Fender Design - Wheel Arch Challenge
Wheel Arc calculations:
Fender is a part of automobile body that frames a wheel well.
The purpose of fender is to prevent sand ,mud , liquids from being thrown into engine compartment by rotating wheel and also prevent pedestrians getting hit by particles by wheel.
To maintain safety for pedestrians every nation made safety regulations which every car must pass these standards.
For Example
Japan standard: As per japan standards automobile wheel should be minimum 5 mm inside the fender extreme. As shown in the figure we have to check the distance at intersection point B and C obtained from wheel at 30 degree and 50 degree and distance between B/C point to Fender extreme should be 5mm to pass japan standard.
European standard: As per European standards automobile wheel should be minimum 10 mm inside the fender extreme. As shown in the figure we have to check the distance at intersection point B and C obtained from wheel at 30 degree and 50 degree and also we have obatin intersection point at mid point formed by line above 150 mm from wheel center and 50 degree line and distance between B,C and mid point to Fender extreme should be 10mm to pass european standard.
Analysis of given fender design as per european standards:
* For the analysis of given fender design as per european standards we have to determine distance between wheel and fender which should be minimum 10 mm.
* As per european regulation car wheel should be minimum 10 mm inside from the fender extreme point.
Given fender and wheel model
Creating points at 30 ,50 , 90 degree and mid point between 150mm above wheel center and 50 degree
Distance Between fender and wheel at 30 Degree (A) is 11.22 mm
Distance Between fender and wheel at 90 Degree (B) is 10 mm
Distance Between fender and wheel at 50 Degree (C) is 6.6 mm
Distance Between fender and wheel at Point D is 6.4 mm
Conclusion: As we observed in the above images Gap between fender and wheel at
Point A: 11.22 mm.
Point B: 10 mm.
Point C: 6.6 mm.
Point D: 6.4 mm.
Where Point A and B is above 10mm so it clears the european standard but Point C and D is below 10mm so we have inform styling team to change the design at point C and D to clear european standard