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Demisability and survivability sensitivity to design-for-demise techniques

Demisability and survivability sensitivity to design-for-demise techniques
Demisability and survivability sensitivity to design-for-demise techniques
The paper is concerned with examining the effects that design-for-demise solutions can have not only on the demisability of components, but also on their survivability that is their capability to withstand impacts from space debris. First two models are introduced. A demisability model to predict the behaviour of spacecraft components during the atmospheric re-entry and a survivability model to assess the vulnerability of spacecraft structures against space debris impacts. Two indices that evaluate the level of demisability and survivability are also proposed. The two models are then used to study the sensitivity of the demisability and of the survivability indices as a function of typical design-for-demise options. The demisability and the survivability can in fact be influenced by the same design parameters in a competing fashion that is while the demisability is improved, the survivability is worsened and vice versa. The analysis shows how the design-for-demise solutions influence the demisability and the survivability independently. In addition, the effect that a solution has simultaneously on the two criteria is assessed. Results shows which, among the design-for-demise parameters mostly influence the demisability and the survivability. For such design parameters maps are presented, describing their influence on the demisability and survivability indices. These maps represent a useful tool to quickly assess the level of demisability and survivability that can be expected from a component, when specific design parameters are changed.
0094-5765
357-384
Trisolini, Mirko
5637d517-3e44-47d1-8575-9df804914449
Lewis, Hugh
e9048cd8-c188-49cb-8e2a-45f6b316336a
Colombo, Camilla
595ced96-9494-40f2-9763-ad4a0f96bc86
Trisolini, Mirko
5637d517-3e44-47d1-8575-9df804914449
Lewis, Hugh
e9048cd8-c188-49cb-8e2a-45f6b316336a
Colombo, Camilla
595ced96-9494-40f2-9763-ad4a0f96bc86

Trisolini, Mirko, Lewis, Hugh and Colombo, Camilla (2018) Demisability and survivability sensitivity to design-for-demise techniques. Acta Astronautica, 145, 357-384. (doi:10.1016/j.actaastro.2018.01.050).

Record type: Article

Abstract

The paper is concerned with examining the effects that design-for-demise solutions can have not only on the demisability of components, but also on their survivability that is their capability to withstand impacts from space debris. First two models are introduced. A demisability model to predict the behaviour of spacecraft components during the atmospheric re-entry and a survivability model to assess the vulnerability of spacecraft structures against space debris impacts. Two indices that evaluate the level of demisability and survivability are also proposed. The two models are then used to study the sensitivity of the demisability and of the survivability indices as a function of typical design-for-demise options. The demisability and the survivability can in fact be influenced by the same design parameters in a competing fashion that is while the demisability is improved, the survivability is worsened and vice versa. The analysis shows how the design-for-demise solutions influence the demisability and the survivability independently. In addition, the effect that a solution has simultaneously on the two criteria is assessed. Results shows which, among the design-for-demise parameters mostly influence the demisability and the survivability. For such design parameters maps are presented, describing their influence on the demisability and survivability indices. These maps represent a useful tool to quickly assess the level of demisability and survivability that can be expected from a component, when specific design parameters are changed.

Text
Acta Astronautica - Final Manuscript - Accepted Manuscript
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More information

In preparation date: 2017
Accepted/In Press date: 23 January 2018
e-pub ahead of print date: 23 March 2018

Identifiers

Local EPrints ID: 414940
URI: http://eprints.soton.ac.uk/id/eprint/414940
ISSN: 0094-5765
PURE UUID: a3d72614-f1fb-49b8-9ae1-04242d1c58db
ORCID for Mirko Trisolini: ORCID iD orcid.org/0000-0001-9552-3565
ORCID for Camilla Colombo: ORCID iD orcid.org/0000-0001-9636-9360

Catalogue record

Date deposited: 17 Oct 2017 16:30
Last modified: 07 Oct 2020 05:18

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