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7
Issue
vol 63 / July, 2020
Article

DOI 10.17586/0021-3454-2020-63-1-84-93

UDC 629.7.05

MINIMIZING THE ABSOLUTE HEIGHT OF A LOW-FLYING VEHICLE DUE TO VERTICAL TRACKING OF LONG-PERIOD SEA WAVES

A. Y. Knyazhskiy
St. Petersburg State University of Aerospace Instrumentation, Department of Aerospace Measuring and Computing Systems ;


A. V. Nebylov
St. Petersburg State University of Aerospace Instrumentation, International Institute for Advanced Aerospace; Head of Institute


V. A. Nebylov
St. Petersburg State University of Aerospace Instrumentation, International Institute for Advanced Aerospace ; Scientist


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Abstract. The possibility of improving the aerodynamic quality and reducing the radar visibility of low-flying vehicles due to rounding the low-frequency components of sea waves in the vertical plane is considered. It is shown that it is possible to minimize the height of a low-flying vehicle near the sea surface due to vertical maneuvering, while maintaining a given level of safety, which allows improving the aerodynamic quality. The potential possibility of reducing the average height of the vehicle when driving in conditions of 4 - and 6-point irregular sea waves and the amount of re-loading that occurs during maneuvering are estimated by simulation. The proposed method can be implemented in the control systems of low-flying vehicles and used if it is necessary to minimize the speed and tolerance of long-term movement with minor overloads.
Keywords: low-flying vehicle, average height reduction, flight path optimization, vertical maneuvering, sea waves

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