Challenge

Fender Design

AAnjaneyulu Derangula1 Jan 2023

FRONT FENDER DESIGN

OBJECTIVE :

The aim of these project is to design fender and the main design requirements for Drip, Bumper, A pillar and Sill mounting areas.

FENDER :

Fender is a front outer side member of a car which covers the wheel side. Fender purpose is to prevent sand, mud, rocks, liquids and other particles. or

Fender is a closure component, closing the engine compartment and other compartments. The major role of the fender is to avoid the chipping inside the engine compartment. During the motion the wheel picks a sand mud and small stone particles and throws it inside the car and these fenders will be helpful in preventing them by hitting inside the engine compartment and car body. These fenders will have a plastic part which lies on wheel arch area. The fender plays a major role to avoid problems for pedestrian also.Fender are typically rigid and can be damaged by contact with the road surface. It is often also called as Mudguard.

TYPES OF FENDERS :

Full Bumper Type.
Half Bumper Type.

FULL FRONT FENDER :

If the fender covers the tire, the wheel well surrounding the tire, and it is not directly visible from above the car body. It increases the weight and scrap of the component.

HALF FRONT FENDER :

It reduces the weight and scrap. It creates only half of what the full front fender does and the other part is created with the bumper part.

USES OF CAR FENDERS :

Car Fender limit the exposure of your car's body and engine to external elements that are harmful.
Fender flares are attached to ensure that both the body and engine have minimal contact with corrosive elements
Car Fenders provides safety to the driver and the passengers at the time of accidents or collisions. They are manufactured in a way to provide bend during front and side collisions.
Car Fenders are designed to avoid wind resistance and make your car more aerodynamic
Car Fender enhance the overall look of your cars. Fender flares are available in distinctive designs in the market. Mostly you find universal Fender flares, but you can get customized cars Fenders to fit your car wheels.

AREAS TO BE CONSIDERED FOR FRONT FENDER DESIGN OF A CAR :

Drip area
Bumper mounting area
Sill mounting area
Body mounting area

The drip area is the connection of the fender with the engine compartment.

DRIP AREA:

It is the area through which the Fender is attached to engine housing through fasteners. There shold be some consideration followed to design the drip area, from back side of the fender there should be 200mm clearence for cowl mounting area and from the front there should be 150mm clearence for the head lamp housing unit.
Considering the above design constrains we have to design the drip area. Embosses are provided to increase strength, corners of the flanges are smoothen to ease of the production. Uniform wall thickness of 0.75mm.
Design Consideration for drip area are150mm distance from front end of the fender and the gap is filled with headlamp200mm distance from rear end of the fender and the gap is filled with wiper motor assembly.

A PILLAR MOUNT AREA :

A Piller is on the cars either side of the front windshield which is the reason the windshield in the place.
It is Mounted on the A Pillar by means of fasteners and these are covered by outer side view mirrors.
Here, the proper embossing are provided along with holes for fasteners.

SILL MOUNT AREA :

The Sill Mounting area is in the bottom of the fender.
It is mostely gets connected with the door region of the car.
Here, proper embossing and holes for the fasteners are provided.
The ribs are provided to improve the strength.

BUMPER MOUNT AREA :

In this Mounting, the Fender connects with the bumper. The Bumper Mounting region must be rigid in order to withstand the force acting upon it during collision. So, the Mounting space can be larger.