Fender Design - Wheel Arch Challenge
OBJECTIVE:- calculate the wheel arch area and prove whether the car will pass the european standards or not.
Different F ender regulations
there are 3 types of regulations
1. Japan regulation
2.European regulation
3.US regulation
1. Japan Regulation
For the calculation purpose we have to take the wheel centre and mark 0 to 180deg and project perpendicular lines from the centre of the wheel and mark it as A then we sholud take 30deg on left of car project and then 50deg line towards right
We have to measure the clearance between tire,hub,cap and fender in different positions within area of k and produce clearance check chart to validate.
The clearance must be greater than 5mm in all the three positions .
wheel guard requrirement the values of a shall be more than 5mm at a line 30deg forward and 50deg rearward from the central vertical axis of wheel.
The above figure represents the fender requlation requirements for Japan.
2. European Regulation
For the calculation purpose we have to take the wheel centre and mark 0 to 180deg and project perpendicular lines from the centre of the wheel and mark it as SA then we sholud take 30deg on left of car project mark as SB and then 50deg line towards right, mark as SC after this we have to take another line from the 0-180deg line and project upwards as shown in fig, and mark the points SD and SE. so now the clearance in all region should be 10mm.
wheel guard requirements the value os a shall be more tahn 5 mm at a line 30deg forward and 50deg rearward from the central vertical axis of wheel.
The above figure represents the fender requlation requirements for Europe.
3. US Regulation
In case of US we have to do same proccedure for every 10deg from -20deg to 180deg and measure the distance and the clearance shold be greater than 5mm to satisfy the regulations.
value os a shall be more tahn 5 mm at a line 30deg forward and 50deg rearward from the central vertical axis of wheel.
The above figure represents the fender requlation requirements for US .
CALCULATIONS
STEP 1: we have to project the lines and curves as shown in the fig and constrain accordingly as needed
STEP 02: after that we should create points on the intersecting lines and the same should project to fender outermost surface
by using measuring too we hace to measure the distance between them
above mentioned figures shows the distance between tier outer surface to fender outer surface
RESULT
TABULAR COLUMN OBSERVATION FOR 'L' CLEARANCE
| SECTION |
CLEARANCE MEASURED (L in mm) |
STATUS |
| SA-SA |
10 |
PASS |
| SB-SB | 9.949 | PASS |
| SC-SC | 0.113 | FAIL |
| SD-SD | 2.888 | FAIL |
| SE-SE | 5.997 | FAIL |
CONCLUSION: we can conclude that the given fender will pass the european regulations