Fender Design - Wheel Arch Challenge

Aim: To decide whether the given design passes the European standards or not

Design:

European Regulations Requirement:

Measure the distances between the points on the wheel circle and fender curve. All of these should be greater than 10mm to satisfy the European regs.

• Secondly, the horizontal distances from SA, SB, and SC points to the fender curve should be at least 5mm.
• Check whether the design passes these conditions and conclude whether it can pass the European Regulations Requirement

Challenge:

Sketch has been made.

Now let us measure the distances between the points at the 5 sections.

SA-SA

30.664mm > 10 mm

SB-SB

45.084mm > 10 mm

SC-SC

39.162 mm > 10 mm

SD-SD

49.714 mm > 10 mm

SE-SE

56.598 mm > 10 mm

Now to find the horizontal distance between the wheel and the fender. This distance should be at least 5mm from SA point, SB point, and SC point.

Project the made sketch onto the plane of the wheel.

Distance between SA point and fender outer curve = 9.96 mm (pass)

Distance between SB point and fender outer curve = 10 mm (pass)

Distance between SC point and fender outer curve = 0.914 mm (fail

Conclusion: The given design satisfies all European standards but one, i.e. the distance from SC point to the fender curve (which is just 0.914 mm), which is way below the recommended 5 mm minimum distance. Therefore, this fender cannot pass the European standards. The design should be reverted back to the class A designer telling him to modify the design and increase the gap there.