Roof challenge
ROOF DESIGN :-
- It is top frame part of car which give protection to passengers from sunlight, snow and rain.
- It is designed in mainly 6 parts
1.Top Outer Roof
2.Front Rail Roof
3.Bow Roof
4.Center Reinforced Roof
5.Rear Rail Roof
Quantity of Bow roof may change according to Length of roof.
Design conditions: -
- Ditch area maintained minimum 7°
- Mastic points added.
- Bow roof Prediction formula satisfied.
- Snowed condition satisfied except CRR – BR2 area.
| BOW ROOF PREDICTION FORMULA | ||||||||
| POSITION | L | Rx | Ry | R | T | l | W | |
| FRR-BR1 | 2125 | 2235.123 | 4064.593 | 2884.214 | 0.75 | 331.2 | 1.565764 | okay |
| BR1-CRR | 2125 | 6409.525 | 3813.405 | 4781.822 | 0.75 | 421.9 | 2.024363 | okay |
| CRR-BR2 | 2125 | 10955.32 | 3662.874 | 5490.138 | 0.75 | 418.8 | 2.200423 | okay |
| BR2-RRR | 2125 | 5729.07 | 4329.809 | 4932.116 | 0.75 | 402 | 2.038486 | okay |
| SNOW LOAD PREDICTTION FORMULA | |||||||||||||||
| POSITION | A | Lx | Ly | T | Y | Iy | Rx | Ry | L1 | L2 | S | α | Qr | ||
| FRR-BR1 | 2125 | 1048.1 | 2033.7 | 0.75 | 476.4378 | 331.2 | 4064.593 | 2235.123 | 291.7778 | 184.6599 | 238.2188 | not okay | 0.81503 | 9.671224 | okay |
| BR1-CRR | 2125 | 1085.564 | 2033.7 | 0.75 | 500.0236 | 421.9 | 3813.405 | 6409.525 | 291.34 | 208.6836 | 250.0118 | not okay | 0.903723 | 4.020178 | okay |
| CRR-BR2 | 2125 | 1061.1 | 2033.7 | 0.75 | 493.5386 | 418.8 | 3662.874 | 10955.32 | 253.3164 | 240.2222 | 246.7693 | not okay | 0.855855 | 2.087906 | not okay |
| BR2-RRR | 2125 | 1132.233 | 2033.7 | 0.75 | 420 | 402 | 4329.809 | 5729.07 | 174.7778 | 245.2222 | 210 | not okay | 0.868847 | 4.899442 | okay |
