Embed Size (px)
Citation preview
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 2/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
CHANGE RECORDS Paragraphs Change Record (List of paragraphs modified, new or deleted)
Issue Date Change Record Description Author
01 04/07/13 Initial Issue Statistics:
C. MEULAND
Requirements Change Record (List of requirements modified, new or deleted, sorted by ascending document issue)
Issue § PUID Status Reason of change CR Requirement Diff
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 3/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
DISTRIBUTION LIST
Company Name
ESA
KT
OHB
TAS
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 4/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
TABLE OF CONTENTS
1. INTRODUCTION..................................................................................................................................................6
1.1 Purpose ......................................................................................................................................................6
1.2 Field of application....................................................................................................................................6
1.3 Rules for the writing of the document ....................................................................................................6
2. GENERAL PRESENTATION OF THE FCI & IRS CRYOSTATS THERMAL LINKS ASSEMBLIES................7
2.1 Perspectives of the FCI & IRS Cryostats Thermal Links Assemblies..................................................7
2.2 Definition of the market ............................................................................................................................7
2.3 Definitions of the functions of the FCI & IRS Cryostats Thermal Link Assemblies ...........................7
2.4 Reference frames ......................................................................................................................................7
3. DOCUMENTARY REFERENCE SYSTEM..........................................................................................................8
3.1 Applicable documents ..............................................................................................................................8
3.2 Applicable Norms and Standards............................................................................................................8
3.3 Reference documents...............................................................................................................................8
3.4 Document tree ...........................................................................................................................................8
3.5 Order of precedence .................................................................................................................................9
4. TERMS, DEFINITIONS, ABBREVIATED TERMS AND SYMBOLS ................................................................10
5. SYSTEM ARCHITECTURE AND DEFINITIONS ..............................................................................................11
5.1 Links designation....................................................................................................................................11
5.2 Thermal contacts faces designation: ....................................................................................................12
5.3 Thermal conductance definition............................................................................................................12
6. PHYSICAL REQUIREMENTS...........................................................................................................................13
6.1 Mass..........................................................................................................................................................13
6.2 Allocated volume.....................................................................................................................................14
6.3 Stiffness ...................................................................................................................................................14
7. MECHANICAL & THERMAL INTERFACES.....................................................................................................15
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 5/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
Table of Figures
FIGURE 1 : FCI TLA PRESENTATION ..................................................................................................11 FIGURE 2 : IRS TLA PRESENTATION..................................................................................................11
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 6/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
1. INTRODUCTION
1.1 Purpose
This Interface Requirement Document (IRD) deals with the FCI & IRS Cryostats Thermal Links Assembly (TLA), to be provided to THALES ALENIA SPACE (the CUSTOMER) as part of the following instruments, Flexible Combined Imager (FCI) and Infra-Red Sounder (IRS), part of the contract METEOSAT THIRD GENERATION (MTG). The IRD constitutes the second technical appendix of a contract that links the CONTRACTOR to the CUSTOMER. It is a document that expresses the needs of the product that THALES ALENIA SPACE wishes to acquire. The IRD specifies the services that the product shall provide to its users. In particular, it describes the interface constraints that the product shall meet. The CONTRACTOR shall provide a product that shall be compliant with the CUSTOMER requirements described in this IRD. The validation of the product shall be performed according to the IRD. On the technical point of view, the acceptance of the product shall be based on criteria that are defined in relation to the IRD.
1.2 Field of application
This document is applicable to the CUSTOMER and to the teams of the CONTRACTOR charged with designing, developing, integrating, verifying and validating the product FCI & IRS Cryostats TLA, depending of the responsibility perimeter requested in the RFQ cover letter. Consequently this IRD covers both possibilities. The IRD is used during all the development phases up to the acceptance of the product by CUSTOMER.
1.3 Rules for the writing of the document
Unless otherwise specified in the requirement text, this document use international standards units such as: • meter (m) is the unit of size, • second (s) is the unit for time, • euro (€) is the unit for cost, • kilogram (kg) is the unit for weight or mass, • degree Celsius (°C) is the unit for temperature, • cube meter (m3) is the unit for volume.
The text which is not labelled shall be considered as an explanation, which may be needed for better reader understanding and can help to clarify possible different interpretation, although it should be aimed that all requirement are worded as unambiguous, and verifiable. A labelling convention is used throughout this document.
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 7/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
2. GENERAL PRESENTATION OF THE FCI & IRS CRYOSTATS THERMAL LINKS ASSEMBLIES
2.1 Perspectives of the FCI & IRS Cryostats Thermal Links Assemblies
The FCI & IRS Cryostats TLA are parts of the cryogenic chain of the MTG FCI and IRS instruments. The FCI & IRS Cryostats TLA allow to connect the infer-red detectors with the cold fingers of the compressors in order to cool down at cryogenic temperatures the infra-red detectors and the focal planes with a minimum of gradient.
2.2 Definition of the market
METEOSAT THIRD GENERATION is inscribed within new projects conducted by the European Space Agency. All ESA technical standards will be used to study, develop, manufacture and validate the models. All European rules, laws and directives will be applied to this project.
2.3 Definitions of the functions of the FCI & IRS Cryostats Thermal Link Assemblies
The FCI & IRS Cryostats TLA allow to connect the infra-red detectors with the Cold Fingers Cold Tips of cryogenic coolers with a minimum of gradient with the capability to be assemblied and disassemblied at ambient temperature.
2.4 Reference frames
# Reference [MTG-II-TLA-CRY-IRD-REQ-001]
The Reference Frames defined in [AD-03-IITLA-01] shall be used.
*
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 8/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
3. DOCUMENTARY REFERENCE SYSTEM
This chapter provides the list of applicable and reference documents.
3.1 Applicable documents
Refer to list provided within the dedicated FCI & IRS TLA Specific SOW, document reference MTG-TAS-F-II-SW-2450.
3.2 Applicable Norms and Standards
Refer to list provided within the dedicated FCI & IRS TLA Specific SOW, document reference MTG-TAS-F-II-SW-2450.
3.3 Reference documents
Source document are the input of the present document. If one of these documents is updated, relevant requirements in the present document may change accordingly. ID DRL ref Title Reference RD01 MTG FCI Cryostat User Requirements Document (URD) MTG-TAS-F-CI-RS-0810 RD02 MTG FCI Cryostat Interface Requirements Document (IRD) MTG-TAS-F-CI-IS-0811 RD03 MTG IRS DEA User Requirements Document (URD) MTG-KT-IR-RS-0006 RD04 MTG IRS DEA Interface Requirements Document (IRD) MTG-KT-IR-RS-0001
3.4 Document tree
Refer to SOW.
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 9/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
3.5 Order of precedence
The TRD specifies the solution that has been selected by the contractor to cover THALES ALENIA SPACE needs (cf. URD and IRD) and the development of the product is performed according to the TRD requirements. Any detected inconsistency between TRD and IRD shall be transmitted to THALES ALENIA SPACE for its treatment. For the contractual point of view with respect to THALES ALENIA SPACE, by lack of precision, the IRD has precedence on the TRD.
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 10/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
4. TERMS, DEFINITIONS, ABBREVIATED TERMS AND SYMBOLS
All acronyms and abbreviations are listed in document [AD-26C-01]. Specific terminology: TLA : Thermal Link Assembly
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 11/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
5. SYSTEM ARCHITECTURE AND DEFINITIONS
5.1 Links designation
The Thermal Links Assembly joins the 2 Cold Tips to the Detectors with an additional point on the focal plane. The number of detectors is equal to 2 for IRS (LWIR Detector & MWIR Detector) and 4 for FCI (IR1 DA, IR2 DA, IR3 DA & NIR DA). The additional interface available on the Cold Plate (CP) for FCI and on the Cold Box (CB) for IRS can also be a mechanical one in order to allow compliance wrt Detectors and Cold Tips reduced loads constraints.
T_CT1 T_CT2
T_IF
T_CT1 T_CT2
T_IR1 T_IR2 T_IR3 T_IR4 T_CP
Figure 1 : FCI TLA presentation
Figure 2 : IRS TLA presentation
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 12/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
5.2 Thermal contacts faces designation:
Each thermal contact face of the end-fitting of TLA are designated as follows (see figures): - Thermal contact between TLA / Cold Tips : TLA-CT-(N°CT).(N°Face)
� At Cold Tip 1 side : � TLA-CT-1.1 & TLA-CT-1.2, � At Cold Tip 2 side : � TLA-CT-2.1 & TLA-CT-2.2,
- Thermal contact between TLA / Detectors: TLA-DA-(DA Name) � For FCI : TLA-DA-IR1, TLA-DA-IR2, TLA-DA-IR3, TLA-DA-NIR, � For IRS : TLA-DA-LWIR & TLA-DA-MWIR
- Thermal Contact between TLA / Cold Plate or Cold Box : � For FCI : TLA-CP, � For IRS : TLA-CB.
Nota: Thermal contact faces exact definitions and localizations are given in appendix.
5.3 Thermal conductance definition
Thermal conductance (including contact conductance) between two thermal contact faces is to be understood as the transiting flux divided by the difference between average temperatures of each face. For thermal contact at Cold Tip sides, a single average will be made for TLA-CT-1.1 and TLA-CT-1.2 and for TLA-CT-2.1 and TLA-CT-2.2.
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 13/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
6. PHYSICAL REQUIREMENTS
6.1 Mass
# Reference [MTG-II-TLA-CRY-IRD-REQ-002]
Total mass for the TLA, including end-fittings, screws and their compensation system (if needed), shall be less than:
- For FCI: 0,320 Kg (TBC), - For IRS: 0,245 Kg (TBC).
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-003]
The suspended mass of TLA at each Cold Tip interface shall include: - the mass of TLA/Cold Tip end-fitting with its associated screws and (if needed) compensation system, - the half-mass of the flexible part of the TLA.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-004]
The maximal suspended mass of TLA at each Cold Tip interface shall be less than 0,075Kg (TBC).
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-005]
The suspended mass of TLA at each detector interface shall include: - the mass of TLA/Detector end-fitting with its associated screw and (if needed) compensation system, - the half-mass of the flexible part of the TLA.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-006]
The maximal suspended mass of TLA at each detector interface shall be less than: - For IRS : 0,047Kg (TBC), - For FCI : N/A (TBC).
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-007]
Mass Center Inertia (MCI) budget for the TLA shall be provided by the supplier in the reference frames defined in §2.4 with a detailed mass budget presentation including:
- Total mass, - Suspended mass,
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 14/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
- Detailed mass by component (TLA, screws, compensation system,…).
*
6.2 Allocated volume
# Reference [MTG-II-TLA-CRY-IRD-REQ-008]
During overall life cycle (AIT sequence, launch, operational life), the Thermal Links Assemblies shall comply with the following interface drawings presented in Annex:
- For FCI: o MTIA240S011FA Ed 00 (Sheets 01 to 04) : IRD THERMAL LINK
- For IRS: o MTSA54FS023FA Ed 00 (Sheets 01 to 07) : IRD THERMAL LINK o MTSA54FS035FA-00-37573-416A-CoG-OF-IRS-STLA : CoG of IRS STLA
Any deviation must be submitted to the TLA Prime before approval.
*
6.3 Stiffness
# Reference [MTG-II-TLA-CRY-IRD-REQ-009]
The Thermal Links Assemblies stiffnesses shall be in accordance with the stiffnesses defined in [AD03-IITLA-01]
*
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 15/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
7. MECHANICAL & THERMAL INTERFACES
# Reference [MTG-II-TLA-CRY-IRD-REQ-010]
The TLA design shall be consistent with the Interface Control Drawings presented in Annex.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-011]
The mechanical interface between the TLA and the Detector Interfaces shall be performed with the FCI & IRS Detector package materials defined as follows:
- FCI : Detector package in Kovar with nickel and gold coatings, - IRS: Detector package in Molybdenum.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-012]
Flatness at all TLA thermal contact faces with the Cold Tip shall be better than 10µm.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-013]
Roughness at all TLA thermal contact faces with the Cold Tip shall be less than 0.4µm.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-014]
Flatness at all TLA thermal contact faces with the Cold Plate (FCI) or Cold Box (IRS) shall be better than 10µm.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-015]
Roughness at all TLA thermal contact faces with the Cold Plate (FCI) or Cold Box (IRS) shall be less than 0.4µm.
*
# Reference [MTG-II-TLA-CRY-IRD-REQ-016]
All contact faces for TLA shall be finished with a 5µm thick gold-coating (TBC).
*
REFERENCE :
MTG-TAS-F-II-IRD-2452
DATE : 04/07/2013
ISSUE : 1 Page : 16/16
THALES ALENIA SPACE INTERNAL This document is not to be reproduced, modified, adapted, published, translated in any material form in whole or in part nor disclosed to any third party without the prior written permission of
Thales Alenia Space.
2013, Thales Alenia Space Template 83230326-DOC-TAS-EN/002
END OF DOCUMENT
