Determination of motion parameters by analyzing videos of the launch vehicle verticalization process

Abstract

The possibilities of determining the motion parameters of an arrow with a space rocket during the ascent process by analyzing video recordings is analised in the paper. Such an approach will allow an analysis of the dynamics of the rise, including transient processes, without the use of expensive systems for recording parameters, or be used to obtain additional information about the rise process in the presence of such systems. Four main types of data are identified that can be obtained from the analysis of such a movement: data on the natural frequencies of structural vibrations that can be used for subsequent system diagnostics; data on the actual law of motion of a boom with a launch vehicle carrying information on the actual parameters of the lift drive and some features of its operation; data on the maximum values of the total accelerations and displacements for various points of a space rocket to determine their acceptability; the stiffness of part of the boom and space rocket elements, as well as the actual vibration damping coefficients and other parameters. The analysis of the influence of optical distortions due to inhomogeneity of the atmosphere in the observed region and distortions due to the imperfection of the optics used, as well as ways to combat their negative influence in the problem under consideration.