Roof Design
The roof of a car or other vehicle is the top part of it, which protects passengers or goods from the weather. The roof also protects the passenger from any injury when the car gets crashed or is rolled over or something heavy falls on the roof.
OBJECTIVE:
1.Main objective of the project is to create the Roof Sheetmetal design in NX cad, and also designing Front roof rail, rear roof rail, bow roof front, bow roof rear, center roof rail and Reinforcement are creating to build the strong roof.
2.Do curvature study on Roof and performance calculations for Heat distortion and Snow load criteria to determine the position of the Bow roofs.
3.Finding the moment of inertia and section modulus for Bow-roofs and center roof rail.
4.And, also finding the Draft Analysis of each part.
DESIGN CONSIDERATION
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Visibility criteria
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Head clearance
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Curvature study
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Hear distortion and snow load criteria
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Draft analysis.
Components of roof
Front Roof Rail

Bow Roof 1 and 2

Centre roof

Rear Roof Rail

Draft analaysis
Roof
Front Roof

Bow roof 1 and 2
bow roof 1

Bow roof 2

Rear roof rail

center roof

Heat disotrtion
| Bow position | Rx | Ry | R | I | L | t | R^2/2 | W | OK/NG |
| FR & 1st | 5725.3 | 2257.1 | 3237.84 | 277.3 | 2032 | 0.75 | 5241803.93 | 1.28 | OK |
| 1st & CR | 5081.3 | 5656.3 | 5353.4 | 537.3 | 2032 | 0.75 | 14329445.78 | 1.82 | OK |
| CR & 2nd | 3895.3 | 11603.4 | 5833.4 | 535.3 | 2032 | 0.75 | 17012761.12 | 1.89 | OK |
| 2nd & BR | 3211.7 | 17043.7 | 5404.9 | 256.4 | 2032 | 0.75 | 14606472 | 1.52 | OK |