Улучшение проходимости, плавности хода и управляемости летательных аппаратов…
9
Improving cross-country ability, run smoothness and
controllability of aircrafts and vehicles with controllable
combined air-cushion undercarriage
© V.N. Naumov
2
, V.A. Brusov
1
, A.A. Dolgopolov
1
, D.A. Chizhov
2
,
Yu.Yu. Merzlikin
1
, A.S. Menshikov
1
1
Central Aerohydrodynamic Institute, NIMK TsAGI, Moscow, 105005, Russia
2
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article describes a developed method of selecting and optimizing parameters of com-
bined chassis complex control algorithms and aerodynamic aircrafts elements. This
method allows decreasing aircrafts dynamic load during running by rough runway and
provides airplane stability and controllability during take-off and landing in the condi-
tions of cross-wind and slope of the runway. Preliminary calculations and experimental
researches of chassis with controllable pressure in sections of air-cushion indicate that
accelerations of aircrafts with such kind of undercarriage and appropriative algorithms
could be reduced by 1.8 times. It becomes possible to use for take-off and landing water
surface, prepared and unprepared ground surfaces, soft soil flat country. It is shown, that
the control of run direction during take-off and landing in conditions of cross-wind and
slope of the runway should be realized by airplane turn on balancing angle of glide. Au-
tomation of control under these conditions allows reducing side deviation down to 2.5
meter. To predict energy efficiency of aircrafts and vehicles with air-cushion chassis in
wide range of changeable parameters conditions developed and verified math model.
This model allows creating and fine-tuning algorithms of dividing the power between
wheeled propeller and air-cushion system to provide the most efficient mode of objects
motion.
Keywords:
driving dynamics, the system of differential equations, the mathematical mod-
el, the disturbance irregularities, management, depreciation hour.
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Snizhenie dinamicheskoy nagruzhennosti LA s ShVP pri dvizhenii po nerov-
