Fender Design - Wheel Arch Challenge

FENDER DESIGN AND WHEEL

1. When vehicle is moving tiers pick up stones and others hurlthem in all direction.Fenders are basically present to prevent any injuries to pedastrain and contain the motion of these particles.

2.Partially its cover engine compartmant.

3.Most passanger car have four fenders.For vehicle with a narrow car body that expose the tire. the fenders is an exposed curve over the top of the line.for wide body vehicle that cover the tire, the fender

forms the wheel well surrounding the tire and is not directly visible from above the car body.

4.Move elabrate designs include fender skirts for enclosing the outside edge of the wheel well and stylized pantoon fenders for exposed fenders

TYPES

1.Full bumper type

The full bumper type fender was used in old cars.it covers the full area until the front lighting.But it has a lot of sheet metal material which is unnecessary and increases the weight of the fender.these typefenders are no longer usedin automobiles.

2.Half bumper type

cost saving,scrab management and improve performance of vehicle.

FENDER MOUNTING POINT

1.Body

2.A-pillar

3.sill

4.cowl

5.Drip

WHEEL ARCH

1.It is a curved part of the Fender positioned right above the Wheel.

2.The Wheel Arch is designed such that it protects both the pedestrian and car cabin from mud, water rocks and other road spray.

3.Different countries have different wheel arch regulations in place, and the wheel arch design has to comply with them to be deemed usable in that country.

4.For avoiding design alterations of the same vehicle to meet the different regulations in different countries, the maximum values of the concerned regulation parameters are taken into consideration for design purpose.

Fender Wheel Arch Regulations

Japan Regulations

1.The clearance ‘L’ for tire, hub, cap and fender is to be measured within area K and create clearance check chart to validate

2.The value of L should be greater than 5mm at all positions

3.Wheel guard requirement: The value of ‘a’ should be more than 5mm at line 30° forward and 50° rearwards from the central vertical axis of the wheel

European Regulations

1.Clearance ‘L’ should be measured at sections SA-SA, SB-SB, SC-SC, SD-SD and SE-SE and create clearance check chart to validateAt

2.all the five sections the value of L should be greater than 10mm to satisfy the European Regulations

3.Wheel guard requirement: The value of ‘a’ should be more than 5mm at line 30° forward and 50° rearwards from the central vertical axis of the wheel

SKETCH

SA

SB

SC

SD

SE

CONCLUSION

From the above observations the positions SA SC SD SE are less than 10mm which is necessary to pass the European standards. Hence, the frontfender wheel arch does not pass the European standard