Fender Design - Wheel Arch Challenge

Aim - To study the various standards for fender wheel and calulating the horizontal cleareance btween wheel arc of fender and wheel outer face/ edge

Nomenclature-

fender wheel arc is a component that guards the padestrian and engine components from being hit by debris or mut when vhecile is moveing in a mountain terrian.

According to region the regulations are specified

1. Japaniese Region

• The clearance ‘L’ for tire, hub, cap and fender is to be measured within area K and create clearance check chart to validate
• The value of L should be greater than 5mm at all position
• 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

2.European Regulations

3.US regulations

Procedure for analysis

1. Wheel center point is created by takeing outer wheel circle as a refrence

2.datum plain is created on that point

3.project te outer edge of fender on to the selected datum plane . sketch the 30 degerrs line 50 degrees line as per the guidelines of european regulations

4. measure the axial length a

5. creat the point on intersection of sketch on wheel arc and fender and project the points from fender arc to fender body.

6. Measure the horizontal distance from point on fender arc to fender body

7. if distance is greater than 10 for all the sections then the vechile passes the european regulations

Section	SA	SB	SC	SD	SE
axial value (a) mm	43.06	26	38.4	42.7	47.6

Section	SA	SB	SC	SD	SE
Length L (mm)	10	9.94	0.776	2.8846	5.9973
Results	Pass	fail	fail	fail	fail

At section SA we get length between wheel outer to fender inside 10 mm and at other sections it is below 10 thus the car will not pass the european standards

Conclusion

As all the five sections are not meeting the gudeline of european standards the fender wheel arc fails to guard the pedisterian and engine components from debris .