Options for 2nd Stage Composition

1.

Options for 2nd Stage Composition
R&D Team

2.

2nd stage composition variants

3.

2nd stage shell mass distribution
Table of mass distribution
LOx tank shell
Bottom upper
Bottom down
Cylinder
Reinforced ring upper
Reinforced ring down
LNG tank shell
Bottom upper
Bottom down
Cylinder
Reinforced ring upper
Reinforced ring down
Intertank
Cylinder
Flange upper
Flange down
CommonBulkhead
Reinforced ring LOx
Reinforced ring LNG
Bottom Lox
Bottom LNG
thermal insulation
Total shell mass
%
3D-model / calculated
mass
Intertank
Common Bulkhead
206.87
134.81
33.57
33.57
46.5
0
76.2
76.2
25.3
25.04
25.3
0
179.49
151.59
33.57
0
46.5
46.48
48.82
80.07
25.3
0
25.3
25.04
119.33
0
76.85
0
21.24
0
21.24
0
0
132.96
0
25.04
0
30.09
0
35.29
0
32.54
0
10
505.69
419.36
17.07
*1) uncertainty in material properties
Uncertainty
coeffitient
1.15
1.15
1.3
1.05
1.05
1.1
1.1
1.3
1.05
1.05
1.3
1.05
1.05
1.05
1.05
1.15
1.15
1.1
With Margin
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
*1)
Intertank
Common Bulkhead
244.2705
163.9575
38.6055
38.6055
53.475
0
99.06
99.06
26.565
26.292
26.565
0
204.673
181.511
36.927
0
51.15
51.128
63.466
104.091
26.565
0
26.565
26.292
144.509
0
99.905
0
22.302
0
22.302
0
0
146.891
0
26.292
0
31.5945
0
40.5835
0
37.421
0
11
593.45
492.36
17.03
Total shell mass

4.

Common bulkhead structure
LNG half – unified structure
(equal structure design)
LOx half – unified structure
(same Dome and Reinforced ring structures)
LNG half
Dome
Dome
Reinforced
ring
Bolt
joint
Welding
joint
Welding
joint
Reinforced
ring
LOx half