Fender Design - Wheel Arch Challenge

AIM:-

Calculate the Wheel Arch gap at required points and check whether the car passes the European standard.

WHEEL ARCH:

• The wheel arch is the semicircular part positioned above the wheel of a vehicle.
• The most important body change was that the front wheel arch was cut higher into the fender.
• Corrosion had occurred around the splash plate at the back of the wheel arch.
• The car was large in size, high definition headlights that extend to the wheel arch.

FENDER:-

• Fender is the US English term for the part of an automobile (vehicle body) that frames a wheel well (the fender underside).
• Its primary purpose is to prevent sand, mud, rocks, liquids, and other road sprays from being thrown into the air by the rotating tire.
• When a vehicle is moving, tyres pick up stones and others and hurl them in all directions. Fenders are basically present to prevent any injuries to pedestrians and contain the motion of these particles
• Most passenger automobiles have four fenders, one over each wheel. For vehicles with a narrow car body that exposes the tyres, the fender is an exposed curve over the top of the tyres. For wide body vehicles that cover the tyres, the fender forms the wheel well surrounding the tyres and is not directly visible from above the car body.
• Wheel wells tend to be much larger than the diameter of the tire because they do not move with the tyres suspension and consequently must be large enough to allow the full range of tire motion on the suspension without touching the interior of the wheel well.
• More elaborate designs include fender skirts for enclosing the outside edge of the wheel well and stylized pontoon fenders for exposed fenders.

MATERIAL USED:-

The most commonly used wheel well are of plastic material. In the olden days, the inner fender or wheel well was made of sheet metal. If the vehicle with metal inner fenders is used there is a good chance that winter salt and moisture have caused them to develop some rust in hard-to-spot areas. Improper repairs after an accident can also accelerate corrosion here as well.

FENDER SAFETY:-

• The fender is a part of the car, it is also used a protect the side of the engine compartment.
• Pedestrian safety is also considered while designing a wheel arch in a fender since the debris in the wheel shouldn't hit them in the motion of the car.
• Fender is also reduced pedestrian injury when there is a pedestrian-vehicle crash and prevents the throwing up of debris nearby vehicles

TYPES OF FENDER:

The type of fender is based upon the area covered

1. Full fender type.
2. alf fender type.

Full fender type

The full fender type is the traditional type of fender where more material consumption is observed. This type is used in the old designs of automobiles where it increases the overall weight and thus reduces performance. The maintenance is also relatively more due to more surface.

Half fender type

Half fender type is a modern design where less material consumption is observed, so productivity increases by reducing the size of the blank and thus providing more performance. The maintenance is also relatively low compared to the full bumper type.

PROCEDURE:

1. According to European standards, the design fender and wheel arc should pass the wheel guard requirement procedures.
2. To start the test, first, create a plane with the face of the wheel Arc.
3. Then sketch using lines along with given dimensions as SA, SB, SC, SD, and SE.
4. After sketching the project the intersection points onto the fender face.
5. Then use the measure distance tool and calculate the clearance between sketch lines and wheel arc.
6. The clearance between the SA line and wheel arc is 9.9535mm also the line SA lies outside the fender so it is a negative value.

CONCLUSION: From the above results we can conclude that the fender does not pass the European regulations, as the minimum clearance L between the fender wheel arch and wheel for vehicle and pedestrian safety is 10mm and this design does not meet the requirement.