Fender Design - Wheel Arch Challenge

TITLE:- TO calculate wheel arch gap and check model is passe or not as per the european requirement

• INTRODUCTION:-

FENDER is use in the automobile, it is prevent mud, rocks, sand and other road spray from being thrown into the air by the rotating wheels.

When we are driving a car, Then the dust particle comes on the tire of the car. The fender prevents dust and water from coming directly onto the tires.

Design consideration for fender

• Fender and its components
• Functional requirement
• Regulation
• Drip area
• Wheel arch
• Baffle and ORVM mount area
• Frontal crash regulation and requirements
• Gap and flushness requirements

In this project we will focus on the wheel arch. we are discussed European, japan and US requirement for wheel arch. We have tested the Fender model as per the requirements of the European market.

• OBJECTIVE:-

1. discus wheel arch and gap for fender for different countries requirements
2. find the wheel arch gap at all five point of fender model
3. check the all wheel arch gap as per the europe market

• Wheel arch

The shaped part of the bodyframe of a car or other vehicle that allows the tire to be accessed, and in the case of front wheels, enable them to be steered. Wheel Arch Liners are now much more than just covers to protect the bodyframe. Their acoustic and aerodynamic properties make them indispensable components in modern vehicles.

1. JAPAN REQUIREMENT

According to Japanese requirement, the distance between wheel and fender is kept at 5mm. they accept more then 5mm but they do not accept less 5mm.

According to the above photo, cover an area 30 degrees left and 50 degrees right from the vertical axis of the wheel. We apply name B, C, A to start ,end and center point of cover area. These 3point projected on the top view to find distance between wheel and fender. The distance between fender arc and wheel arc is kept at 5mm and more.

2. EUROPEAN REQUIREMENT

As per the European requirement, distance between fender and wheel should be 10mm or greater then 10mm.

As per the above image, Select an area from the 30 degree left and 50 degree right vertical axis on the wheel arc. We apply name SB, SC, SA to start, end and center points of selected area. Name the SE point on the arc of the wheel at a distance of 150 mm from the horizontal axis. Point SD draw between SC and SE, SD is the center of SC and SE.

All point are projected on the top view of the fender arc and wheel arc. And find distance of all points.

3. US REQUIREMENT

As per the US requirement, distance between fender and wheel should be 10mm or greater then 5mm.

Mark every 10 degree point on the wheel arc.Check the clearance at each point and the clearance should be more than 5mm.

• calculating wheel arc of fender model as per european requirments

as per european rules, we divided wheel with using of X and Y axis. from the Y axis, we take area from 30 degree forword and 50 degree backword direction. as per the figure , from the X axis , we mark on wheel radius at 150mm distance.

as per the figure, we give name on the mark point like SA,SB,SC,SD,SE.

clearence between the fender and wheel at the point SA = 9.9490 mm

clearence between the fender and wheel at the point SB=10.00mm

clearence between the fender and wheel at the point SC= 0.1603mm

clearence between the fender and wheel at the point SD=1.8372mm

clearence between the fender and wheel at the point SE=3.6446mm

RESULT

HERE , We have all clearance value of fender between wheel

point between fender and wheel	clearance (mm)
SA	9.9490 mm
SB	10.00mm
SC	0.1603mm
SD	1.8372mm
SE	3.6446mm

• conclusion

As per European requirement, the clearance value should be 10mm more at the five point (SA,SB,SC,SD,SE).But here points SC,SD,SE value is less than 10mm. SC clearance ist less then 5mm, so fender model is not passe as per the european requirments.