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FPU Structure, Baffle and Straylight. R. Graue, D. Kampf Kayser-Threde. Field Mirror for Spectrometer. Collimator housing. Photometer housing. Alignment Cube. Blue Spectrometer Connector Panel. Top Optics housing. 4 K Thermal Strap. Entrance to FPU. Bolometer housing. 2 K

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Fpu structure baffle and straylight

FPU Structure, Baffle and Straylight

R. Graue, D. Kampf

Kayser-Threde

PACS FPU


Primary structure

Field Mirror for

Spectrometer

Collimator housing

Photometer housing

Alignment Cube

Blue Spectrometer

Connector Panel

Top Optics housing

4 K Thermal Strap

Entrance to

FPU

Bolometer

housing

2 K

Feed Thru

FPU foot

2 axis

Red Spectrometer

Connector Panel

Spectrometer housing

FPU foot

1 axis

Primary Structure

Chopper Cover

PACS FPU


Fpu stm
FPU STM

PACS FPU



Straylight analyses top optic model
Straylight Analyses – Top Optic Model

  • ASAP Model of Top Optics

  • Derived from optical ZEMAX Model

  • Black Coated Walls (>0.4 mm)

PACS FPU


Straylight analyses results and status
Straylight Analyses – Results and Status

  • High straylight suppression

  • Neglible straylight impacts in consequent boxes

  • Inputs considered for Baffle Design

  • Straylight suppression 1e-10 to focal plane

  • Modell delivered to ASTRIUM

PACS FPU


2k feed through
2K - Feed Through

  • Cryo STM Vibration Tested

  • Manufactured and Delivered

Outside sleeve

Cold finger

D/E: Retainer ring 1/2

F: Muff

G: Ring

PACS FPU


Fpu suspension design status and material
FPU Suspension Design Status and Material

  • Status:

    • Design: completed

    • Documentation: Completed

  • Material

    • Fibre: T300

    • Resin: Ciba Geigy

      • Araldit LY-3505

      • Hardener XP 3403

PACS FPU


Fpu suspension cryo qualification test matrix
FPU Suspension Cryo Qualification Test Matrix

  • Status

  • Static load tests: completed

  • (Cold) material characterisation: completed

  • Cryovibration tests: complete (CRYO STM FPU)

PACS FPU


Mgse and cvse status
MGSE and CVSE Status

  • MGSE design, procurement and functional test completed

    • Vibration test adapter

    • Lifting device

    • Integration Tools

    • FW Test Box

  • CVSE design, procurement (cryostat) and functional test completed

KT Cryostat Test Faciliy for Stability Tests

PACS FPU


Mass budget
Mass Budget

*IR Black Paint, Internal Harness, Screws

Contingency not needed

PACS FPU



Pacs thermal model
PACS Thermal Model

PACS-Thermal Model (Input-Status: May 2003)

- PACS thermal model used as submodel of the H-EPLM reduced thermal model

- PACS submodel consists of 154 thermal nodes

PACS-TMM includes:

- All mechanisms, all harness, radiative environment

- Possibility of transient analysis (cool-down and operational time-line)

PACS FPU


Thermal analyses status completed tasks
Thermal Analyses - Status - Completed Tasks

  • Thermal Analyses

    • Quasisteady state and transient thermal analyses

    • Calibration of thermal model (cooling down curves) after Cryo STM tests

    • Analyses of thermal links (2 K) wrt conductivity

  • Documentation released

PACS FPU



Pacs thermal analyses open tasks
PACS Thermal Analyses - Open Tasks

  • - Update of the cryostat-TMM (Sept. 2003) not yet included

  • - Dissipation values of the grating and the calibration sources are no measured values

  • Impact of Electrical insulation between spectrometers and cooling-straps not yet defined

  • - Results of the discussion of the cooling-strap-IFs not yet included

  • - Contact resistances at the cooling-strap-I/Fs only assumed, but not measured

PACS FPU


Structural analyses status completed tasks see h o wrt stm warm cold vibration
Structural Analyses - Status - Completed Tasks(see H/O wrt. STM warm/cold vibration)

  • Structural Analyses

    • Evaluation of ambient and cold vibration tests

    • FEM calibration

    • Load analyses with calibrated model (cryo-vibration test)

    • Strength analyses for FPU metallic and CFRP components

    • Cryogenic material properties analyses

    • CoG, MoI analyses

    • Displacement, distortion, deformation analyses

  • Documentation released

PACS FPU


Fpu structure status external interfaces
FPU Structure Status – External Interfaces

  • Design envelope frozen

  • Optical beam stay out frozen

  • OB envelope frozen

     DCNs of Assembly and IF Drawing version 27 to be approved

PACS FPU


Documents status
Documents Status

  • ICDs

    • Chopper, FW, Calibration Source, Filters/

      Dichroics, Ga:Ga Detector, Grating: approved

    • Bolometer, Distribution Boards: approved

    • Cryogenic harness and connectors: approved

  • Procurement specifications (structures,

    mirror, coating, screws/helicoils, Si -lens,

    emitter for CS , etc.) approved

  • AIV and functional/environmental test plan: updated

  • Filled in verification matrix: latest status (10.2003)

PACS FPU




Pa activities kt
PA Activities (KT)

  • Approved Documents

    • PMP (Update)

    • CIDL (Update)

    • CIL (Issue1)

    • PA Plan (Update)

    • MIP/KIP plan (Update)

    • Inputs to FMECA (Update)

  • Approved procurement/manufacturing documentation/drawings

  • Configuration Control

PACS FPU


Mip kip list
MIP / KIP List

  • Inspection

    • FW assembly (CQM/PFM) after functional and environmental testing

    • Calibration source (CQM/PFM) after environmental and functional testing

    • Coated mirrors (CQM/PFM)

    • FPU after vibration tests (CQM/PFM)

    • Distribution boards and harness after manufacturing and functional testing (CQM/PFM)

  • Fit check inspection after manufacturing and coating of aluminium structure (STM/CQM/PFM)

  • Functional performance verification after FPU alignment (CQM/PFM)

PACS FPU


Maiv status of structural items completed tasks
MAIV Status of Structural Items -Completed Tasks

  • CQM

    • Mechanical items design and manufacturing drawings completed and released

    • STM/ CQM metallic items manufactured and IR black coated

    • Mechanical Fit check/Preintegration of all mechanical items (on boxes and FPU level)

    • STM/ CQM CFRP items manufactured and static load tested

    • Cooling straps manufactured

  • PFM

    • Structural items design and manufacturing drawings completed and released

    • CFRP items manufactured and static load tested

PACS FPU


Maiv status of structural items opentasks
MAIV Status of Structural Items - OpenTasks

  • CQM

    • Thermal Contact Soldering and Ge:Ga detector attachment (sapphire embedding) of CQM cooling straps in progress (until end of Nov. 2003)

    • Development of Ge:Ga Detector electrical isolation (thick layer coating) under progress (until end of Nov. 2003)

  • PFM

    • Substructures and metallic components manufacturing in progress until April 2004

    • Preassembly/fit check until June 2004

    • Finish and black Coating until July 2004

PACS FPU


Fpfpu cryo vibration qualification breakdown
FPFPU Cryo Vibration Qualification Breakdown

See dedicated chapters

PACS FPU


Pacs fpu verification
PACS FPU Verification

Similarity

  • CQM and STM were manufactured parallel with the same drawingsout of the same lot

    Qualification Tests

  • STM vibration tests

Tests completed

Conclusion:

FPFPU Housing is structurally qualified

PACS FPU


Cqm schedule
CQM SCHEDULE

  • Manufacturing

    • CQM primary/secondary structures thermal treatment /manufacturing /IR coating sequentially completed

    • CQMoptical components delivered

    • CQM CFRP struts and 2 K feed through material test program and manufacturing completed

  • AIV (Final assembly and alignment)

    • CQM from 7/03 to 1/04 (tbc)

PACS FPU


Pfm schedule
PFM SCHEDULE

  • Manufacturing

    • PFM primary/secondary structures thermal treatment /manufacturing /IR coating to be completed until 6.2004

    • PFM optical components delivered

    • PFM CFRP struts and 2 K feed through material test program and manufacturing completed

  • AIV (Final assembly and alignment)

    • PFM from 7/04 to 11/04

PACS FPU


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