Variable Topological Method for Reliability Assessment of Aerospace Vehicle Separation

DOI

10.2991/msbda-19.2019.21How to use a DOI?

Keywords

Separation dynamics, Variable topological structure, Reliability assessment, Separation internal force, Monte Carlo simulation

Abstract

During the launch of a rocket or missile, certain segments must separate from the main body, and the reliability of this separation can affect the final success of the mission. Most reports on the analysis of the specific separation structures employ specific finite element software programs; moreover, although most studies on reliability focus on the simple dynamics of the segments, few consider the separation dynamics in the distribution reliability analysis. Thus, a generalized variable topological dynamics-based aerospace separation reliability analysis method is proposed in this paper. With the exception of a few basic constraints imposed by external forces, a few internal forces in the separation structure derived from the spring oscillator assumption were also included as variable topological constraints. As the craft separated, the variable topological structure constraints changed according to the transfer conditions. The separation reliability criterion was established after modeling the separation dynamics and used to derive the reliability model and the distribution hypothesis test to estimate the separation reliability. Finally, the Monte Carlo separation simulation was conducted to verify the reliability analysis method. The results indicate that the method can effectively estimate the different phases of the separation process and verify the separation reliability of the aerospace vehicle.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Wanmeng Zhou
AU  - Haiyang Li
AU  - Feng Huang
PY  - 2019/08
DA  - 2019/08
TI  - Variable Topological Method for Reliability Assessment of Aerospace Vehicle Separation
BT  - Proceedings of the 2019 International Conference on Modeling, Simulation and Big Data Analysis (MSBDA 2019)
PB  - Atlantis Press
SP  - 133
EP  - 142
SN  - 2352-538X
UR  - https://doi.org/10.2991/msbda-19.2019.21
DO  - 10.2991/msbda-19.2019.21
ID  - Zhou2019/08
ER  -