Fender Design - Wheel Arch Challenge
Wheel Arch Area:
- The Wheel Arch area of the Fender is usually designed for the purpose of protecting the BIW from stones and other objects on the road as well as the Pedestrians.
- To check the clearance between the Fender and the Wheel, there are certain standards all over the world, They are
- American Standard
- European Standard
- Japanese Standard
In this Challenge, we are going to check the Wheel arch clearance based on the Europen Standards.
The Standards commonly used are,
- The Standard that we are using here is European Standard,
- The main objective of this Standard is that the outer edge of the fender and wheel should have a clearance between them, For Europeans, the Clearance should be greater than 10mm.
Procedure:
- Create the datum plane on the outer edge of the wheel.
- Create the centre axis.
- Create the sections SB,SA,SC,SD,SE.
- Create the section SB by creating an inclined line of 30° to the centre axis i.e SA
- Create Section SC by creating an inclined line of 50° to the centre axis.
- Section SE is created by placing the line on the fender at a distance of 150mm.
- Section SD is created by placing on the centre between the SC and SE.
US REGULATION STANDARD:
The value will be more than 5mm at line 30deg forward and 50 deg backward from the central vertical axis.

Objectives of the wheel arc challenge:
Its main objective is to calculate the area of the wheel arc and check whether the given fender of car will pass the European standards or not.

|
Section |
Measured L (mm) |
Required L (mm) |
Comments |
|
SA |
10 |
10 |
PASS |
|
SB |
9.5 |
10 |
PASS |
|
SC |
-0.113 |
10 |
FAIL |
|
SD |
-3.884 |
10 |
FAIL |
|
SE |
-6.2 |
10 |
FAIL |
Conclusion:
The negative sign indicates that the wheel lies behind the fender and does not pass the European standard. To pass that there should be a change in the styling team