Математическая модель пространственного движения управляемой парашютно-тросовой системы типа «ветролет»

V M Churkin; T Y Churkina; A M Girin

doi:10.22213/2413-1172-2022-3-100-107

Authors

V. M. Churkin Moscow Aviation Institute (National Research University)
T. Y. Churkina Moscow Aviation Institute (National Research University)
A. M. Girin Moscow Aviation Institute (National Research University)

DOI:

https://doi.org/10.22213/2413-1172-2022-3-100-107

Keywords:

mathematical model, parachute-tether system, controlled parachute, dome aerodynamics, sling tension force

Abstract

Mathematical modeling is created for the mathematical task of spatial motion of the controlled parachute-tether system of the “wind kite” type. The mathematical model parachute-tether system consists of a model of the main para-chute and a model of the braking parachute. The parachutes are connected by the tether. The model of the main para-chute is supposed to be the solid body. This solid body has two planes of symmetry. The braking parachute is the solid body with axial symmetry. The tether model is an absolutely flexible elastic thread. The tether is connected by ideal hinges with the main parachute and braking parachute. The control of the main parachute is carried out by changing the length of the control slings. Changing the length causes deformation of the dome. This is the reason for the change in its aerodynamics. Maneuvering of the main para-chute occurs in the vertical plane, when the length of the control slings changes simultaneously. Maneuvering of the main parachute in space is carried out when the length of the control slings changes, when the slings are given a travel difference. The system of dynamic and kinematic equations is designed for calculating the controlled spatial movement of the main parachute, braking parachute and tether. The option exists when the mass of the tether and the forces applied to the tether cannot be neglected. The motion of the tether is represented by the equations of motion of an absolutely flexible elastic thread in projections on the axis of a natural trihedron. The mathematical model is represented by a system of ordinary differential equations and par-tial differential equations. The problem is solved using various numerical methods. The solution is possible with the help of an integrated numerical and analytical approach as well.

Author Biographies

V. M. Churkin, Moscow Aviation Institute (National Research University)

DSc (Physics and Mathematics)

T. Y. Churkina, Moscow Aviation Institute (National Research University)

PhD in Engineering

A. M. Girin, Moscow Aviation Institute (National Research University)

PhD in Engineering

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