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Simulation and Research Services Division Patuxent River, Maryland Roger Burton Program Manager

Simulation and Research Services Division Patuxent River, Maryland Roger Burton Program Manager 301-866-6715 roger.a.burton@saic.com MEETING No. 99 AEROSPACE CONTROL AND GUIDANCE SYSTEMS COMMITTEE Millennium Harvest House Boulder, CO. Feb 28 – Mar 2, 2007. History .

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Simulation and Research Services Division Patuxent River, Maryland Roger Burton Program Manager

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  1. Simulation and Research Services Division Patuxent River, Maryland Roger Burton Program Manager 301-866-6715 roger.a.burton@saic.com MEETING No. 99 AEROSPACE CONTROL AND GUIDANCE SYSTEMS COMMITTEE Millennium Harvest House Boulder, CO. Feb 28 – Mar 2, 2007

  2. History • Supporting the Navy at Patuxent River since 1970’s as Systems Control Technology- Acquired by SAIC in 1994 • Local Office opened in 1983 • Air Vehicle Support (AVS) Contract (AFTTECH) since 1983. • We are the aero & controls SMEs for Pax

  3. Technical Capabilities • Flight Simulator Development and Acceptance • Simulation/Stimulation technology • Real-time and physics based modeling • Hardware and software • Flight Test Support • Planning • Execution • Analysis-Specializing in Systems Identification • Modern Controls/Optimization • UAV Control Systems • Control analysis • IV&V • Specification Compliance • Handling qualities

  4. Roll In/ Roll Out Capability 6 Degree Of Freedom Motion Platform M2DART Platform V-22 High Fidelity Simulator

  5. Present/Past Projects at NAWCAD • Simulation Support (F-18, V-22, S-3, C-130, AH-1W) • Blade Element Modeling (AH-1W, CH-53, UH-1N, CH-47F, SH-60R/S ) • Trainer Model Development (AH-1W, F-14A/B, CH-53E, UH-1N, C-130H2/T, CH-47F, SH-60R) • Flight Control Hardware Support (SAFCS, S-3, V-22, F-18, EA-6B) • UAV Support (SAIC Fixed and R/W a/c, Hunter and Pioneer) • Handling Qualities Expert System Development • Flight Control IV&V • Systems Identification • Simulation Mechanical Design • Flight Test Support

  6. Special Instrumentation Systems SIMES • SIMES is an instrumentation system specifically designed to measure simulator cueing systems and their fidelity. • Measures bandwidth, transient performance, and time delays as well as compares predicted results to actual results for fidelity analysis. • Motion system, cockpit controls and visual system 1000 Hz Operation H/W Anti-aliasing Analog Digital and Video Processing High Performance Data Acquisition Provided as product or a service to our customers

  7. Special Purpose Analysis Systems IDEAS IDEAS Integrated Data Evaluation and Analysis System Data Archiving Wild-Point Editing Flight Test Data Data Processing and Reconstruction Intuitive X-Window Kinematic Consistency Analysis Motif User Interface Equation Error, Output Error, and Filter Error System Identification Electronic Archive Interface to MATLAB, Statistical and Math Routines CIFER and C lp other User Developed Routines analysis tools  Data Display and Plot Utilities Math Model Improvement On-line Help Utilities • IDEAS - Integrated Data Evaluation and Analysis System • A “High-End” Data Analysis and Simulation Tool • Expert System

  8. IDEAS - System Identification and Model Fidelity y Estimates of System Parameters y - ys ys Iterative Process System Identification Procedure

  9. Current UAV Flight Test Program Ground Tests –Engine / Prop Gov Dynamics –TO / Landing •Flying Qualities ITB –Doublets –Freq Sweeps –Pitch Captures –Wheel / Pedal Bank to Bank –Static Stability •High AOA –Stalls –WUTs •Hinge Moment ITB –Doublets •Airborne Engine Tests –Power Lever Bodes –Level Flight Accel- Decel

  10. Current Data Processing

  11. Example Frequency SweepElevator Deflection

  12. Current Data Processing

  13. Our Specialty-Simulation Model Fidelity 5 0 . Flight Prev. PID 4 0 . 0.1 3 0 . 0.0 -0.1 2 0 . C l p -0.2 1 0 . (per rad) -0.3 P 0 . 0 -0.4 - 1 0 . -0.5 - 2 0 . -0.6 - 3 0 . 0 5 10 15 20 25 30 35 40 45 50 55 - 4 0 . angle-of-attack (deg) - 5 0 . 0 . 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 . 1 0 . TIME solid - PID dashed - Prev. dot-dash - Flight Systems Identification Parameter Identification Flight Test A Continuous Integrated Process SIMES Data Acquisition Simulate the Flight Test Analyze the Flight Data Update the Simulation Model IDEAS

  14. FCS Design and Development Cycle GCS Upgraded Control System HWIL Flight Test Data Acquisition MATLAB/Simulink, Conduit, etc. Data archiving, analysis, reduction IDEAS/CIFER Regression testing & Acceptance Equivalent system models Control Law Development Systems Identification Non-linear Control Law Implementation High-Fidelity Non-linear Model SWIL IDEAS

  15. Flight Control Algorithms Common architecture across all platforms Layered control concept

  16. Summary • Heavy Simulation and Stimulation Support of NAWCAD, specializing in: • Physics based simulation modeling • Control system design and analysis • Flight test support • Training simulator model development specialists –make the sim. fly like the a/c • Systems developer for specialized simulation systems • SIMES -simulation instrumentation & testing • IDEAS – flight test and simulation analysis • UAV Control Systems Development

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