Challenge 5 : Concept Modeling of Car Bumper

Title Of The Project: Concept Modelling Of Car Bumper

Objective: To build the surface for the front bumper of the car.

Introduction:

A surface, as the term is most generally used, is the outermost or uppermost layer of a physical object or space. It is the portion or region of the object that can first be perceived by an observer using the senses of sight and touch and is the portion with wich other materials first interact. Surface provides a geometrical description of the article boundary with none topoogies data.

Autodesk Alias (formerly known as Alias StudioTools) is a family of computer-aided industrial design (CAID) software predominantly used in automotive design and industrial design for generating class A surfaces using Bezier surface and non-uniform rational B-spline (NURBS) modeling method.

Design Approaches:

Description:

1. First of all, the given blueprint is cropped into individual views (Front and Side).

2. Prepare a dimension box as shown to fit these images in there resective places.

3. These images are placed into their respective layouts. For example, Side view of the image is kept in the side (either left or right) layout.

4. After importing these images, make layers and assign these images to a particular layer and make it as reference. Also, make layers as required.

5. Since, the front view of the car carries most of the imformation about the structure, the curves networks are build mainly focusing this section and for proper alignment side view is used as a reference. Finally, the curve netwoks of the part would look somethig as shown below:

6. Using these curve networks, surfaces are formed and the final result is as shown:

7. Fillets are applied and unwanted regions were trimmed out as shown in the figure:

8. Symmetry the part.

Features Used:

Surfaces are generated using Surface Tools surch as:

• skin: Creates a skin across multiple curves
• rail: Extrude profile freely or on path curves to make sweeping
• square: fill in the boundaries outline by connecting curves

After creating these surfaces, they are aligned and the continuity is applited to the adjacent surfaces. The surfaces are aligned using the Align tool and the continuity is checked using srfcon under evaluate tab.

In order to create some cut-outs on the surfaces as shown in the figure, first of all the curves are projected onto the surface and the unwanted surface is trimmed out using project tool and trim tool respectively.

In order to know the construction history, you can use the following tool:

To form Fillets between the surfaces, 'Surface Fillet Tool' is used.

Conclusion:

Hence, the front bumper of the car is build by using the given blueprint.