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PACS IBDR

PACS IBDR. Model Philosophy / Development Plan. Reinhard Katterloher. Development Program. Flight Instrument consists of 1 cryogenic FPU, 6 electronics boxes at ambient, 1 set of WIH Development program and verification of Units is taken care by the individual manufacturers

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PACS IBDR

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  1. PACS IBDR Model Philosophy / Development Plan • Reinhard Katterloher System Engineering

  2. Development Program • Flight Instrument consists of 1 cryogenic FPU, 6 electronics boxes at ambient, 1 set of WIH • Development program and verification of Units is taken care by the individual manufacturers • For each Unit a dedicated Development and Test Plan (covering all AIV activities) is issued and enforced • Qualification program is • On Unit level performed by the individual suppliers of the Unit • On Instrument level performed by MPE • Delivery Reviews and Incoming Inspections will be held • AIV on instrument level starts with delivery of Units System Engineering

  3. Instrument Verification 2 documents specify the now starting AIV activities on Instrument Level, they are considered as the in time extension of the basic DDVP PACS-ME-PL-002 • Instrument Test Plan,covers all test activities and all test related AIV, shows the verification control matrix w.r.t. instrument models and instrument performance; PACS-ME-PL-012 iss.1 • Instrument AIV Plan, describes general assembly organization, integration concept and integration sequences, but does not include the ILT related details; PACS-ME-PL-018 iss.1 System Engineering

  4. Development Status • Baseline Design of all Units is ready(results are topic of IBDR) • Interface Control Documents issued and under configuration control • FPU Thermal Mathematical Model available(results under separate agenda point) • FPU Structural Analysis / Load Analysis performed,(results under separate agenda point) • FPU contamination risk and degradation analysis done • FPU manufacture has started System Engineering

  5. current IID-B status • 15 CRs w.r.t. IID-B 2/0 incl. CR amendments were submitted to Project, more than 50% approved yet, in few cases further clarifications or add-ons required, then approval can be expected • Further CRs identified, will be submitted soon or need input from Project before they can be specified (e.g., thermal budget) • 1 RFW concerning application of notches during cryogenic vibration submitted, approval under way System Engineering

  6. Model Philosophy (deliverables to ESA are marked in blue) System Engineering

  7. Functional Properties of Units delivered to MPE System Engineering

  8. Unit Configurations during ILT Phases System Engineering

  9. CQM Characteristics compared to PFM • FPU CQM is nearly a fully flight representative FPU Unit • Complete optics, all mechanisms, all sensors • Blue spectrometer array: 12 modules of 25 • Red spectrometer array: 12 modules of 25 • Blue photometer array: 8 sub-arrays (2 near perfo.) of 8 • Red photometer array: 2 sub-arrays (1 near perfo.) of 2 • Full CQM characterization and calibration program can be executed in principle • EMC tests on system level (EQM) quite informative • AVM electronics built with commercial grade components, no redundancy, DECMEC, BOLC and SPU are at present not form fit System Engineering

  10. Pending activities • Qualification program of black paint to be finished • Qualification program of CERNOX temperature sensors to be performed with assistance from Project • few NCRs on FPU issues to be closed • Definition of details of test sequences, test steps and procedures for the different ILTs to be started now System Engineering

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