Fender Design

INTRODUCTION

• Fender is the American English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well (the fender underside). Its primary purpose is to prevent sand, mud, rocks, liquids, and other road spray from being thrown into the air by the rotating tire. Fenders are typically rigid and can be damaged by contact with the road surface.
• Early automobile fenders set over the wheels to prevent mud, sand and dust being thrown on to the body and the occupants. Fenders typically became a more integral part of overall auto bodies by the mid-1930s. In contrast to the slab-sided cars, the Volkswagen Beetle had real bolt-on fenders over both its front and rear wheels.
• In current US auto industry nomenclature, usually only the panels over the front wheels are called fenders. The auto industry changed from rear fenders bolted onto a quarter panel to an enlarged welded-on quarter panel that fulfilled both functions. This resulted in one piece where there had previously been two, and name of the larger welded piece, the quarter panel, survived the consolidation. Quarter panels are at the rear, with an exception made for dual rear wheel trucks, where the panel at the rear is called a fender. For vehicles with a narrow car body that exposes the tire, the fender is an exposed curve over the top of the tire. For wide body vehicles that cover the tire, the fender forms the wheel well surrounding the tire, and is not directly visible from above the car body.
• The fender's openings for the wheel wells tend to be much larger than the diameter of the tire, because they do not move with the tire 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.

MOUNTINGS:

Inorder to fix the Fender, Mountings are essential. In our design we classified these mountings in 5 areas, namely

• Drip Area Mounting.
• Bumper Mounting.
• Sill Mounting.
• A-Pillar Mounting.
• Splash / Baffel Mounting.

DRIP MOUNTING

• It is the most important mounting unit of a fender. It is connected with the engine compartment and therefore a lot of design constraints are to be followed while designing the drip area

BUMPER MOUNTING:

SILL MOUNTING.

A-PILLAR MOUNTING

SPLASH / BAFFEL MOUNTING:

CONCLUSION

Thus the Drip Area, Bumper Mount, Cowl Mount, Sill Mount, and A-Pillar Mount were designed for the Fender from the styling surface provided.