Methodical research of unsteady aerodynamic characteristics of the main-stage separation unit of emergency rescue system at supersonic speeds
N.P. Adamov1, A.M. Kharitonov1, E.A. Chasovnikov1, A.A. Dyadkin2, A.N. Krylov2
1Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
2Korolev Rocket and Space Corporation Energiya, Korolev, Russia
Keywords: model main-stage separation unit of emergency rescue system, supersonic speeds, free oscillations, quasi-steady characteristics, damping constant, aerodynamic damping
Abstract
A brief description of measuring means, a free-oscillation setup with a transverse sting of the model, and test conditions is reported. A procedure for processing experimental data is described. Quasi-steady and damping aerodynamic characteristics of the pitching moment of the model in the range of Mach numbers M = 1.75-6 are obtained. A comparison of research results with calculated data, as well as with the previous experimental data obtained using the base sting is given. It was found that at M = 3-6 regular undamped oscillations of the model are excited.
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