Fender Design - Wheel Arch Challenge

AIM:Calculate the Wheel Arch gap at required points and check whether the car passes the European standard.

wheel arch area:it is the semicircular profile above the tyre which is designed to protect both engine component and for pedestrian safety.

Different countries have different wheel arch regulations in place depending upon the road condition.

European Regulations :

• The clearance "L" should be measured at sections SA-SA, SB-SB, SC-SC, SD-SD and SE-SE and create clearance check chart to validate.
• At all the five sections the value of L should be greater than 10mm to satisfy the European Regulations.
• Wheel guard requirement : The value of "a" should be more than 5mm at line 30degree forward and 50degree rearwards from the central vertical axis of the wheel.

wheel arch area calculations:

1.from the given Nx file, we need to create sketch on the outer face of the wheel.

2.project the outer periphery of the fender.Create horizontal and vertical axis.On left side create line having 30 degrees from vertical axis.Next create line on right side having 50 degrees from the vertical axis.please refer below attached snap shot.

now using the simple measurement tool we need to measure the distance between the outer wheel to outer fender.

• "a" should be more than 5mm at line 30degree forward and 50degree.
• "L" should be greater than 10mm

From the measuing for clearence are given below

for "a" values

SB = 43.62 mm

SC = 38.26 mm

for "L" values

SB-SB = +10.0 mm

SA-SA = + 9.94 mm

SC-SC = + 3.0 mm

SD-SD = + 0.93 mm

SE-SE = - 2.29 mm

Conclusion :

From the above results we can conclude that the Fender does not pass the European Regulations as the minimum clearance between the fender arch wheel to the outer most wheel is 10 mm and this design does not meet the this minimum clearance so this fender design is fail for the European Regulation standard.