offsets or, 3 You can select lines, points, planes or part edges as direction. Select the Selection button. 4 5 Select the Apply button. The Move window is displayed You can select grids, structures plates and any other mechanical part as well. Warning: if you intent to translate only one beam; this beam must be isolated first.

Copyright DASSAULT SYSTEMES Manipulating Structures (2/3) Rotating structures 1 Select the "Translation or Rotation" icon. Select the component you want to translate. 3 Select X, Y, Z axis or, 4 You can select lines or part edges as axes. Select the Selection button. 5 6 Select the Apply button. The Move window is displayed You can select grids, structures plates and any other mechanical part as well. Select the Rotation tabpage. 2

Copyright DASSAULT SYSTEMES Manipulating Structures (3/3) Manipulating structures 1 Select the "Manipulation" icon. Select the component you want to Manipulate. 3 Select an option, 4 Drag the component. 5 6 Select the OK or Cancel button. The Move window is displayed You can select grids, structures plates and any other mechanical part as well.

Copyright DASSAULT SYSTEMES Making Design Changes You will see how to use the associativity between the members and plates that have been created and the construction grid to adjust the length of your structure. Modifying Structure Geometry

Copyright DASSAULT SYSTEMES Modifying Structure Geometry (1/3) By modifying a plane type Double-click a plane. 1 2 Double-click again the plane. 3 Select a point. You will enter the Part Design workbench. 4 Select the OK button. The Plane Definition window is displayed. The dialog box contents changes according to your selection

Copyright DASSAULT SYSTEMES Modifying Structure Geometry (2/3) By modifying a plane offset Double-click a plane. 1 2 Double-click again the plane. 3 Change the Offset by: - selecting the handler or, - Key-in a new value. You will enter the Part Design workbench. 4 Select the OK button. The Plane Definition window is displayed.

Copyright DASSAULT SYSTEMES Modifying Structure Geometry (3/3) By modifying member point coordinates Double-click the extremity point. 1 2 Or, Double-click the DistanceOnBeam parameter. 3 Key-in a new value. By default the skeleton of the member is in NoShow. 4 The Edit Parameter window is displayed. Select the OK button.

Copyright DASSAULT SYSTEMES To Sum Up In this course you have seen : Grid creation Member definition and placement Planar elements creation Beams and plates modification Design changes