CATIA V5 GENERATIVE SHAPE DESIGN TUTORIAL PDF

The various menus and menu commands that are specific to Generative Shape Design are described below. Note that most of the edit commands available here are common facilities offered with the Infrastructure. The specific Generative Shape Design edit commands depend on the type of object being edited: Geometrical Set, Ordered Geometrical Set or other entity. Creating Extruded Surfaces Revolve Creating Revolution Surfaces Sphere Creating Spherical Surfaces Cylinder

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To browse Academia. Skip to main content. By using our site, you agree to our collection of information through the use of cookies. To learn more, view our Privacy Policy. Log In Sign Up. Generative Shape Design. You will later learn about managing features and Geometrical sets. You have also learnt about Shape design Common tools. PartBody basically contains the If you create Reference Elements ; points, features used to create a solid.

Geometrical Sets contain the features used to create surface and wireframe elements. The elements in this body are created in a linear manner. Shape Design tools Apply Dress-up the part. Select the feature from which Select the Historical Graph icon. Click on plus to expand 4a the tree. In V5, during the creation and trimming of surfaces, the history of parent surfaces is kept in its entirety in order to allow for automatic update of downstream geometry following a modification of any parent surface.

Due to this fact, the specification tree can get large and often confusing. The tools listed below help manage this tree. New Geometrical Set : Creates a new Geometrical Set branch in the specification tree with the option of putting nodes from existing Geometrical Sets into it.

Allows for multiple groups containing related elements Duplicating a Geometrical Set : One of the modes of this tool duplicates the Geometrical Set in its entirety. This allows the user to edit nodes in the copied Geometrical Set without affecting the original Geometrical Set. Changing the Father node of a Geometrical Set : Allows the user to change the position of a Geometrical Set in the specification tree. Group : Hides all the nodes of a Geometrical Set except for specific nodes the user chooses to see.

Ordered Geometrical Sets are containers like Geometrical Sets but they have additional behaviours and allow feature creation using Linear Methodology.

Ordered Geometrical Sets allow the user to visualize the model progressing after each feature operation. This results in better visualization management. By Reordering elements in Ordered Geometrical Sets, you can achieve different results based on Linearity. In ordered Geometrical sets Graphical properties are inherited from parent elements.

The new Geometrical Set is added to the specification tree. Specify the node under which 2 the new Geometrical Set will be inserted. If Geometrical Set. Here is how that works: Create a Geometrical Set structure. Consider this step similar to creating a folder structure. Make sure you rename the Geometrical Set in a meaningful way. No Geometrical set Ordered Geometrical set 01 Elements in this set can be shuffled Elements in this set maintain the linearity with respect irrespective of their sequence of creation to their order of creation 02 Consists of only wireframes and surfaces Consists of wireframes, surfaces and solid bodies 03 The parent element in this set is not absorbed The parent in this set is absorbed after performing an after any operation.

Also GSO sometimes. Hybrid bodies are recommended when the Non Hybrid bodies are recommended when the model modeling requires surfacic parents or volumes can be built using only solids OR only surfaces. CATPart 1. Create new Geometrical Sets to form a logical feature organizational structure. Relocate features into the appropriate Geometric set. For clarity, you will be relocating features according to the name the feature has been provided.

CatPart Create Basic surfaces using the given wireframe. This signifies curves. Modify the wireframe to achieve a good quality surface Point. You can activate the Isoparametric curves to visualize the changes. Wireframe with guide curves Wireframe modified to achieve converging at same point. A smooth edge is created on the surface forming two faces which would affect the aesthetics of the bottle. This is achieved by specifying the Deviation parameter.

Profile Xmm Orientation of Create fill. Use Plane. Use Implicit Law to define the radius. R4 R12 Near. Select all 4 points manually as specified. To overcome this, you will have to use the advance options of Bitangent fillet to achieve a good quality surface. Create a smoother Spine Create Intersection. Using Spline as input curve, create an Extrude Extrude. Create a sketch output for one of the arcs This arc will coincided with Intersection.

You will also perform an exercise at the end of the lesson in which you will practice these tools. You will learn the following tools in this lesson: Extremum points Curve Connects Along with this you will also learn a few Recommendations and Tips to achieve better quality wireframes. Within HD2 you will discover new functionalities that are not in MD2 and also advanced capabilities in some functions that exist in both workbenches. In order to help CATIA find the maximum or minimum point of a curve or surface along any direction chosen by the user.

The element might be a sketch, a 3D curve or line, a surface or a solid face. Connect Curves created Curve 1. Curve 2. Curve 3. In the Generative Shape Design workbench under HD2 configuration , you can create a Connect Curve that connects two points or two curves by keeping nearly the same shape as a reference curve: the Base Curve. Curve 1. Curve 1 connect curve created with the CurveA base curve.

Curve 2 connect curve created with the CurveA. CurveC CurveB base curve. Set of Base Curves. Curve 3 connect curve CurveB created with the CurveC base curve. You will be creating a fine wireframe from a given set of curves using connect curves.

You will also create a extremums on these curves and use them to determine the maximum distance of the door from the absolute axis system.

CATPart Identify the broken curves in the given curve mesh and create a connecting curve using connect curve.

Broken areas on the curves Select the parameters as shown in the image. Distance between ZX plane and Extremum points Select the input parameters as shown in the panel.

ZX plane Repeat this for all the curves You can determine the maximum distance of the Extremums on the curve door from absolute axis by measuring highest extremum point. Along with understanding what is wireframe analysis, you will also see the recommendations for performing the wireframe. If a curve has an inflection, the surface will have an inflection.

If a curve has a tangency discontinuity, the surface will have a tangency discontinuity. If a curve has a curvature discontinuity, the surface will have a curvature discontinuity.

If a curve has a geometric flaw, the surface will have a geometric flaw. You probably get the idea…….. Surface with tangent discontinuity Curve with tangent discontinuity Many times the issue with the curve cannot be seen by the naked eye.

For wireframe based surface modeling, it is necessary to use curves that are continuous in tangency and in curvature.

This curve is discontinuous in tangency. G0 analysis G2 analysis The G0 discontinuities are displayed on the analyzed The G2 discontinuities are displayed on the analyzed curve.

This option allows the user to give thresholds below which the discontinuity is not detected. Click OK to confirm.

Sometimes when you want to create a sweep for instance, CATIA warns you that the profile curve is not continuous in tangency and that it could not build the geometry as you wish.

The Smoothing Curve function allows you to clean these curves from distance,Curvature and tangency discontinuity. We want to create a Line-type sweep from this curve using the plane as reference surface. We need to smooth the curve before generating the sweep as sweep operation is giving an error as shown above.

As a general rule, the larger the flaw, the larger the Maximum deviation value. Validate the discontinuity for all the curves Repair the curve using Curve Smooth. A swept surface is one that is created by sweeping a particular type of profile through space to form a surface. Each swept surface will follow along one or more guide curves. Scenario: Create an Explicit Sweep.

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CATIA Generative Shape Design

It includes high-level features with full specification capture and reuse. It provides an extensive set of tools for creating and modifying mechanical surfaces used in the design of complex shapes or hybrid parts. Its feature-based approach offers a productive and intuitive design environment to capture and reuse design methodologies and specifications. These include wireframe elements: point, line, angle, plane, curves, circle, bi-tangent, tri-tangent, through and trimmed , spline, parallel curves, corner on plane, connect 3D, spiral sphere, intersection and projection. Standard and advanced surface features include extrude, revolute, sweep, including segment and circle , offset including skin and fill. Both standard and advanced combinations of elements use associative transformation, including symmetry, scaling, translation, affinity, extrapolation and fillet.

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