Fender Design - Wheel Arch Challenge

Wheel arch area :

• It is a curved part of the fender positioned right above the wheel.
• The wheel arch is designed such that it protects both the pedestrain and car cabin from mud water rocks and other road spray.
• 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.
• For avoiding design alterations of the same vechile to meet the diffrent regulation in different countries ,the maximum values of cocerened regulation parameters are taken into consideration for design purpose.

• The clearance L should be measured at sections SA- SA , SB-SB,SC-SC, SD-SD ,SE-SE And create clearance check chart to validate .
• At all the five sections the value of L should bee greater than 10mm to satisfy the european regulation.

Wheel guard requirement :

The value of should be more than 5mm at line 30 degree and 50 degree rearwards from the central vertical axis of the wheel.

SKETCH:

:

1. Clearance L at SA (L=9.9489mm)

2.Clearance L at SB-SB(L=10.00mm)

3. Clearance L At SC -SC(L=0.113667)

4. CLEARANCE L AT SD-SD(L=2.8814)

5.CLEARANCE 'L' AT SE-SE(L=5.9751)

Measuring the clearance value a for wheel guard requirement

1. Clearance 'a' at 30`degree` line SB(A=43.9119)

1. CLEARANCE 'a' at 50 degree line SC(A=42.2830)

SECTION	Clearance 'L' (IN mm)	Comments	a(>5mm)	Result
SA	9.9489	Fail	43.9119	PASS
SB	10.00	Pass
SC	0.11366	Fail	42.2830	PASS
SD	2.8814	Fail
SE	5.9751	Fail

CONCLUSION: From the above results we can conclude that the fender does not pass the european regulation as the minimum clearance L BETWEEN the fender wheel arch and for vechile and wheel for vechile and pedestrain safety is 10 mm and this design does not meet the requirement.