Hood design-Week 2

HOOD DESIGN

AIM

OUR aim for the project is to creat a hood assembly from the hood outer panel which is provided as input surface to us according to the master section sketch.

HOOD is an opening body panel that covers the engine in a front engine vechile .The hood is consider as a another type of door in a vechicle as if consists of an outer panel ,inner panel. The inner panel provides strength while the outer panel function as the metal cover.

Hood outer panel : outer panels are the aesthetic elements of a car .it is the styling team who provides the skin for the outer panel .The shape ,position and size of the hood should satisfy the safety norms .so while designing the hood we should give more importance to pedestrian safety.The outer panel attached to the inner panel by hemming .so ot is necessary to provide required hemmingflange and reliefs for the hemming operation we also give mastic sealants between outer panel and inner panel to reduce vibration.

Hood inner panel: Inner panel is the part that gives strength and rigidity to the outer panel.The master section represent the initial emboss shape and size .Then we provide the emboss for the latch and hinge elements after fixing the location.

Emboss: created different types of emboss in inner panel.we can increase the stiffness the inner panel through the embosses.the forces shouid be always distributed away from the passengers . the emboss are designed in such a way that the force is directed to either sides of the car.

Latch trajectory:Latch trajectory is given by the circle drawn from the hinge axis point .hinge axis point is the centre point of the hinge axis .first we can fis the hinge and make two point and mid point in between the two point .the center point to draw the circle .for the proper striker axis through the tip of the striker should be tangential to the latch trajectory.

mastic sealant data : mastic sealant are used to stick the inner surface of outer panel and inner panel.mastic sealants are elastic compound thst behaves like rubber .

Hemming:

FINAL ASSEMBLY

CONCLUSION

IN this challenge i learned todesign the hood inner panel ,outer panel with the help of master section and the styling surface. and alo learnt assembly hood inner panel ,outer panel , and the reinforcement like latch and hinges