Wiring harness design in CATIA V5 - 3D modeling Week 7 Challenge
WIRING HARNESS DESIGN WEEK 7 CHALLENGE
Aim
Flatten the harness assembly completed in “ week 4 challenge”. Place the flattened view on drawing sheet. Ensure bundles with protective coverings
has different visuals on drawing view.
DEFINE ALL PARTS ELECTRICALLY AND CREATE A BUNDLE WITH HELP OF WIRING HARNESS ASSEMBLY AS SHOWN BELOW
BUNDLE CONNECTION POINT
ELECTRIC PART DESIGN
Define the part as connector in catia, give no. of termination as 8 because we have 8 entry points for wire.
Define Bundle connection point
Define connector connection point
So like wise we need to define all the connector as electricaly.
Now Create the Electric wire harness context assembly and Geometric bundle as a subassembly containing all the electric parameters as shown below,
Add the all connectors which are electricaly defined to the Geomteric bundle assembly.
Then define this Geomteric bundle assembly as electricaly, for that we need to switch to Electric harness assembly workbench.
select Geometric Bundle then click on Geomteric bundle assembly (In specification Tree)
Now, to position all the connector as given in input file,
Create enviroment on which the bundle assembly will be placed.
ELECTRICAL HARNESS ASSEMBLY WORKBENCH
select multi branchable documents
Now to route the harness, after selecting multi branchable documents workbech changed to wire harness installation.
Click on Branch defination
To create protective covering on all branches
switch to electrical harness assembly
select protective covering then select branch - select catalog - select approprite slit cot tubes - give extrimity at start and end - ok
The following steps are to be done to complete this project.
STEP1
Defining Harness Flattening parameters
First, we should make a new product file inside the Electrical Harness Flattening workbench. Second, we should define the harness flattening
parameters by clicking on its icon as shown above. In the general tab, we should select the settings as shown above. After the general tab settings
are complete we should define the settings for the drawing tab as shown below.
It should be noticed that the type of representation for the bundle segment and protective covering are different from each other. Also for devices,
"3D projection" can be used if the connectors are added to the electrical drawing catalog.
STEP 2
Rename the product file as the Flattening Product.
STEP 3-
Bring the harness assembly into the newly created Flattening Product by using the "Extract" feature.
First, we should align the Flattening Product and Harness Bundle tabs vertically. Now, as shown below, we should use the "EXTRACT" feature in the
electrical harness flattening workbench to bring the harness assembly into the Flattening product.
It should be noted that our geometrical bundle assembly or harness assembly file is now changed to an "EHF" file which stands for "Electrical
Harness Flattening".
STEP4
Flattening of the harness
To flatten the harness we should select the flatten plane and then select all the branches present in the harness assembly as shown below.
STEP 5
MANIPULATION OF FLATTENED PART
DRAWING OF FLATTENING
The following changes should be done to drawing and then import the front view from product file and then the required diagram is obtained in
drawing sheet.The following are the drawing sheets obtained from the front view of product file.
CONCLUSION
Required model is obtained using harness flattening workbench in catia v5.