Wiring harness design in CATIA V5 - 3D modeling Week 7 Challenge
WIRE HARNESS FLATTENING
Define a Connector
1. Open or Create the Connector Part
1. Create the Geometry:
o Use the Part Design or Generative Shape Design workbench to create the connector's 3D geometry.
2. Import an Existing Connector Model:
o If the connector is pre-designed, import the CAD file into CATIA.
2. Switch to the Electrical Part Design Workbench
- Go to Start > Equipment & Systems > Electrical Part Design.
3. Define the Connector
1. Access the Define Connector Tool:
o In the toolbar, select Define Connector.
2. Assign Basic Properties:
o Click the connector geometry to define it as an electrical connector.
o Enter a name and description for identification.
4. Define Connection Points
1. Add Connector Connection Points:
o Select Define Connector Connection Point from the toolbar.
o Click on the face or surface of the pin or interface where the connector will mate.
o Specify:
§ Direction: Set the orientation of the connection point.
§ Type: Define the connection type (e.g., male, female).
2. Define Bundle Connection Points:
o Select Define Bundle Connection Point.
o Click on the surface or edge where the wiring bundle enters the connector.
o Set parameters such as:
§ Diameter: Define the maximum allowable bundle diameter.
§ Direction: Ensure it aligns with the intended wire routing.
5. Validate the Definition
1. Check All Defined Points:
o Ensure all connection points are correctly placed and oriented.
2. Save the Defined Connector:
o Save the part with all electrical definitions.
CREATE A BUNDLE :
1. Prepare Your Assembly
1. Insert Components:
o Use the Electrical Harness Assembly workbench to add components like connectors, clamps, and supports into your assembly.
2. Ensure Definitions:
o Components like connectors should already have their bundle connection points defined in the Electrical Part Design workbench.
2. Switch to the Electrical Harness Installation Workbench
- Go to Start > Equipment & Systems > Electrical Harness Installation.
3. Create a Bundle Segment
1. Open the Bundle Segment Tool:
o Click the Bundle Segment tool in the toolbar.
2. Define Bundle Points:
o Click on the bundle connection points of the connectors or supports to define the routing path of the bundle.
3. Set Bundle Parameters:
o In the dialog box, specify:
§ Diameter: Define the diameter of the bundle.
§ Bend Radius: Ensure the radius meets design constraints to avoid sharp bends.
§ Material: Select the insulation material for the bundle.
4. Draw the Path:
o Use geometry (lines, curves, or edges) or manually define points to create the bundle's routing.
4. Add Branch Points
1. Insert Branch Points:
o Use the Branch Point tool to split or merge bundle segments at specific locations.
o Define additional bundle paths originating from the branch point.
2. Route Additional Segments:
o Create new bundle segments from the branch point to connect other components.
5. Validate the Bundle
1. Analyze Continuity:
o Use the Connectivity Analysis tool to ensure all components are properly connected by the bundle.
2. Check Bend Radius:
o Verify that the bundle adheres to the specified minimum bend radius.
3. Inspect Geometry:
o Ensure the bundle does not interfere with other components in the assembly.
6. Save the Assembly
- Save the harness assembly and associated bundle data for future use or modifications.
Flattening design
1. Prepare the 3d harness
1. Create the harness assembly:
o Ensure the 3d harness is fully defined, including bundle segments, connectors, and branch points, in the electrical harness assembly workbench.
2. Validate the harness:
o Perform a connectivity check to ensure all components are properly connected.
3. Save the harness:
o Save the 3d harness assembly to a location accessible for flattening.
2. Switch to the electrical harness flattening workbench
- Go to start > equipment & systems > electrical harness flattening.
3. Create a flattening product
1. Insert a new product:
o Create a new product specifically for the flattening design.
2. Create a flattening file:
o Click harness flattening and name the flattening file.
o The file will be linked to the 3d harness.
4. Import the 3d harness
1. Import harness components:
o Use the extract tool to import the 3d harness components into the flattening environment.
2. Position the harness:
o Place the harness in the 2d plane using the default positioning or a custom orientation.
5. Flatten the harness
1. Use the flatten tool:
o Click the flatten tool to convert the 3d harness into a 2d representation.
o Specify parameters:
§ Support plane: select the plane on which the harness will be flattened.
§ Stretch: allow or restrict stretching of the bundles.
2. Orient components:
o Use the rotate or move tools to adjust the orientation of connectors, clamps, and other components for clarity.
6. Optimize the flattening layout
1. Straighten bundle segments:
o Use the straighten tool to clean up bundle routing and improve visual clarity.
2. Adjust lengths:
o Ensure bundle lengths match the original 3d harness.
3. Add branch points:
o If required, define or adjust branch points for proper layout.
7. Annotate and document
1. Add labels:
o Use the text tool to label connectors, bundle segments, and components.
2. Add dimensions:
o Use the dimensioning tool to specify lengths, diameters, and clearances.
3. Generate a drawing:
o Export the flattening design to the drafting workbench to create a 2d drawing for documentation.
8. Save the flattening design
- Save the flattening design and link it back to the 3d harness for updates.
