Fender Design - Wheel Arch Challenge

OBJECTIVE

The objective of the project is to measurethe wheel arc area of the front fender of a car by using the modal provided by the styling team. The wheel arc must be calculated by following the European standard regulations.

INTRODUCTION

The wheel arch is the semicircular part positioned above the wheel of a vehicle.The wheel arc standard differs from region to region ,to minimize the productivity time the maximum deviation values will be fixed which satisfies every region.

Due to fender to avoid chipping of mud & stones like particles inside the engine compartment & helps in preventing the particls thrown towards the pedestrians so as to ensure their safety.

WHEEL ARC AREA STANDARD

There are three types of wheel arc regulations followed which almost covers the entire region all over the world as per the condition of the road condition in their respective regions.

A. JAPAN STANDARD

B. EUROPE STANDARD

C. US STANDARD

A. JAPAN STANDARD

• The Measure clearance 'L' between the outer surface of the tire & fender in three different position within area K as mentioned in the figure below must be greater then 5mm.
• The value of 'L' shall be more than 5mm at line 30 forward & 50 rearwards from the central vertical axis to the axis of the wheel.

B. EUROPE STANDARD

The Measure clearance 'L' at sections SA,SB,SC,SD & SE should be greater then 10mm to satify European regulation.

C. US STANDARD

All value should be greater then 5mm to satify US regulation.

Fender wheel arch area calculation as per European standard

As per European standard respective points are maked in the fender as given below.

1. Clearance for SA = 9.9491mm

2. Clearance for SB = 10.0000mm

3. Clearance for SC = 2.7876mm

4. Clearance for SD = 0.661798mm

5. Clearance for SE = -2.3529mm

wheel arch area calculation as per European standard

S.no	Position	Clearance Value 'L' in mm	Minimum value Required as per standard	Remarks
1	SA	9.9491mm	10mm	Will not pass the standard
2	SB	10.0000mm	10mm	Will pass the standard
3	SC	2.7876mm	10mm	Will not pass the standard
4	SD	0.661798mm	10mm	Will not pass the standard
5	SE	-2.3529mm	10mm	Will not pass the standard

Conclusions

• For the above table,it is observed that the given fender will not pass the european stabdards in the positions SA,SC,SD & SE.
• This Data will be send to the design styling department for further modifications.