Hood design-Week 2

Design of Car Hood in NX cad

Aim

Our aim is to design a hood by using the given master sketch in Nx cad.

Master sketch

Introduction

Hood

Hood is also known as bonnot, which covers the engine and front compartment it is consider more important while designing a car. It determines or gives good look to the car as well as it protect passenger as much as possible during accident and also it s help in aerodynamics to reduce the air effect by passing air through sideways.

Parts of hoods

Basically hood consists of Hood outer panel, hood inner panel, hinges, emboss and latch & striker for closing and open the hood.

Supports in hoods

There are two supports in hood

1. Support rod
2. Gas stay

Support rod

Support rod is most commonly used in most of the vehicle because of it is less weight and able to fit in bonnet or in body of car.

Gas stay

It is another type of support which is to hold the bonnet which has more weight as well as it lift the bonnet itself by slightly opening the bonnet manually.

Hood inner panel

In designing inner panel is created from the outer panel, it consists of emboss, holes in place where it is required. It is designing in such a way that while accident the force are travelled to the side to hinges so that the passenger will be saved as much as possible. The thickness of the inner panel is 0.75.

Hood outer panel

Outer panel covers the inner panel it thickness is also 0.75, it gives the good look to the car. Outer panel is wrap around the inner panel by using the hemming process.

Emboss

Emboss is used to strengthen the material or component for to deviate the force while accident to the end side of hinges. It lifted in upward direction of 5mm and design in such a way to carry or to send the force to the side way as well as it provides the safety for the passenger.

Mastic sealant

Mastic sealant is like a rubber which is on inner panel it help to bring the outer panel to original position from the deformation.

Latch and stricker

It is placed on the inner panel with respectively to hinge axis for the correct or perfect strike by drawing a big circle with respective to hinges so that we come to know the position of placing the latch and with perpendicular to the circle we place the latch to hood.

Reinforcement

Re- inforcement is provided in such area where the force will be more produced or developed. It is to strengthen the area by adding extra material to save passenger during the collision or accident.

Hinges

It is attached to the car body and hood to create a angle of opening the hood. It is placed in such a way that its angle of opening should not crash or hit the head of human.

Hemming process

It the process which joins the inner and outer panel by wraping around the inner and outer panel.

Hood assembly

Conclusion

By using the master sketch the hood of car is created and the latch,hinges is assembled,