Fender Design - Wheel Arch Challenge

WHEEL ARCH CALCULATION:

• Fender is the part of an automobile , motorcycle or another vehicle body that frames a wheel well(the fender underside)
• Its primary purpose is to prvent sand ,mud ,rocks,liquids and other roads spray from being thrown into the air by the rotating tyre.
• Fenders are typically rigid and can be damaged by contact with the road surface.

Fender are mainly are of two types

• Full bumper type.
• Half bumper type. 1.FULL BUMPER TYPE :
• It covers more area and consumes material compared to half bumper.
• Scrap material is more compared to the half bumper.

2.HALF BUMPER TYPE:

• It covers less area and consumes less material
• A single sheet can be used to produce more than one bumper.

Fender wheel arch area

• The wheel arch is the semicircular part positioned above the wheel of a vehicle.
• The main factors to be considered while designing the wheel arch area .
• The wheel should be placed inside the fender or in other words , there should be a minimum distance between the outer surface of the fender and outer surface of the wheel.

• The distance 'L' as mentioned in the above fig should be a minimum value , which varies as per standards followed by different countries .
• This helps to reduce the chance of chpping of the wheel with outer particles .
• It helps in increasing pedestrian safety.
• Some of the different standars followed are

• Japanese standars
• Eurpean standards
• American standards.

European standards:

• The clearance 'L' at sections at SA,SB,SC,SD and SE should be greater than 10 mm to satisfy the European standards.

Fender wheel arch area calculation

Calculations:

Clearance for SA

Clearance for SB

Clearance for SC

Clearance for SD

Clearance for SE

sketch for measurements:

observation tabular form mentioned below:

Position	Required clearance value in (mm)	Observed clearance value(mm)
SA	10	9.9489
SB	10	10
SC	10	0.1137
SD	10	2.8998
SE	10	5.9751

RESULT:

I will observed above calculations of the given fender wheel arch design will not pass Euroean standard in the postion SA,SB,SC,SD and SE has a clearance less than 10mm which is the minimum requirement for European standards.