Modeling Advanced Aircraft Propulsion – MAAP™

Advanced analytical models well correlated to actual
product performance saving time and money on designs
that work
‣MAAP™ optimizes key design variables and evaluates
hundreds of these variables related to system design and
performance
‣Design and analyses
‣ Motors – mass, size, efficiency, temperature, life
‣ Drives – mass, size, efficiency, temperature
‣Combined optimization of power and control systems and
fuller aircraft performance
‣Conduct sensitivity analyses on trade studies (“What-if”
scenarios)
Why MAAP™?
‣Enables the making of “Big” decisions early, which in aerospace are
invariably less expense and avoids downstream delays, many failures
and much more expense later in development cycles
‣Evaluate design trades and find optimal solutions for combined
vehicle and propulsion optimized together as a system
‣Avoids potential expensive design mistakes with reliable models
‣Design and validation for initial subsystem design choices to within
~15% accuracy
‣Play ‘What if” to conduct sensitivity analyses on trade studies

MAAP™ Features
Fundamental physics-based analytical models focused on aeronautical usage
Design
‣Axial-flux dual-halbach-array and radial-flux iron-core motors
‣Motor drives
‣Generator power electronics – passive and smart
Optimize
‣ Combined motor/drive/gearbox system
Analyze
‣On-design
‣Off-design (“A day in the life of the real system….”)
Deliver
‣Estimates mass and energy losses within 15% of the final values
‣Maximum specific power motor and drive design
‣Motor/drive co-design for minimum mass
Performance Predictions Over Wide Operational
Envelopes
‣Efficiency plots versus torque and speed
‣With operational constraints
‣ Subsystem specifications
‣Drive mass, efficiency, voltage,…
‣Motor mass, efficiency, speed,…
‣Component values
‣Bus capacitance, magnet dimensions, …
‣Maximum specific power motor design
‣Maximum efficiency drive design
‣Motor/drive co-design for minimum mass

MAAP™- Gives you a Virtual Spec. Sheet
‣Design reports
‣Extensive documentation for
interpretation
‣Guided conclusions for propulsion
system
