Challenge

Wiring harness design in CATIA V5 - 3D modeling Week 5 & 6 Challenge

Q1. Route the following harness layout in Electrical workbench. Make assumption for harness bundle diameters. Use the connectors provided. After completion of routing,

STEP 1:

Create geometric and electrical definitions for all electrical connectors that will be used in the wiring harness.

Connectors Used in Harness A & B

STEP 2:

Using the electrical harness workbench in CATIA V5, create harness A and harness B as shown below.

First, all of the connectors are placed in their proper positions. Second, bundle segments with branch points and branches are created between the connectors, as shown below.

STEP 3:

Following the creation of Harness A and Harness B, the bundle continuity must be checked.

To begin, ensure that multi-branchable is selected, then navigate to Edit>Search>Advanced>Electrical Workbench>Type-Bundle Segment>Attribute-Fully Connected.

Selecting "TRUE" will display all connected bundle segments, while selecting "FALSE" will display all non-connected bundle segments.

STEP 4:

In this step, we must electrically connect Wiring Harness A and Harness B. A few steps must be taken in order to electrically connect the two harnesses.

To begin, create a new product file in CATIA and rename it "Assy Wire Harness."

Second, insert harness A and harness B into the newly created product file to create the final harness assembly. Once inside the electrical assembly design workbench, connect the male and female connectors as shown below.

STEP 5:

In this step, we'll look for bundle warnings in Harness A and B.

Geometrical bundle warnings for Bend radius, Bundle diameter, and Vector position are displayed. If these values or inputs are incorrect, a yellow flash will appear in the tree structure next to the problematic branchable. Depending on the route of the bundle segment, we can fix the problem by adding slack or changing the vector position of the segment point. In our case, there is no Error.

STEP 6:

In this step, we will annotate all of the electrical connectors.

Annotations are used to display connector functions as well as extra information. They are defined in CATIA V5's Assembly Design Workbench.

STEP 7:

The final step is to convert our Final Harness Assembly file into IGS format. To accomplish this, we must follow the steps outlined below.

Mechanical Assembly Workbench>Tools>Catalog Part Generation from Product

After creating the CAT part, the entire product file is converted into a single part. At this point, it is clear that all of the bundle segments are grey in color. So, we'll go back and add green color to each bundle segment to match the Final Harness Assembly.

Finally, as shown below, we can use the "SAVE AS" feature to save the CAT part file as an IGS file.

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