Fender Design - Wheel Arch Challenge

Fender Design - Wheel Arch Challenge

Aim:

To calculate the wheel arch area of the given fender model and validate whether the fender design pases the European Standards or not.

Introduction:

Fender is a metal or plastic enclosure over the wheels of an automobile or other vehicle to protect against splashing mud, etc.

Wheel arch is an arch-shaped cavity in the body of a vehicle, which houses a wheel ande and in the case of front wheels, enable them to be steered. The design of Wheel arch of a fender should be such that it must shield wheels and protect both passengers' compartment and pedestrians from projection of water, mud and stones.

Also, wheel arch is semi-circular edge of the fender which houses wheel-well. The wheel arch gives access to the wheel and other components attached to it

There are various standards across different countries for the wheel arch area to be satisfied as below,

1. U.S standard
2. Japan Standard.
3. European standard.

In this report we will be taking European standard into consideration.

U.S standards:

• The minimum clearance should be greater than 5mm to satisfy the regulations.

Japanese standards:

• The value of L should be greater than 5mm at all positions

European standard:

• The minimum clearance at all the points should be equal or greater than 10mm between the fender and wheel.

Given Model:

Procedure:

• Create a Datum plane normal to the outermost surface or edge of the wheel.

• Click sketch ans create the SB, SC, SD, SC and SA lines accordingly.

• Project the arch as shown below.
• Trim the lines with repsect to the projected profile.

• Now Exit the sketch once all the lines are created.
• Click Measure distance in analysis tab to calculate the various values required.

• SA Distance:

• SB Distance:

• SC Distance:

• SD Distance:

• SE Distance:

Here the SC, SD, and SD are in negative directions due to design of the fender.

Comparison with European Standard:

Sections	Standard	Actual Clearance	Result
SA	10mm	9.9489 mm	FAIL
SB	10mm	10 mm	PASS
SC	10mm	-0.1136 mm	FAIL
SD	10mm	-2.8817 mm	FAIL
SE	10mm	-5.9755 mm	FAIL

Conclusion:

By comparing the values obtained from the European standard value, It is observed and concluded that the fender model fails to meet the requirements at SA, SC, SD and SE locations. The model should be altered and corrected to meet the quirements.