Fender Design - Wheel Arch Challenge

FENDER REGULATIONS

Fender Wheelarch Regulations

For every region there is a regulation for wheelarch of the fender for pedestrian safety, Basically the 'L' & 'a' value is calculated and the measurement should be according to the regulations. The 'L' is the vertical distance from the wheel arch area to the wheel, where as the 'a' value is the horizontal distance from the wheel arch area to the wheel.

For egsample, In european fender wheel arch regulations the L value should be more that 10mm and the a value should be more than 5mm.

Fender wheelarch calculatons

Given data -

The position of the wheel and the fender is given to us as a part file as shown in the image above

These are the lines and points made and projected according to requirement to calculate the measurements of vertical and horizontal distance from wheel arch to tyre. -

We have made five points by giving the names section a , b , c , d , e respectively

Section a

'L' Measurement

'a' Measurement

Section b

'L' Measurement

'a' Measurement

Section c

'L' Measurement

'a' Measurement

Section d

'L' Measurement

'a' Measurement

Section e

'L' Measurement

'a' Measurement

Tabuar Column Measurements

As per european regulations

Sections	Required 'L'	Measured 'L'	Required 'a'	Measured 'a'
section a	10mm	9.94mm	5mm	32.5mm
section b	10mm	10mm	5mm	49.6mm
section c	10mm	0.113mm	5mm	43.3mm
section d	10mm	-2.88mm	5mm	47.6mm
section e	10mm	-5.99mm	5mm	52.3mm

Conclusion

So as per the european regulations only section b 'L' measurement is right rest all fail.