For software licensing information contact: softwaresales@ama-inc.com
STRLNCH: Aircraft Store Separation and Carriage Loads Analysis
STRLNCH is a comprehensive 6-DOF store separation simulation software package, supported by MISL3 or MISDL software
STRLNCH is a comprehensive 6-DOF store separation simulation software package applicable to high angle-of-attack launch from maneuvering aircraft at subsonic and supersonic speeds. Released store/missile aerodynamics are modeled by either the MISL3 or MISDL software.
Reduces need for costly wind tunnel tests. Indispensable in preliminary safe store launch assessment and parent aircraft/store integration studies. Applicable to Monte Carlo simulations and statistical analysis of factors affecting safe separation. STRLNCH runs fast on PCs (Windows & Linux).
Capabilities
Range of Flow Parameters
Subsonic through supersonic Mach numbers
Parent aircraft angles of attack/sideslip up to 60 degrees
Arbitrarily maneuvering aircraft
Nonzero rotational rates
Important Parent Aircraft Modeling Features
VTXCHN fuselage modeling for high angles of attack
Stall models for wing/pylon(s) at high angles of attack
Important Store and Release Modeling Features
See MISL3 and MISDL information
Effects of parent aircraft nonuniform flow
Noncircular store modeling with MISDL
Canard-tail vortical interference
Rail/tube launch option
Hook release and delay modeling
Ejection force models
Thrust time histories
Time dependent mass properties
User-specified autopilot
Umbilical chord/disconnect model
Lanyard disconect model
Wing-deployment model
Special modeling for wing-tip mounted missiles
Quantities Computed
Launched store 6-DOF trajectory characteristics: translational and rotational positions, velocities and accelerations
Overall 6-DOF forces and moments time histories: CA, CY, CN, Cl, Cm, Cn
Fin forces and moments: CAF, CNF, CHM, CBM
Detailed carriage load distributions on store body and fins
Output Files
Spreadsheet files of trajectory state variables, store loads, etc.
Flow field components velocities
Tecplot® compatible files for: 3-D animations of trajectories
2-D plots of the released store trajectory characteristics
Details of the parent aircraft induced flow field
Aircraft Models (partial list)
Aircraft: F-4, F-5, AV-8B, F-14, F-15, F-16, F/A-18, F-22,B-52, CN-235, 737, 747, 767, L1011, DC-8, Draken, HU-25 Falcon, PC-21
Helicopter: SH-60B, SH-2G, OH-6Various UAVs
Weapon Systems: MSST/RATO, MSST/Sprint
For software licensing information contact: softwaresales@ama-inc.com
NOTE: Use of public domain NASA photos and the NASA logo should not be construed as an endorsement from NASA.
References
Mendenhall, M. R., Lesieutre, D. J., and Kelly, M. J., "Trailing Vortex-Induced Loads During Close Encounters in Cruise," AIAA 2015-3300, Jun. 2015.
Reisenthel, P. H., Lesieutre, D. J. and Quijano, O. E. "Statistical Analysis of Jettison Ejection Scenarios," AIAA-2015-1526, Jan. 2015.
Lesieutre, D. J., Dillenius, M. F. E., and Gjestvang, J. A., "Store Separation Simulation of the Penguin Missile from Helicopters," Paper Number 9, Presented at NATO-RTO Symposium on Innovative Missile Systems, Amsterdam, The Netherlands, May 2006, RTO-MP-AVT-135.