band - JAXA...e p a r a t i o n p l a n e ) C h e c k d i m e n s i o n a f t e r m a t i n g 1 2....
Transcript of band - JAXA...e p a r a t i o n p l a n e ) C h e c k d i m e n s i o n a f t e r m a t i n g 1 2....
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Appendix A
Epsilon User’s Manual
Appendix A
PAF-937M Interface
This appendix describes PAF-937M Interface.
The separation system, PAF-937M, features a Marman clamp band with a diameter of 937 mm and a
low shock separation mechanism (LSSM) with a non-pyrotechnic device.
band
LSSM
Φ937
BandCatcher
Marman Clamp Band of PAF-937M
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Epsilon User’s Manual
A1. Details of Mounting Position
Distances from STA* to the separation plane are as follows:
・For single launch STA 6698.5 mm
・For multi launch STA 5238.5 mm
*STA (station): The origin is at the top of the fairing, from which distances are measured in a
longitudinal direction of LV, or along XB axis. The figure increases toward lower stages.
The coordinate system in this document is the same as shown in Chapter 2.2. The origin is at the
center of the separation plane.
A2. PL Usable Volume
PL usable volume is defined in Chapter 4.1.1.
The usable volume for PL in single launch is shown in Figure 4-1.
The usable volume for Small satellite in multi launch is shown in Figure A2-1.
Figure A2-1 PL Usable Volume (multi launch)
[mm]
Separation plane STA
5238.5
φ600 100
φ236
3935
1398
100
φ959
φ1850
Small satellite
(multi launch)
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A3. Mechanical Interface
(1) Configuration of PAF (LV side)
The separation mechanism of PAF-937M is shown in Table A3-1.
The cross section of the separation flange is shown in Figure A3-1.
The locations of separation springs, separation switches and separation connectors are shown in
Figure A3-2.
Table A3-1 Separation Mechanism of PAF-937M
Separation Method Separation Spring
Clamp Marman Clamp band
Others Separation Switch (micro switch)
Separation Connector
Band Catcher
Figure A3-1 Cross Section of Separation Flange around Separation Plane
0° line-marking
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[TOP VIEW]
Figure A3-2 Locations of Separation Springs ,Separation Switches and Separation Connectors on
Separation Flange (LV side)
A
B
Master Key
Master Key
B
A
+XB
+YB
(395)
[mm]
(395)
(48
0)
(48
0)
90°
180°
0°
270°
UMB1
UMB2
Separation ConnectorAttached Position
Separation ConnectorAttached Position
Marman Clamp BandSeparation Phase(90-270°)
Spring Actuators Position(12 positions Max)
Separation Sensor on SCContacted Position
Low Shock Separation Mechanism (LSSM)
Band Catcher(10 positions)
Separation Sensor on SCContacted Position
Separation Sensor on LV
Separation Sensor on LV
Separation Connector
Separation Switch on PL side
YB
Separation Switch on PL side
Separation Spring
Separation Switch on LV side
ZB
Separation Switch on LV side
Separation Connector
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(2) PL’s Rear Frame
The load applied to PL’s rear flame by a separation spring during PL/LV mating dose not exceed 1,400
N.
PL’s rear frame shall satisfy the following requirements.
Material : Aluminum alloy
Area : A ≧ 347.3 [mm2]
Moment of inertia of area : Izz ≧ 16130.1 [mm4], Iyy ≧ 12365.2 [mm4]
Length : L = 25 [mm]
PL’s rear frame and PAF’s separation flange are joined by a Marman clamp band. Its typical
specifications are as follows:
Tension : 18 [kN] or less
(temporarily rises up to 35 kN during clamping work.)
Phase of Separation Mechanism Location: 90° (in LV coordinate system)
The details of PL’s rear frame are described in ICD.
The typical examples are shown as follows:
・Cross section of PL’s rear frame around the separation plane : Figure A3-3
・Contact surface with an LV separation spring : Figure A3-4
*XB: the longitudinal axis of LV body (See Chapter 2.2)
Figure A3-3 Typical Cross Section of PL’s Rear Frame around Separation Plane
R5.1±0.5
R2.28±0.25
R0.7±0.25
XB
0°位相のフランジ端面にけびき線を施工のこと
0° line
marking
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Figure A3-4 Typical Contact Surface with LV Separation Spring
衛星分離面
Φ825.5
分離スプリング接触面中心
φ70
Separation plane
Center of the contact surfacewith a LV Separation spring
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(3) Material for Mating Section
The standard material for the mating section is shown in Table A3-2.
Table 4-2 Material for Mating Section
PL side LV side
Aluminum alloy Aluminum alloy
(4) Coating on Mating Section
The standard coating on the mating section is shown in Table 4-3.
Table 4-3 Coating on Mating Section
PL side LV side
Chemical Conversion Coating
MIL-C-5541 class 3
Chemical Conversion Coating
MIL-C-5541 class 3
(5) Separation Connector
The side view of a separation connector after mating are shown in Figure A3-5.
The layout of PL’s separation connectors on the YB-ZB plane are shown in Figure A3-6.
Insert normal and clocking (keying) positions of PL’s separation connectors are also shown in Figure
A3-6. If any change is needed, contact your Program Director.
The specifications of separation connectors are described in the next chapter A4.
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Figure A3-5 Side View of Mated Separation Connector
Figure A3-6 Layout and Insert Normal/Clocking Positions of PL’s Separation Connectors
(64.
15±
0.2m
mfr
om
sep
arat
ion
plan
e)
Che
ck d
imen
sion
afte
r m
atin
g12
.65±
0.9m
m
MA
TED
UN
MA
TED
SC sideDBAS70-61
LV sideDBAS79 61
Reference Plane Reference Plane
In the case ofPanel Front Mount
In the case ofPanel Rear Mount
Che
ck d
imen
sion
afte
r m
atin
g(S
et d
epen
ds o
n cu
stom
er’s
des
ign)
MA
TED
(64.
15±
0.2m
mfr
om
sep
arat
ion
plan
e)
UMBJ1
UMBJ2
0°
270° 90°
180°
+XB
+YBDBAS70 61-0SN-090DBAS70 61-0SY-090
Insert Clocking Position(Insert vertical axis is in
the clocking position Y**)
Master Key
Master Key
[BOTTOM VIEW]
*Though the dimension tolerance of the center of separation connectors is needs to design SC for the customer, these dimensions are reference value because it is difficult to measure. Compatibility will be confirmed at the Fit check.**use 2 separation connecters having different type of insert for prevention connecting UMBJ1 and UNBJ2 alternately.
(395±0.5mm) *
(4
80±
0.5m
m)*
(395±0.5mm) *
(4
80±
0.5m
m)*
UMBJ2
UMBJ1
Insert Clocking Position(Insert vertical axis is in the normal position**)
PL side
D
ista
nce aft
er
mating
(depends on P
L panel
thic
kness)
*The dimension tolerance of the center should be taken into consideration for PL design; however, due to difficulty in precise measurement, these figures are just for reference. The compatibility is confirmed by Fit Check. **The 2 separation connectors UMBJ1 and UMBJ2 are different in insert keying/clocking position to prevent incorrect connection.
YB
ZB Insert Clocking Position:
Y (75°): The insert is
rotated 75° clockwise.
Insert Normal Position:
N (0°)
Master keyway
Dis
tance
aft
er
ma
tin
g
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(6) Separation Switch (Micro Switch)
Separation switches, which detect PL/LV separation status, are installed on LV side (PAF). More
switches can be mounted on PL side (PL rear frame) if needed. The standard number of the switches is 2
for each side.
The standard specifications of the separation switch are shown in Table A3-4.
The position of PL separation switch (if needed) and its contact surface on LV side are shown in Figure
A3-7.
The position of LV separation switch and its contact surface on PL side are shown in Figure A3-8.
Table A3-4 Standard Specifications of Separation Switch
Parts No. Force (minimum) Force (maximum)
M8805/80-01
after separation 17.8 [N] (stroke 0 [mm]) 53.3 [N] (stroke 0 [mm])
before separation 35.1 [N] (stroke 2 [mm]) 103.6 [N] (stroke 4 [mm])
※The ”stroke” is the distance between the top of switch in pressed position and that in unpressed
position. The distance is 0 [mm] when the switch is unpressed.
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PL side
LV side
Figure A3-7 Position of Separation Switch on PL side and Contact Surface on LV
衛星分離面
φ864
3±0.
5ストローク
3±1
自由長
ロケット側受け面
Separation plane
stro
ke
Free Length
SeparationSwitch for SC
Contact Surface on PL
ロケット側受け面
衛星分離面
φ864
3±
0.5
衛星側分離スイッチ
Separation plane
SeparationSwitch for SC
Contact Surfaceon PL
PL
PL
LV
LV
PL
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PL side
LV side
Figure A3-8 Position of Separation Switch on LV side and Contact Surface on PL
ロケット側分離スイッチ
衛星分離面
φ864
7±0.
5
衛星側受け面
Separation plane
SeparationSwitch for LV
Contact Surface on SC
ロケット側分離スイッチ
衛星側受け面
衛星分離面
φ864
7±
0.5
ストローク
3±1
自由長
Separation plane
SeparationSwitch for LV
Free LengthContact Surfaceon SC
stro
ke
PL
PL
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(7) Separation Spring
Table A3-5 shows the number of separation springs. The number will be decided by LSP according to
the mass of PL and the separation speed that varies for the LV configuration. The locations of separation
springs are shown in Figure A3-2.
If Customer requires any change in the number and location, contact your Program Director.
The load applied to PL’s rear flame by a separation spring during PL/LV mating is specified in Section
(1).
Table A3-5 Number of Separation Springs
LV Configuration Nominal Separation
Speed Number of Separation Spring
Optional with PBS 0.5 m/s 4
Basic without PBS 2.0 m/s 4, 8 or 12
(Depends on the PL mass)
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A4. Electrical Interface
A4. 1 Separation Connector
The standard characteristics of the separation connector are shown below.
The two separation connectors (UMB1 & UMB2) are different in keying/clocking to prevent incorrect
connection.
(1) Part Number
The part numbers of the separation connectors are shown in Table A4-1.
Table A4-1 Part numbers of Separation Connectors
Connector
Identification
Part No. Manufacturer
PL side 1 UMBJ1 DBAS70 61-0SN-090 DEUTSCH
PL side 2 UMBJ2 DBAS70 61-0SY-090 DEUTSCH
LV side 1 UMBP1 DBAS79 61-0PN DEUTSCH
LV side 2 UMBP2 DBAS79 61-0PY DEUTSCH
(2) Location
See Figure A3-2.
(3) Shield Requirements
Shield requirements for the back shells and I/F harnesses are shown below.
Table A4-2 Shield Requirements
Shield Requirements
Back shell N/A
I/F harnesses dependent on signals
(4) Procurement
PL side connectors are provided by Customer, and LV side ones by LSP.
(5) Pin Assignment
The pin assignments of the separation connectors are determined for Customer. Table A4-3 and
Table A4-4 show the typical pin assignments.
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Table A4-3 Typical Pin Assignment of UMBP1
UMBP1 (Power)
Pin No. Signal Name
24 Power 1 (1)
58 Power 1 RTN (1)
44 Power 1 (2)
35 Power 1 RTN (2)
3 Power 1 (3)
57 Power 1 RTN (3)
11 Power 1 (4)
34 Power 1 RTN (4)
25 Power 1 (5)
17 Power 1 RTN (5)
45 Power 1 (6)
6 Power 1 RTN (6)
4 Power 1 (7)
55 Power 1 RTN (7)
12 Power 1 (8)
56 Power 1 RTN (8)
26 Power 1 (9)
33 Power 1 RTN (9)
46 Power 1 (10)
16 Power 1 RTN (10)
22 Power 2 (1)
60 Power 2 RTN (1)
42 Power 2 (2)
37 Power 2 RTN (2)
9 Power 2 (3)
59 Power 2 RTN (3)
23 Power 2 (4)
36 Power 2 RTN (4)
43 Power 2 (5)
19 Power 2 RTN (5)
10 Power 2 (6)
18 Power 2 RTN (6)
40 Power 2 (7)
61 Power 2 RTN (7)
41 Power 2 (8)
38 Power 2 RTN (8)
51 Separation Status
52 Separation Status RTN
47 SHIELD
54 SHIELD
48 Power 3 (Low Power)
53 Power 3 (Low Power) RTN
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Table A4-4 Typical Pin Assignment of UMBP2
UMBP2 (signal)
Pin No. Signal Name Pin No. Signal Name
2 Signal 1 49 Signal 19
8 Signal 1 RTN 50 Signal 19 RTN
7 Signal 2 5 Signal 20
19 Signal 2 RTN 6 Signal 20 RTN
18 Signal 3 13 Signal 21
36 Signal 3 RTN 14 Signal 21 RTN
17 Signal 4 22 Signal 22
35 Signal 4 RTN 46 Signal 22 RTN
47 Signal 5 9 Signal 23
48 Signal 5 RTN 10 Signal 23 RTN
57 SHIELD 11 Signal 24
58 SHIELD 12 Signal 24 RTN
3 Signal 6 30 Signal 25
4 Signal 6 RTN 56 Signal 25 RTN
25 Signal 7 45 SHIELD
26 Signal 7 RTN
27 Signal 8
28 Signal 8 RTN
15 Signal 9
31 Signal 9 RTN
16 Signal 10
32 Signal 10 RTN
20 Signal 11
39 Signal 11 RTN
21 Signal 12
40 Signal 12 RTN
33 Signal 13
34 Signal 13 RTN
41 Signal 14
42 Signal 14 RTN
37 Signal 15
38 Signal 15 RTN
60 Signal 16
61 Signal 16 RTN
55 SHIELD
23 Signal 17
24 Signal 17 RTN
43 Signal 18
44 Signal 18 RTN
51 Separation Detection
52 Separation Detection RTN
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A4. 2 Separation Switch
For electrical interfaces of separation switches, refer to the specification sheet of M8805/80-01.