AMESim for Airspace
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12 copyright LMS International - 2009
Flight Control Actuation
Hydraulic Actuation
Mechanical Actuation
Primary Control Actuation Hydraulic or More Electric
Detailed
Design & Sizing
Detailed Geometry Detailed Strutural Analysis System Thermal Analysis
Integrated
Validation
Force Fighting Integrated Fatigue Analysis Failure Mode Analysis
Fluid Systems
Mechanical Systems
Thermal Systems
Electromechanical Systems, Electrical Actuators
Internal Combustion Engine (ICE)
Control
Power Electronics
3 copyright LMS International - 2007
Normal System Ops.
Degraded System
Flight Timeline
Active
Failed
Passive Different models used
Active
11 copyright LMS International – 2009
STRICTLY COMPANY CONFIDENTIAL
LMS Solutions Overview Aviation - Aircraft Systems overview
EL E SY CT ST RIC EM A S L
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eq EN ui GIN pm E en t
A/C Integrated Systems Analysis
LMS Simulation Solutions for Aerospace
March 2010 – 4th Aviation & Avionics Seminar, Ankara, Turkey
Loig ALLAIN, AS&D solution manager
LMS b AMESim How is system simulation performed?
Fuel System
From reservoir to来自injectorsCircuit Pumps Valves Ejectors Thermal aspects Control
6 copyright LMS International - 2007
Falcon 7X Systems HYDraulic system – ATA 29
3 independent HYDraulic systems – HYD A – HYD B – HYD C
Flight Control: Hydraulic Circuit and actuators
Pumps Distrubtion network Actuators + redudancy
AMESim network for distributed parallel simulation Each subsystem is a ‘slave’ model
8 copyright LMS International - 2009
Aerospace Solutions Overview HYDRaulic systems
Increasing Model Details
Electro-Mechanic Electro-Hydrostatic
Increasing Model Details
Hydraulic
?
Concept
Design & Actuation
Technology & System selection based on Technology trade-off
15 copyright LMS International - 2007
Flight Control
All types of controlled systems coupling mechanical, electro-mechanical, hydraulic, thermal
Mechanism Animation
2 copyright LMS International - 2007
LMS b AMESim Multi-Functional System Mock-Up simulation
Integrated platform for Multi-Functional & Multi-Disciplianry System simulation Component level & Detailed Level Integrated System Level At all the steps of the design process: Concept System Architecture Technology Trade-off Energetic approach for multisystem architecture Functional specifications of systems Design of systems and components Validation of systems integration Control strategies validation Electronic Control Unit validation and calibration Virtual testing phase
1 Process 1 solver
“What If” analysis
System State Models A P EHA models @ A.Active / P.Passive / F.Failed F morphology
P
HA models @ F A.Active / P.Passive / F.Failed morphology
9 copyright LMS International - 2007
Subsystems integration : master and slaves
1 Process 1 solver
1 Process 1 solver
10 copyright LMS International - 2009
Au t
As s
M
Control Design (SIL) Geometric Modeling
Validation Real-Time (HIL)
+
Hardware controller in the system model of a transmission
C er tif
M
n En tr y Se In rv to ic e
Jack Model
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Flight Control: different technologies
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Flight Control: Mechanical & Electro-Mechanical
Simulation of the complete system The simulation model is an assembly of components Components are described using analytical or tabulated models Description of physical phenomena based on few “macroscopic” parameters Multi-domain / Multi-level approach Looking for static/dynamic responses (time & frequency domains)
16 copyright LMS International - 2009
Flight Control: EHA
EHA – Electrohydrostatic Actuator
Controls Electric Motors Mechanical Hydraulics 2-D Mechanics
FEATURES
Variables fluid properties (handling aeration/cavitation) Isothermal or Thermal calculation Compatible to Thermal library More than 1 fluid in the system Complex line models to take into account pressure waves Large database of predefined hydraulic components Elementary library which enable Design of component based on a technological approach. Adaptive solver well suited for hydraulic system (non linear, stiff). Coupling capabilities with CFD (jet forces estimation), CAD (piping network) and 3D mechanism Real Time Compatible