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

                     WIRING HARNESS DESIGN IN CATIA V5 - 3D MODELING WEEK 5 & 6 CHALLENGE

Aim: 

     To Route two electrical harnesses as per the given layout and interconnect them as a single harness assembly and then check for bundle continuity, bundle warnings, and then give annotations to the final harness assembly.

OBJECTIVE:

      objective of this project is to first route the two Harness A and Harness B as per the given harness layout.

Step 1: We have to first define all the connectors geometrically and electrically as shown in below images.

Step 2:

Now, we have to create Harness A and Harness B by using electrical harness assembly as shown in below image.

First, we will locate all the connectors at their desired position, add branch points required and create bundle segment according to the diameters assumed as 10mm and 5mm.

Harness A: 

 

Harness B: 

 

Harness A Routing

Step 3:

• Now in this step, we have to check bundle continuity in both Harness A and Harness B.
• So for that, go in Edit>Search>Workbench-Electrical>Type-Bundle segment>Attribute-fully connected.
• We will get one window, in that selecting True option will show all the connected bundle segments while selecting False option will show all the non-connected bundle segments.
• Now, we will check for True condition and search for result.
• All the bundle segments are showing connected. So there is bundle continuity in both Harness A & Harness B as shown in below images.

Harness A: 

 

Harness B: 

 

Step 4: 

• In this step, we must interconnect both Harness A & Harness B. 
• For that, we must create a new product file and can give the name as Assembly. 
• Then, copy both harnesses and paste it in newly created product file or call both harnesses in mechanical assembly design as below image. 
• We must go in Electrical Assembly Design to connect both the harnesses electrically. So, for that, select the option 'connect electrical devices' and both the harnesses will get connected electrically as below. 

Step 5: 

• In this step, we will be checking the bundle warning in Harness A & B. 
• Geometrical bundle warnings are shown for bend radius, bundle diameter and vector position. 
• So, if there is any incorrect value or input regarding these factors then yellow colored flash will be appear in the model tree structure next to the branchable with problems. 

 

• This error can be corrected by adjusting the location of the connector. 

 

Step 6: 

• In this step, we must add annotations for all the connectors in mechanical assembly design workbench. 
• Annotations are used for giving connector names, functions etc. 
• For this, we must select a plane where annotation will be placed. In the image below, we have selected the front plane. 
• So, after giving annotations to all connectors, the whole assembly will look as below. 

Step 7: 

• Now, in this step we must convert the final harness assembly file into IGS format. So, for that we need to follow the steps below. 
• Mechanical Assembly Design workbench>Tools>Generate CAT Part from product. 
• Once the CAT part is created, the whole product file is converted into a single part. 
• Now, the whole file is converted into the IGS format, and we can see all the harness assembly is looking in grey color. 
• If we need to change color as before in green, we can go back and give green color to each bundle segment. 

 CONCULSION:

     So in this way, we have done with the harness routing and interconnection of both the harness A&B according to given layout. Both the harnesses are checked and corrected for bundle continuity, bundle warnings, annotations are added for all the connectors and at the end whole CAT part file is converted into the IGS format.