WS8.1-1 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop 8.1 Line and Surface Bodies DesignModeler

WS8.1-2 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Workshop 8.1, Line and Surface Bodies Goals: – Create a sketch representing beams used to stiffen a panel. – Create a line body from the sketch. – Choose a beam cross section to be used and assign it to the line body. – Create a surface model representing the panel.

WS8.1-3 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Workshop 8.1, Line and Surface Bodies Project Page>Component Systems>Geometry

WS8.1-4 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Workshop 8.1, Line and Surface Bodies Project Page>Component Systems>Geometry a b RMB DM will Open. When prompted choose “mm” as the length unit

WS8.1-5 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Create a rectangle in the XY Plane [Sketch] > Rectangle 1.Place the cursor near the origin until ‘P’ appears, click then drag to define the rectangle Click “>Look At” & “>Zoom to Fit” tool buttons, and Triad ISO Ball as desired. Workshop 8.1, Line and Surface Bodies 1

WS8.1-6 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Dimension the rectangle 600X300 mm as shown [Sketch] > Dimension > General Horizontal = 600 mm Vertical = 300 mm Fit the sketch and move dimensions as necessary [Sketch] > Dimension > Move Workshop 8.1, Line and Surface Bodies

WS8.1-7 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Add 2 vertical lines and dimension as shown [Sketch] > Draw > Line 2.Place the cursor near the top line until the ‘C’ coincidence constraint appears. Move the cursor to the bottom line until the ‘C’ appears and a ‘V’ indicating a vertical constraint. 3.Repeat for second line Apply horizontal dimensions as shown. [Sketch] > Dimension > Horizontal Adjust Details so all dimensions are as indicated Workshop 8.1, Line and Surface Bodies 1 2

WS8.1-8 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Create a Line Body from Sketch1 [Main Menu] > Concept > Lines From Sketches 4.Select “Sketch1” from the Tree (click the “+” near the XYPlane to expand that branch if necessary) and “>Details>Apply” it as the base object 5.Click >Generate Workshop 8.1, Line and Surface Bodies

WS8.1-9 ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Select a rectangular tube type cross section: [Main Menu] > Concept > Cross Section > Rectangular Tube After selection, the cross section is displayed with its dimensions. In this case we will use the default dimensions. If desired the cross section Details can be changed to modify the cross section. Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement With a cross section selected we now need to associate it with our line body. 6.Highlight the line body in the tree and the details shows that no cross section is yet associated with it. [tree] > 1 Part, 1 Body > Line Body (at bottom of tree) 7.Click in the “Cross Section” field 8.Choose “RecTube1” from the drop down list Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement 9.After assigning the cross section to the line body the default display shows the line body with its cross section alignment (see right). We can also display the beam with the cross section displayed as a solid. [Main Menu] > View > Show Cross Sections Solids Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement The next step is to create the surfaces between the beams. These surfaces will be shell meshed in the MECHANICAL. 10.[Main Menu] > Concept > Surfaces From Edges Hold the control key and select the 4 lines shown at right. (or can hold down LMB and sweep mouse over lines to be group selected) 11.>Apply Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement 12.“>Generate” the Surface Body. Note: a frozen surface body is created, bounded by the selected lines Repeat the previous steps to create two more surface bodies “>Generate” as necessary 12 Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement The final modeling operation is to place all the bodies into a single part (multi-body part). We must do this to insure that, when meshed, each boundary “recognizes” its neighbor resulting in a continuous mesh. Set the Selection Filter to “Bodies”. In the graphics window right mouse click and choose “>Select All” Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement With all bodies selected, again right click in the graphics window and choose “Form New Part”. By examining the Tree notice a single part has been formed which contains 4 bodies. Workshop 8.1, Line and Surface Bodies

WS ANSYS, Inc. Proprietary © 2009 ANSYS, Inc. All rights reserved. April 28, 2009 Inventory # Workshop Supplement Shown here we have moved to a MECHANICAL environment in Workbench and meshed the geometry. – By grouping all bodies into a common (single) part, nodal connectivity is insured. Workshop 8.1, Line and Surface Bodies