Challenge

Challenge 7 : Concept Modelling of Steering Wheel

AAshish Kumar Sah25 Feb 2022

Title Of The Project: Concept Modelling of Steering Wheel

Objectives: To build the Surfaces for Steering Wheel.

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 which other materials first interact. Surface provides a geometrical description of the article boundary with no topologies 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. Import the given image as canvas in one of the layouts as shown:

Since only one view of the steering wheel is used, we have to build the surfaces by visualization.

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

3. In order to build the model, I have divided it into three parts as shown in the figure:

i. Hornpad

ii. Panel Connector

iii. Steering Wheel

4. To start the modeling, first, the outer section of the steering wheel is made by tracing the curves and using the rail command as shown in the figure:

5. Now, the horn pad is made by tracing the blueprint as shown:

6. At last the panel connector is made as shown in the figure:

7. All these parts were created by using different commands and features. Some of them are listed below:

cv curve tool
align tool
blend
skin
rail
square
srfcon
project & intersect
surface fillet, etc.

Some of them are explained below:

Features Used:

To build the curve networks, cv Crv and blend commands are 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 applied 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.