Research of Influence of Small Asymmetries Construction on the Dynamics Motion of Space Landing Vehicle with Considering Resonance

Vsevolod V Koryanov,Victor P Kazakovtsev,D Zhang,H Ding,G Cui,B Zi

doi:10.1051/matecconf/20167703006

Vsevolod V Koryanov, Victor P Kazakovtsev + Show 4 more

Open Access

https://doi.org/10.1051/matecconf/20167703006

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Abstract

This article provides an analytical methodology rapid assessment of the impact of small asymmetries on motion dynamics of space landing vehicle in a resonant motion. The methodology allows to analyze the value of the design parameters and the aerodynamic coefficients on the degree of their influence through the asymmetry of a deviation from the longitudinal axis of the vehicle velocity vector. The methodology is based on the assumption that the rapid development of resonant modes of motion. An example of the calculations for the proposed method, which showed the adequacy of the results according to the calculations for modeling the spatial movement.

Highlights

Aspects of the dynamics and sustainability of the movement is not controlled spacecraft, with rotation about the longitudinal axis, the presence of small asymmetries devoted sufficient number of scientific publications [1,2,3,4, etc.]
In this paper we present a methodology for assessing the impact of small asymmetries in the longitudinal axis of the deflection space landing vehicle from the velocity vector in a resonant mode of motion, for use in the early design stages of the landing vehicle
The methodology allows to analyze the value of the design parameters and the aerodynamic coefficients on the degree of their influence through the asymmetry of a deviation of the longitudinal axis of the landing vehicle of the velocity vector

Summary

Introduction

Aspects of the dynamics and sustainability of the movement is not controlled spacecraft, with rotation about the longitudinal axis, the presence of small asymmetries devoted sufficient number of scientific publications [1,2,3,4, etc.]. In [5] and [8], in more detail the methods for calculating the parameters of angular motion of space landing vehicles with an inflatable braking device Is shown in these that the presence of small asymmetries may experience resonant mode of motion, in which the longitudinal axis of the landing vehicle is significantly deviates from the velocity vector. The landing vehicle may lose stability their movement In these papers presented the mathematical model of motion of the landing vehicle, taking into account the influence of small asymmetries. The most complete picture of the spatial movement of the landing vehicle can be obtained by numerical integration of complex nonlinear mathematical models This way of solving the problem is possible only in the final stages of design and gives only a partial (numerical) results. In this paper we present a methodology for assessing the impact of small asymmetries in the longitudinal axis of the deflection space landing vehicle from the velocity vector in a resonant mode of motion, for use in the early design stages of the landing vehicle

Modelling

Results

D Ï max 2 D Ï max 1

Conclusions