Effectiveness of a direct lift controller(DLC) for in-f light simulation was studied. The analysis result showed that the DLC is indispensable for the simulation of models operated in the backside region of the speed/resistance curve. DLC flaps were installed on the variable stability and response airplane(VSRA) of the National Aerospace Laboratory of Japan for demonstration. A model-following system was constructed to simulate a backside-operating model after tailoring feedback/feed-forward gains. Results of the flight test with this system indicated that a DLC is useful but not necessary for simulating frontside-operating models, whereas it is necessary to obtain practically acceptable model-following errors in the case of simulating backside-operating models. As an example of the simulation in the backside region, results of a simulated landing approach test were also described. 12 refs., 7 figs., 5 tabs.
DLC wo mochiita backside model no in flight simulation. (In-flight simulation of backside operating models using direct lift controller)
1992
16 pages
Report
Keine Angabe
Englisch
Aeronautics , Aerodynamics , Test Facilities & Equipment , Aircraft , Flight Testing , Baffles , Control Systems , Drag , Errors , Feedback , Gain , In-Situ Processing , Navigation , Reentry , Response Functions , Stability , Tolerance , Velocity , Foreign technology , Flight simulators , Lift , EDB/320201 , EDB/990200 , EDB/420400
In-Flight Simulation of Backside Operating Models Using Direct Lift Controller
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