SimGen
Rapid aerodynamic prediction tool for
UAV flight model development and
concepual design
SimGen Development
Requirement:
• Need to rapidly assess the viability of conceptual designs
• Need for rapid, low-cost flight models
SimGen Development:
• Initial development conducted under an Air Force SBIR
• Final product completed using IRAD funds
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen Product
SimGen is a rapid aerodynamic prediction tool for flight
model development and conceptual design. SimGen uses
industry-accepted computational and prediction & analysis
codes to enable you to quickly compute aerodynamic data
for use in simulation flight models or design efforts.
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen - Features
SimGen
Rapid
Simulation
Development
Tool
Aircraft
Sketch
Draw it…..
….Fly it.
Done.
Geometry Model
Data Scaling
Vortex Lattice
Computational
Aerodynamics Code
Non-Linear Semi-Empirical
Vortex Lattice
Methods
Aerodynamics
Database
Propulsion
Modeling
Detailed
Semi-Empirical
Component
Methods
Models
Propulsion
Database
Six DOF
Simulation
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen - Features
• Incorporates geometry components for quickly tracing 3-views
of an aircraft.
• Interfaces to industry-accepted computational and semiempirical aerodynamic prediction and analysis codes
• Currently supports HASC2002 and Missile DATCOM
• Auto-executes the aerodynamics code and post-processes the
data into simulation data tables
• Incorporates propulsion model generation capability for HASC
module, supporting turbofan (high, med, low bypass) and small
turbojet engines.
• Modular software design structure accommodates future
modules for generating simulation math model components
(aero, propulsion, flight controls, etc.)
• Supports export of aerodynamics tables to DSix project
structure code for rapid simulation development
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen - Process
Drawing Component
Methods
(HASC, MDATCOM)
Aero & Propulsion
Data Tables
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen - Process
• Import the aircraft 3-view drawings
• Use SimGen’s drawing components to “trace” the
aircraft geometry
• Process the geometry model
• Assign airfoil types, twist, control surface range of
motion, etc
• Define Alpha, Beta, Mach schedules
• Assign engine types, number, scale, etc.
• Execute the computational method
• Generate data tables!
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen - Applications
• Easily perform aero and flight
dynamics trade-offs in configuration
design studies.
• Produce a baseline simulation of
your aircraft that is ready for
augmentation with wind tunnel data
• Generate predictive flight models for
various simulation purposes (e.g.,
battlespace scenarios)
• Generate rapid predictions of
configuration change effects such as
store addition or surface loss.
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen - Benefits
• Rapid, GUI-based iterative design tool
• Uses industry-accepted computational methods
• Provides flying qualities assessment of novel aircraft
configurations
• Significantly reduces time from required for configuration
evaluation
• Available now
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227
SimGen
email: bar_info@bihrle.com web: www.bihrle.com
tel: 757.766.2416 fax: 757.766.9227