BrianJ
Number of posts : 58
Registration date : 2007-03-22
 | | Subject: Booster seperation Mon 9 Apr - 6:12 | |
| The booster separation (4 boosters) looks a little strange to me. You can try this - it seems more "natural" to me..... (but perhaps it is not correct for Soyuz? - I don't know) [BOOSTER_2]
N=4
MESHNAME="M_Soyuz\Soyuz_stage1"
OFF=(1.34,1.34,-4)
HEIGHT=19.6
DIAMETER=2.68
THRUST=1021000.0
EMPTYMASS=3800
FUELMASS=39160.0
BURNTIME=120
eng_1=(0,0.45,-10)
eng_2=(0.46,0,-10)
eng_3=(0.46,0.92,-10)
eng_4=(0.92,0.46,-10)
ENG_DIAMETER=0.5
ENG_PSTREAM1=sm
ENG_PSTREAM2=ex
ANGLE=0
SPEED=(2,2,0)
ROT_SPEED=(0.1,-0.1,0)
ENG_TEX=Soyex   | |
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No matter
Number of posts : 57
Registration date : 2007-03-22
| | Subject: Re: Booster seperation Mon 9 Apr - 13:41 | |
| Yes, I know it might be weird and I really don't know if it is really correct or not.  There is only one thing that I am sure: the bottom attach is cut first then the top attach follows. So it may be accurate the way I have set it but I can't be sure. The first R7 intercontinental missile release for Orbiter did it this way but the second release has a different way to do the separation. So I am affraid that the real booster separation use "2 vectors", one when separation from the bottom attach occurs and then another when the top attach breaks, no way to do that with Multistage! Soyuz' manual doesn't give more clues...  | |
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No matter
Number of posts : 57
Registration date : 2007-03-22
| | Subject: Re: Booster seperation Mon 9 Apr - 14:17 | |
| From this picture I guess the separation is done the way it is set on our ini (look at the exhausts). Ahhh, if only the camera had a stronger zoom!  | |
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BrianJ
Number of posts : 58
Registration date : 2007-03-22
| | Subject: Re: Booster seperation Mon 9 Apr - 15:41 | |
| - No matter wrote:
- There is only one thing that I am sure: the bottom attach is cut first then the top attach follows. So it may be accurate the way I have set it but I can't be sure.
Ahh! Then I think you are correct  But the SPEED and ROT_SPEED parameters are still a little strange because the boosters are in the 45, 135, 225, 315 (degrees) position. Perhaps this is better...(rotation reversed) [BOOSTER_2]
N=4
MESHNAME="M_Soyuz\Soyuz_stage1"
OFF=(1.34,1.34,-4)
HEIGHT=19.6
DIAMETER=2.68
THRUST=1021000.0
EMPTYMASS=3800
FUELMASS=39160.0
BURNTIME=120
eng_1=(0,0.45,-10)
eng_2=(0.46,0,-10)
eng_3=(0.46,0.92,-10)
eng_4=(0.92,0.46,-10)
ENG_DIAMETER=0.5
ENG_PSTREAM1=sm
ENG_PSTREAM2=ex
ANGLE=0
SPEED=(2,2,-0.5)
ROT_SPEED=(-0.1,0.1,0)
ENG_TEX=Soyexhere is an image to explain.....  but....it is not a big difference....just an idea | |
|
Mustard
Admin
Number of posts : 93
Registration date : 2007-03-22
| | Subject: Re: Booster seperation Tue 10 Apr - 9:24 | |
| I note this fix, for the next Soyuz v0.17a
Thx | |
|
No matter
Number of posts : 57
Registration date : 2007-03-22
| | Subject: Re: Booster seperation Tue 10 Apr - 10:33 | |
| Oh yes! my mistake!! I had totally forgotten the 45° rotation of the meshes.  I am glad that you had seen the problem! Thanks!  | |
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| | Subject: Re: Booster seperation | |
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