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Saturday, April 27, 2013

Applying Frictionless Constraint in Autodesk Simulation Mechanical


The frictionless constraint is used to resist the deformation of the selected surface in its normal direction due to the force applied on the model. You can select planar and cylindrical surfaces of a model to apply frictionless constraint by using the Frictionless tool of the Autodesk Simulation Mechanical.

To apply frictionless constraint to a surface of the model, select a surface and then choose the Frictionless tool from the expanded Constraints panel of the Setup tab in the Ribbon of the Autodesk Simulation Mechanical; the Creating Frictionless Constraint Object dialog box will be displayed, refer to figure given below. In the Description exit box of this dialog box, you can enter a comment or description about the frictionless constraint being applied. Next, choose the OK button; the frictionless constraint will be applied to the selected surface.

Creating Frictionless Constraint Object

Below Figure A shows the model with frictionless constraint is applied at the bottom planar surface of a structure member in FEA editor environment of Autodesk Simulation Mechanical and Figure B shows the same model in the Result environment of Autodesk Simulation Mechanical after performing the analysis. Note that as the frictionless constraint is applied, the selected surface will not be allowed to deform in its normal direction, refer to Figure B.
Figure - A

Figure - B




Creating mechanism in CATIA V5

Friday, April 26, 2013

Extruding a Sketch in SolidWorks

Adding Parts to a Spec Sheet from a catalog in AutoCAD Plant 3D



You can add parts from a catalog to a newly created spec or an existing spec. For example, to add a pipe of size ranging from 3” to 10”, select the Pipe option from the Part category drop-down list of the Common Filters area in the Catalog Browser in AutoCAD Plant 3D, refer to the below figure.


Next, you need to set the size range of the pipe to be added by using the From and To drop-down lists of the Size range group that will be displayed on choosing the Pipe option from the Part category drop-down list; pipes under the specified range will be displayed in the table. Select the different pipe size from the table and enter the property values (Material, Material Code and Schedule) in the options available in the Property overrides area, refer to below figure. Next, select the Apply property overrides to parts added to spec check box and choose the Add to Spec button; the pipe group will be added to the spec sheet. Similarly, you can add fittings that you want to use when routing a pipe. Also, you can add multiple parts by loading multiple catalogs using the Catalog drop-down list.




Creating Smooth Curve Between Two Existing Sketched Entities in Autodesk Inventor



In Autodesk Inventor, you can create a smooth (G2) continuous curve between two existing curves. The existing curves can be arcs, lines, splines, or projected curves. To create a smooth curve, choose the Bridge Curve tool from the Draw panel of the Sketch tab in the Ribbon of Autodesk Inventor, you will be prompted to select the curves one after the other. Select both the curves; a smooth G2 continuous curve, known as bridge curve, will be created between the selected curves. The profile of the bridge curve depends on the position of the points selected. Below figure shows points of the curves selected for creating smooth curve between them and the resulting curve created.