hood design

OBJECTIVE

Design hood inner panel, position hinges and striker and provinding emboss and mastic points

DESIGN DATA

• Outer Panel Thickness = 0.75mm
• Inner Panel Thickness = 0.75mm
• Reinforcement Thickness = 1.5mm

ABOUT HOOD :Hood is also called as bonnet. Its is used to protect the engine compartmant and improve aerodynamics of car. Also provide protection to pedistrains. It is also used to cover the engine bay and electical parts of cars from weather.

Hood Design sketch

• Using master sketch to desing hood inner panel.

• First Create offset of Parent part at 0mm and move this offset part in new feature group. And using this offset part for the reference of inner panel part.
• Using this offset part for new offset and create flanges.
• While desinging hood we need to make sure that there should not be any sharp edges.
• Embose in inner panel of hood is created to dissipite the force toward the hinges, so that bonnet take most pf damge not the pedistrain and passengers car. Emboses is used to move the force direction after carsh toward the hinge.
• After embosse we need to provide mastic points in car hood. The mastic sealant or the mastic point is an elastic compound that behaves like a rubber. The mastic points are defined on the hood inner panel where the hood can easily deform. They help the hood outer panel to come back to its original shape a`fter it gets deformed. The mastic has an influence area of 80mm
• Now thicken the inner panel by 0.75mm
• Now Providing hemming using below data.
• Hemming process: Hemming is a technology used in the automotive industry to join inner and outer closure panels together (hoods, doors, tailgates, etc.) means enclosed ccompontent. It is the process of bending/folding the flange of the outer panel over the inner panel.

• Providing relifes on conrner of outer panel to reduce the stress.

POSITION OF HINGE AND STRIKER

Postion of hinge and striker is important wheather we take from old cars and from parent car for save time and efffort. Because it provide opening and closing of hood. This is done with the help of latch and striker. for perfect closing and opening of hood striker and latch should be at peependicular to each other. To find the placement of latch draw a circle taking radius from the middle of hinge axis and striker. then Draw the tangent line from circle to find postion of latch.

RENFORCEMENT MATERIAL are applied at hinge and at striker for more strength to material Because hood is design to take consideration of safty. So we need to add extra material to increase its hardness.

Thickness of renforcement marterial 1.5mm.

CONCLUSION : Creating hood panel with given dimensions and provide hemming.

https://drive.google.com/drive/folders/19i8WdvMaQxu1X8B8Ejr3CM2Uhhekkje6?usp=sharing