Rotorcraft HIRF Qualification and Accident Investigations driven by - PowerPoint PPT Presentation

Rotorcraft HIRF Qualification and Accident Investigations driven by model based analysis

Contents  Introduction  C130 experimentation results  DGA model based analysis evolutions axis HIRF tests engineering   Cougar qualification illustration Accident investigation support   Flight control incident  Conclusion 12/09/2012 Slide N°2 / 29 DGA Aeronautical Systems

Contents  Introduction  C130 experimentation results  DGA model based analysis evolutions axis HIRF tests engineering   Cougar qualification illustration Accident investigation support   Flight control incident  Conclusion 12/09/2012 Slide N°3 / 29 DGA Aeronautical Systems

Introduction DGA missions : Equipping the armed forces  Preparing for the future  Promoting defence equipment exports  12/09/2012 Slide N°4 / 29 DGA Aeronautical Systems

Introduction Air Mobility Environment & Vulnerability Structures Aircraft safety Mission Test Rig Sub-Systems Engineering Systems & Materials Sub-systems Embedded Systems and Software 12/09/2012 Slide N°5 / 29 DGA Aeronautical Systems

Introduction  "Embedded Systems and Software" activities Complex systems dependability   Safety analysis validation (ARP 4754) : – Functional (FHA) – Organic (PSSA / SSA) – Zonal (ZHA / ZSA) Software and complex electronic hardware certification  (DO-178 and DO-254)  Audits depending on Development Assurance Level (DAL) Qualification tests engineering (DO-160, ED107)   Aggression level depending on DAL or safe path  BEAD and Justice minister request 12/09/2012 Slide N°6 / 29 DGA Aeronautical Systems

Contents  Introduction  C130 experimentation results  DGA model based analysis evolutions axis  HIRF tests engineering  Cougar qualification illustration  Accident investigation support  Flight control incident  Conclusion 12/09/2012 Slide N°7 / 29 DGA Aeronautical Systems

C130 experimention results  Architecture diagram  Wiring diagram  Functional description  Safety analysis 12/09/2012 Slide N°8 / 29 DGA Aeronautical Systems

C130 experimention results  VHF Communication System 12/09/2012 Slide N°9 / 29 DGA Aeronautical Systems

C130 experimention results Functional view  12/09/2012 Slide N°10 / 29 DGA Aeronautical Systems

C130 experimention results Organic view  12/09/2012 Slide N°11 / 29 DGA Aeronautical Systems

C130 experimention results Organic view  The model represents our understanding level of the system. 12/09/2012 Slide N°12 / 29 DGA Aeronautical Systems

C130 experimention results Organic view   Organic failures - SW / HW loss or detected erroneous value - SW / HW undetected erroneous value (misleading) Le modèle représente notre niveau  Synchronizations de compréhension du système. - Identified common modes 12/09/2012 Slide N°13 / 29 DGA Aeronautical Systems

C130 experimention results Zonal view   Zonal threats - fire - HIRF aggression - lightning - bird strike 12/09/2012 Slide N°14 / 29 DGA Aeronautical Systems

C130 experimention results  Operating state  Zonal threat : HIRF agression 12/09/2012 Slide N°15 / 29 DGA Aeronautical Systems

C130 experimentation results  Quantitative & qualitative analysis Fault tree & Sequence generation  Minimal cuts number at a given order   common modes, particular risks, zonal analysis Probability verification  Development Assurance Level (DAL) allocation verification   unit validation   easy to refine & modify  easy to integrate  emergent properties 12/09/2012 Slide N°16 / 29 DGA Aeronautical Systems

C130 experimentation results  Architecture quality analysis Optimal qualitative rendering through the minimal cuts  Candidate architectures comparison   Complexity control Better system understanding help  Emergence of properties  Common modes control   Collaborative work / capitalization Usable tool within a joined team  Reusable and customizable framework   Interfacing with Industry Used by industrials  Professional tool specialized in Safety analysis  12/09/2012 Slide N°17 / 29 DGA Aeronautical Systems

Contents  Introduction  C130 experimentation results  DGA model based analysis evolutions axis  HIRF tests engineering  Cougar qualification illustration  Accident investigation support  Flight control incident  Conclusion 12/09/2012 Slide N°18 / 29 DGA Aeronautical Systems

Since C130 experimentation in 2010  Around 10 various Altarica models have being produced MRTT, Multi-Role Tanker  Transport (Navigation systems) VBMR (Army vehicule system)  MdCN, Nuclear Submarine Missile  Hawkeye (Navigation systems)  C160, Transall (flight control  system ) Cougar, military Super-Puma  AS532 (Decoy Launcher System) ACCS (French Air Force Air Traffic  Managment) TSMPF ( Naval Tactical  Communication System) 12/09/2012 Slide N°19 / 29 DGA Aeronautical Systems

HIRF tests engineering  Hight Intensity Radieted Fields  Severe electromagnetic environment (more than 200V/m)  Aircraft system must perform their function close to the carrier radar 12/09/2012 Slide N°20 / 29 DGA Aeronautical Systems

HIRF tests engineering  Antenna  Anechoic chamber  Digital data links 12/09/2012 Slide N°21 / 29 DGA Aeronautical Systems

Cougar Decoy Launcher system  « Catastrophic » failure condition Loss of jettisoning command combined with an emergency landing Emergency Loss of landing Jettisoning order 12/09/2012 Slide N°22 / 29 DGA Aeronautical Systems

Cougar HIRF tests instrumentation  Data links  FADEC and VMS ARINC 429 data links  Decoy Launcher CAN networks  …  Camera  Position sensor  … 12/09/2012 Slide N°23 / 29 DGA Aeronautical Systems

Accident Investigations  Requests  BEA/BEAD  Failure identification  Justice minister  Responsability identification  Expertise domains  Structurals  Materials  Digital Embedded Systems (flight control, avionics,…)  … 12/09/2012 Slide N°24 / 29 DGA Aeronautical Systems

Accident Investigations  Complex Architecture  Old system without safety analysis 12/09/2012 Slide N°25 / 29 DGA Aeronautical Systems

Contents  Introduction  C130 experimentation results  DGA model based analysis evolutions axis  HIRF tests engineering  Cougar qualification illustration  Accident investigation support  Flight control incident  Conclusion 12/09/2012 Slide N°26 / 29 DGA Aeronautical Systems

Conclusion  Scope of the dependability process at DGA Aeronautical Systems level   support for critical systems and software certification  support for qualification test assessment  support for accident investigation at DGA level   support to design architects for : – Airworthiness Authorities issues – technical risk control of a program  Modelling drives our assesment process efficiency 12/09/2012 Slide N°27 / 29 DGA Aeronautical Systems

Next evolutions  Model based security assesment  Model coupling with electromagnetic simulation Assess ligntning impact on system  Vincent Louis, Florian Many 12/09/2012 Slide N°28 / 29 DGA Aeronautical Systems

Questions 12/09/2012 Slide N°29 / 29 DGA Aeronautical Systems