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TsAGI Science Journal

ISSN Печать: 1948-2590
ISSN Онлайн: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2013010512
pages 507-519

INVESTIGATION OF ROTARY AND UNSTEADY DERIVATIVES OF THE PITCHING MOMENT OF AN AIRPLANE MODEL USING A 2DOF FORCED OSCILLATION RIG

Ivan Vasilyevich Kolin
Central Aerohydrodynamic Institute (TsAGI)
Kazbek Fedorovich Latsoev
Central Aerohydrodynamic Institute (TsAGI)
Vladimir Georgievich Markov
Central Aerohydrodynamic Institute (TsAGI)
Viktor Konstantinovich Svyatodukh
Central Aerohydrodynamic Institute (TsAGI)
Tamara Ivanovna Trifonova
Central Aerohydrodynamic Institute (TsAGI)
Dmitry Valeryevich Shukhovtsov
Central Aerohydrodynamic Institute (TsAGI)

Краткое описание

A new, dynamic two degrees-of-freedom (2DOF) oscillation rig, SLUK, which implements joint heave and angular harmonious oscillations of an aircraft model, was developed at TsAGI. The rotary and unsteady derivatives of the pitching moment coefficient and their sum are obtained experimentally for a passenger aircraft in a wide range of angles of attack. The values of the unsteady derivative obtained experimentally are shown to be in good agreement with its evaluations determined as the difference between the experimentally obtained values of the sum of the rotary and unsteady derivatives and the rotary derivative of the pitch moment coefficient.


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