Fender Design - Wheel Arch Challenge
CREATION AND EXECUTION OF WHEEL ARCH ANALYSIS USING EUROPEAN STANDARD
OBJECTIVE:
The main objective is to create a wheel arch points in the given model and execute the comparison with European standard.
FENDER:
The part is located above the wheel in a automobile unit. Used to protect the engine compartment from dust and environemtal condition. Mostly the higher end automotive vehicles fenders are more in aesthetic look.
There are two types of front fenders:
1.Full bumper type
2.Half bumper type
Various standards are used to identify the Wheel arch calculation items. The follwing method is European standard.
While following European standard the main things are going to takes places are L value and H value.
L = value measured from tyre outer edge to fender edge (Top view of the vehicle)
H = value measured from tyre outer edge to fender edge (Side view of the vehicle)
PROEDURE:
1. Insert a given model into NX tool
2. create a plane at the outer edge of the wheel.
3. Now create a sketch as followed in European standard with proper angle and fix support
4. create a outer edge from the fender and make the points to measure values easily.
5. Now using the measure option from analyse tool and measure the different points.
SKETCH VIEW:
L = value measured from tyre outer edge to fender edge (Top view of the vehicle) are the following measured image.
SB VALUE:
SA VALUE:
SC VALUE:
SD VALUE:
SE VALUE:
H = value measured from tyre outer edge to fender edge (Side view of the vehicle) are the following images.
TABLE OF MEASUREMENT:
|
SECTIONS AS PER STANDARD |
CLEARANCE AS PER STANDARD (mm) |
CLEARANCE MEASURED FROM DESIGN (mm) |
RESULT |
|
SA |
10 |
10 |
PASS |
|
SB |
10 |
9.9489 |
PASS |
|
SC |
10 |
-0.113723 |
FAIL |
|
SD |
10 |
-2.8758 |
FAIL |
|
SE |
10 |
-5.9755 |
FAIL |
CONCLUSION:
From above mentioned table results, we can conclude that the Fender does not pass the European Regulations. As the minimum clearance (L) between the Fender Wheel Arch and vehicle and pedestrian safety is 10mm and this design does not meet the requirement. Hence this structure will not accept the standard we need to improve the Fender Skin design to fullfill the requirement.