Fender Design - Wheel Arch Challenge

FENDER DESIGN WHEEL ARCH CHALLENGE

AIM : To check the Europian standard compliance of fender by calculate the Wheel arc gap at required points

EUROPIAN STANDARD FOR FENDER DESIGN

Europian standard prescribe that the wheel must be commpletely inside the fender at every point from the fender wheel arch,wheel must keep a distance of atleast 10mm from the fender wheel arc at every point. This standard is implemented to avoid the casualities that may occur by debries thrown out by the tyre while running condition.(L=10mm mandatory)

Procedure for checking the Europian standard

1. Construct a line 30 degree anticlockwise and 50 degree clockwise from the center of horizontal axis in the plane of wheel
2. create annother reference line 150mm above the horizontal line to intersect the fender wheel arch
3. construct a line from center through the intersection point of 150mm offset line and wheel arch
4. Construct a line bisecting the 50 degree line and line through intersecting point of 150mm offset line and wheel arch
5. Mark all the intersection point with the constructud lines
6. project the inter section points on to the fender wheel arch body
7. measure the distance of the actual intersection point and the projected point.

ANALYSIS

TOP VIEW OF FENDER ( red line indicates the tyre plane)

POINT	REQUIRED DISTANCE	MEASURED DISTANCE	REMARK
A	10mm	10mm	passed
B	10mm	9.94mm	Failed
C	10mm	-0.113mm	Failed
D	10mm	-2.887mm	Failed
E	10mm	-5.997mm	Failed

INFERENCE

Except point A all other failed to meet the minimum requirement of 10mm as per the Europian standard. Point C,D,E indicates that the tyre is protruding out of the wheel arch so this fender design does'nt comply wth the Europian standard. There is a need of modification in the fender design according to the specified standard.