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- Title
Survivability assessment of spacecraft impacted by orbit debris.
- Authors
Di-qi Hu; Bao-jun Pang; Run-qiang Chi; Zhang-chi Song; Hao Wu
- Abstract
To help optimize the spacecraft design and reduce the risk of spacecraft mission failure, a new approach to assess the survivability of spacecraft in orbit is presented here, including the following three steps: 1) Sensitivity Analysis of spacecraft. A new sensitivity analysis method, a ray method based on virtual outer wall, is presented here. Using rays to simulate the debris cloud can effectively address the component shadowing issues. 2) Component Vulnerability analysis of spacecraft. A function "Component functional reduction degree - Component physical damage degree" is provided here to clearly describe the component functional reduction. 3) System-level Survivability Assessment of spacecraft. A new method based on expert knowledge reasoning, instead of traditional artificial failure tree method, is presented here to greatly improve the efficiency and accuracy of calculation.
- Subjects
SPACE vehicle design &; construction; SENSITIVITY analysis; RISK assessment software; COMBAT survivability (Military engineering); HYPERVELOCITY
- Publication
Defence Technology, 2021, Vol 17, Issue 3, p961
- ISSN
2096-3459
- Publication type
Article
- DOI
10.1016/j.dt.2020.06.003