Fender Design - Wheel Arch Challenge

Aim:

To Calculate the Wheel Arch gap at required points and check whether the car passes the European standard.

Fender Wheel Arch:

• Fender Wheel Arch is the semi -circular part positioned above the wheel of the vehicle.
• The most important body was a change that the front wheel arch was cut higher into the fender.
• The car was large in size, high-definition headlights that extend to the wheel arch.

Fender Safety:

• The fender is a part of the car, it is also used as a protecting the side of the engine compartment.
• Pedestrian safety is also considered while designing a wheel arch in a fender since the debris in the wheel shouldn't hit them in the motion of the car.
• Fender is also reduced pedestrian injury when there is a pedestrian-vehicle crash and prevent the throwing up of debris nearby vehicles.

Types of the fender:

There are two types of the fender. they are:

1. Full Bumper.
2. Half Bumper.

Full Bumper of the fender:

The full bumper is mostly cover the wheel part almost 18% as shown in the below.

Half Bumper of the fender:

Half Bumper helps reduce the weight of the fender at the same time it proves the safety of pedestrian moving motion as shown in the figure.

Fender design considerations:

1. Drip Area.
2. Wheel Arch.
3. Baffle and ORVM mount area.
4. Frontal crash regulation and requirements.

Standards for Designing Front Fender:

European standard for wheel arch: According to European standard clearance length for the wheel arch will be 10mm. SA, SB, SC, SD, SE are the point on the wheel from where it is projected to the wheel arch to measure the distance.

Sketch for Measurement:

Measuring the distance from the wheel arch to the wheel tyre:

Next, we will note down clearance values.

1.Clearance for SA = 9.9490mm.

2.Clearance for SB = 10 mm.

3. Clearance for SC = 0.1139mm.

4. Clearance for SD = 2.8875mm.

5. Clearance for SE = 5.9973mm.

Observation tabular form mentioned below:

Position	Required Clearance Value (mm)	Observed Clearance Value (mm)	Remarks
SA	10	9.9490	Failed
SB	10	10	Passed
SC	10	0.1139	Failed
SD	10	2.8875	Failed
SE	10	5.9973	Failed

Conclusion:

The value of Clearance (L) is measured at all five location and tabulated. The table shows that only a section SB have 10 mm clearance and at remaining four section value will not have more than 10mm with the help of measure data, the given fender does not qualify the European standard for wheel arc area