ESA Document - Emits - ESA
ESA Document - Emits - ESA ESA Document - Emits - ESA
s HMM Assessment Study Report: CDF-20(A) February 2004 page 318 of 422 • SHM to MAV The hatch diameter is sized to about 800 mm. The hatch will potentially require latch and seal mechanisms. Mass estimates shall be realised using a ‘simple geometry’ model. The astronaut enters the EVA suits via a hatch in the airlock wall. Once the astronaut is ready, the airlock hatch door is closed which also closes the EVA suit by closing and sealing the life support back-pack unit. Once the suit has been verified as sealed, the suit is released from its mounting on the outside of the SHM module. Exiting the suit is the reverse process. The suit is first latched to the SHM outer wall at the location of the hatch. The hatch is then opened, which opens the rear of the EVA suit allowing the astronaut to exit the suit. The mass of such a device has been estimated. No detail design has been considered. 4.3.8.3.2 Vehicle separation The separation of the MAV from the SHM prior to launch shall be realized with a pyrotechnic operated clamp-band of about 1.5 m. 4.3.8.3.3 Bio-lock quarantine facility This is a circular enclosure, integral to the SHM outer wall, which houses the individual bio-lock facilities. The enclosure will provide a sealed area allowing the application of the explosive seal to the container and providing a quarantine volume to allow for seal verification. The quarantine volumes are shown in Table 4-24: OD (mm) ID (mm) Ext. Length Int. Length Material Unit Mass (mm) (mm) (Kg) 360 (volume) 350 270 250 Ti 15.4 200 (lid) 50 Ti 7 4.3.8.3.4 Landing system lock Table 4-24: Quarantine volume This device will block the damping system of the legs due to reentry loading on the heat shield mounted to the landing system feet. No specific design has been considered. A mass estimate was used. 4.3.8.3.5 Communication antenna Current APM systems are able to meet the pointing requirements for the antenna. A suitable unit has been chosen and an estimate of the deployable boom mass has been made. 4.3.8.4 Budgets
s HMM Assessment Study Report: CDF-20(A) February 2004 page 319 of 422 Element 2: Surface Habitation Module MASS [kg] DIMENSIONS [m] Unit Element 2 Unit Name Quantity Mass per Maturity Level Margin Total Mass Dim1 Dim2 Dim3 Click on button below to insert new unit quantity incl. margin Length Width Height 1 Antenna Pointing Mechanism 2 1.0 To be modified 10 2.2 0.15 0.15 0.15 2 Deployment Boom 2 2.0 To be modified 10 4.4 3 Hatch Door- Airlock 1 28.5 To be developed 20 34.2 0.9 4 Hatch Door Locking Mechanisms- Airlock 1 120.0 To be developed 20 144.0 0.95 0.8 0.05 5 Hatch Door- EVA Suit 4 34.20 To be developed 20 164.2 6 Hatch Door Locking Mechanisms- EVA Suit 4 144.0 To be developed 20 691.2 7 Sample Bio-Lock- Quarantine Chamber 10 22.4 To be developed 20 268.8 360.0 270.0 8 Clamp-band- SHM/MAV I/F 1 15.6 To be modified 10 17.2 1.2 9 APM Electronics 1 1.0 To be modified 10 1.1 10 Landing Leg Locking System 4 5.0 To be developed 20 24.0 - Click on button below to insert new unit To be developed 20 0.0 - ELEMENT 2 SUBSYSTEM TOTAL 10 1128.0 19.8 1351.3 Table 4-25: Mass budget Note that the masses stated for the EVA and egress hatch and locking mechanisms are bestestimate figures. Element 2: Surface Habitation Module PPEAK AND POWER SPECIFICATION PER MODE Unit Element 2 Unit Name Quantity Ppeak DESM DESM DESM SDAYM SDAYM SDAYM SNGM SNGM SNGM Click on button below to insert new unit Pon Pstby Dc Pon Pstby Dc Pon Pstby Dc 1 Antenna Pointing Mechanism 2 10.0 100.0 10.0 100.0 2 Deployment Boom 2 3 Hatch Door- Airlock 1 4 Hatch Door Locking Mechanisms- Airlock 1 5 Hatch Door- EVA Suit 4 6 Hatch Door Locking Mechanisms- EVA Suit 4 7 Sample Bio-Lock- Quarantine Chamber 10 8 Clamp-band- SHM/MAV I/F 1 9 APM Electronics 1 5.0 100.0 5.0 100.0 10 Landing Leg Locking System 4 - Click on button below to insert new unit - ELEMENT 2 SUBSYSTEM TOTAL 10 0.0 0.0 0.0 15.0 0.0 15.0 0.0 4.3.8.5 Options Table 4-26: Power budget Further study of the lock and sealed I/F of the externally mounted EVA suits is required. Suitable decontamination methods need to be considered to guarantee no contamination can enter the habitable volume. 4.3.9 Sample handling 4.3.9.1 Requirements and design drivers The following requirements are imposed upon the samples and the sample handling systems 1 COSPAR Planetary Protection rules apply: • Category V applicable- In summary the following text applies: • Category V missions comprise all Earth-return missions. The concern for these missions is the protection of the terrestrial system, the Earth and the Moon. For Category V missions, in a subcategory defined as “restricted Earth return,” the highest degree of concern is expressed by the absolute prohibition of destructive impact upon return, the need for containment throughout the return phase of all returned hardware which directly contacted the target body or un-sterilzed material from the body, and the need for containment of any un-sterilised sample
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s<br />
HMM<br />
Assessment Study<br />
Report: CDF-20(A)<br />
February 2004<br />
page 319 of 422<br />
Element 2: Surface Habitation Module<br />
MASS [kg]<br />
DIMENSIONS [m]<br />
Unit Element 2 Unit Name<br />
Quantity Mass per Maturity Level Margin Total Mass Dim1 Dim2 Dim3<br />
Click on button below to insert new unit<br />
quantity<br />
incl. margin Length Width Height<br />
1 Antenna Pointing Mechanism 2 1.0 To be modified 10 2.2 0.15 0.15 0.15<br />
2 Deployment Boom 2 2.0 To be modified 10 4.4<br />
3 Hatch Door- Airlock 1 28.5 To be developed 20 34.2 0.9<br />
4 Hatch Door Locking Mechanisms- Airlock 1 120.0 To be developed 20 144.0 0.95 0.8 0.05<br />
5 Hatch Door- EVA Suit 4 34.20 To be developed 20 164.2<br />
6 Hatch Door Locking Mechanisms- EVA Suit 4 144.0 To be developed 20 691.2<br />
7 Sample Bio-Lock- Quarantine Chamber 10 22.4 To be developed 20 268.8 360.0 270.0<br />
8 Clamp-band- SHM/MAV I/F 1 15.6 To be modified 10 17.2 1.2<br />
9 APM Electronics 1 1.0 To be modified 10 1.1<br />
10 Landing Leg Locking System 4 5.0 To be developed 20 24.0<br />
- Click on button below to insert new unit<br />
To be developed 20 0.0<br />
-<br />
ELEMENT 2 SUBSYSTEM TOTAL<br />
10 1128.0 19.8 1351.3<br />
Table 4-25: Mass budget<br />
Note that the masses stated for the EVA and egress hatch and locking mechanisms are bestestimate<br />
figures.<br />
Element 2: Surface Habitation Module<br />
PPEAK AND POWER SPECIFICATION PER MODE<br />
Unit Element 2 Unit Name Quantity Ppeak DESM DESM DESM SDAYM SDAYM SDAYM SNGM SNGM SNGM<br />
Click on button below to insert new unit Pon Pstby Dc Pon Pstby Dc Pon Pstby Dc<br />
1 Antenna Pointing Mechanism 2 10.0 100.0 10.0 100.0<br />
2 Deployment Boom 2<br />
3 Hatch Door- Airlock 1<br />
4 Hatch Door Locking Mechanisms- Airlock 1<br />
5 Hatch Door- EVA Suit 4<br />
6 Hatch Door Locking Mechanisms- EVA Suit 4<br />
7 Sample Bio-Lock- Quarantine Chamber 10<br />
8 Clamp-band- SHM/MAV I/F 1<br />
9 APM Electronics 1 5.0 100.0 5.0 100.0<br />
10 Landing Leg Locking System 4<br />
- Click on button below to insert new unit<br />
-<br />
ELEMENT 2 SUBSYSTEM TOTAL<br />
10 0.0 0.0 0.0 15.0 0.0 15.0 0.0<br />
4.3.8.5 Options<br />
Table 4-26: Power budget<br />
Further study of the lock and sealed I/F of the externally mounted EVA suits is required. Suitable<br />
decontamination methods need to be considered to guarantee no contamination can enter the<br />
habitable volume.<br />
4.3.9 Sample handling<br />
4.3.9.1 Requirements and design drivers<br />
The following requirements are imposed upon the samples and the sample handling systems<br />
1 COSPAR Planetary Protection rules apply:<br />
• Category V applicable- In summary the following text applies:<br />
• Category V missions comprise all Earth-return missions. The concern for these<br />
missions is the protection of the terrestrial system, the Earth and the Moon. For<br />
Category V missions, in a subcategory defined as “restricted Earth return,” the<br />
highest degree of concern is expressed by the absolute prohibition of destructive<br />
impact upon return, the need for containment throughout the return phase of all<br />
returned hardware which directly contacted the target body or un-sterilzed<br />
material from the body, and the need for containment of any un-sterilised sample