RAMS activities – FMC Meeting – 05/07/2017

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1 RAMS activities – FMC Meeting – 05/07/2017
RAMS report Km3Net S.Colonges APC Quality division RAMS activities – FMC Meeting – 05/07/2017

2 Objectives Our Goal? Reach the highest reliability and safety possible level. Define maintenance and recovery plan Activities name (work package): RAMS: Reliability Availability Maintainability and Safety reliability Engineering Reliability is a continuous improvement (Deming wheel) Then the main support tool is FMECA and Brainstorming  All the people should be involved

3 Functional analysis Definition Architecture for Functional Analysis:
Name - (Example) Level 1: Infrastructure – (KM3NeT) Level 2: Structure - (ARCA-ORCA) Level 3: Equipment – (Link – Onshore- offshore) Level 4: System (offshore: Building block – link: General JB) Level 5: Subsystem (Secondary JB – DU) Level 6: Module (BOB – DOM – DU Base) Level 7: Assembly (Boards: PB, CLB, etc) Level 8: Subassembly (functions – PB rails, etc)  System engineer is needed...

4 Input: Schematic analysis
RAMS process Input: Schematic analysis Or spice simulation FIT: Failure In Time To come: one CIDL with the list of RAMS documents. RAMs documents: one Excel file per product. Inputs Outputs Analysis should be done for each infrastructure component

5 RAMS process and tools Output files: (Now integrated in RAMS analysis)
Part stress analysis Or NecatrCAM reliability models Or Assembly RAMS analysis Fides analysis RAMS analysis (excel file) (word document) RAMS report

6 RAMS process and tools 1 sheet / analysis step Functional analysis
Functional analysis sheet : Define functions, assemblies and quantities BOM import BOM sheet: Copy past of the BOM to analyse in BOM sheet. Select the name of assembly in column A Components FIT Components FIT sheet: Select reliability models for each BOM line, then sheet calculate FIT value Vs quantity for each line using FIT data sheet FIT Data FIT data sheet: Reliability models or specific components failure rate Calculated for product life profile with Fides or from manufacturer data using tool sheet Explications: -FMECA. Récupère automatiquement les données du tableau précédent. -Reliability audit: Outil comparateur. -Maintenance table. Récupération automatique des données de défaillance. La liste des composants est automatiquement copiée d’un onglet à l’autre.

7 RAMS process and tools Failure rate results FMECA Maintenance
1 sheet per analysis step Components results analysis sheet: sort by components Failure rate results sheet : Analyse by level of assembly. Select duration. Define redundancies. Define replaceable elements Compact results sheet: Allow display failure rate data for a selected product FMECA FMECA sheet: Select products to analyse for each line Define failure mode/effect Automatic failure rate import Maintenance Maintenance sheet: Select product Calculate needed resources Explications: -FMECA. Récupère automatiquement les données du tableau précédent. -Reliability audit: Outil comparateur. -Maintenance table. Récupération automatique des données de défaillance. La liste des composants est automatiquement copiée d’un onglet à l’autre.

8 RAMS process and tools Analysis is being done for each component of the camera One generic tool is developed at APC for the whole process FIT: Failure In Time To come: one CIDL with the list of RAMS documents. RAMs documents: one Excel file per product.

9 RAMS process and tools APC excel RAMS tool is the main tool for RAMS analysis to collect all data and analyse reliability : Allow to define all functions and assembly levels Allow to import bill of material Allow import FIT data (from Fides analysis “Excel_file_fides_result”, manufacturer, field data, or other handbooks) Audit process tool : to determine Pi Process (impact directly FIT data calculated with Pi Process = 1) Simplify and accelerate failure rate analysis using reliability models (generic components failure data calculated for the product life cycle): Example: Ceramic capacitor 10 µF – 10V for decoupling, rating 50% and not placed in interface could be selected as CAPA_CER_HCV_0,5_Typ2_NIP reliability model -Analyse failure rate / function / assembly / equipment… -FMECA analysis (with automatic failure occurrence and function relation import) -Maintenance table

10 Reliability data 2 main sources:
Manufacturer data (to be adjusted to product life profile) Handbooks (Fides is strongly recommended for KM3NET) Fides is now International Standard

11 RAMS process and tool One generic tool developed at APC : collect all data and analyse reliability Same template for different levels (sub-components / components / infrastructure) One sheet per step of analysis Automatic links between steps

12 RAMS process and tools List of sheets
Components BILL of material import Generic components FIDES data / Reliability models data (from Fides analysis) Customized results display Graphical functions display Sort components failure rates Tools (for analysis) Failures rates summary / function Explications: -Configuration : en-tête. -Tool : données constructeur pour générer des FIT. -Process factor: impact du process sur la fiab. -FIT Data: taux de défaillance des types de composant. C’est ici qu’intervient reliasoft ou Fides. -Functional Analysis: on donne la composition / groupes / quantités / fonctions / entrées /sortie. -SADT: Outil automatique à partir de l’analyse fonctionnelle. -Bill of material: Sur la base des composants présents dans l’analyse fonctionnel. -Component FIT: Calcule le FIT de chaque composant + Teste si on répond aux règles de dérating. Peut générer une modification du choix decomposant. -Component result analysis: Permet le classement des composants suivant le FIT. -Failure rate results: Impact des défaillances individuelles sur le système. Remplaceability. -Compact result: synthèse par composant. Functional analysis (input for FMECA and failure rate analysis) Component rating / reliability models selection. Individual FIT display Process factor audit tool Configuration management

13 RAMS process and tools List of sheets Define maintenance resources
Explications: -FMECA. Récupère automatiquement les données du tableau précédent. -Reliability audit: Outil comparateur. -Maintenance table. Récupération automatique des données de défaillance. La liste des composants est automatiquement copiée d’un onglet à l’autre. Reliability factors audit Failures modes analysis

14 RAMS process and tools / Functional analysis
Fill each cells of upper table is mandatory Then you can describe functions (Help for FMECA analysis) – Feeling not mandatory:

15 RAMS process and tools / Functional analysis: SADT

16 RAMS tool

17 RAMS process and tools (BOM and Component FIT sheet)
BOM sheet FIT calculation Components FIT sheet Reliability model selection

18 RAMS process and tools (Component FIT sheet)
Components FIT (fast rating check)

19 RAMS process and tools (Failure rate results sheet)
Failure rate results (Define mission) Failure rate results (Analysis/function)

20 RAMS process and tools (Failure rate results sheet)
(Sub-assembly up to infrastructure level)

21 RAMS process and tools (Compact results sheet)
(select product to display)

22 RAMS process and tools (FMECA sheet)

23 RAMS process and tools (FMECA sheet)
Select the product for witch the failure mode is described on the line Failure rate automatically or manually load Occurrence is calculated (Scale : 1 to 10)

24 Maintenance Status Existing sheet on RAMS Excel file for maintenance activity Automatic fill-in of frequency, workload… from individual RAMS data This activity has just started

25 4/18/2018 Design: ESD protection, HiRel and critical components, derating, components placement, thermal dissipation, monitoring parameters, environmental protections, ROHS Vs Wiskers, components obsolescence, qualification (EMC tests, pressure test…) Manufacturing: HASS, assembly process, production strategy (batches), control, manufacturing and functional tests, IPC class, cleanliness, cabling, repairing actions. Lead Free or Led? Operation : Failure mode and failure rate data from Antares and KM3NET or for laboratories. Analyze these data Failure mode analysis: failure rate analysis, FMECA  Identify maintenance and recovery actions (large working groups interaction) Quality factors: documentation, configuration management (track design changes) Design: Confirm temperature (17°C in the DOM mean? Only conduction no convection . DU base?) 25 25 25 25 25