| Titre : |
Composite payloag fairing structural architecture assessment and selection |
| Type de document : |
texte imprimé |
| Auteurs : |
Thomas M. Krivanek, Auteur ; Bryan C. Yount, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 40-48 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Composites à fibres
Industries aérospatiales -- Matériaux
|
| Tags : |
'Matériaux composites' 'Structures 'Composites fibres' 'Poids lourds' 'Lancement levage' Charges Risques spatiale' 'Conception structure' Garde |
| Index. décimale : |
620.11 Matériaux (propriétés, résistance) |
| Résumé : |
This paper provides a summary of the structural architecture assessments conducted and a recommendation for an affordable high performance composite structural concept to use on the
next generation heavy-lift launch vehicle, the Space Launch System (SLS).
The Structural Concepts Element of the Advanced Composites Technology (ACT) project and its follow on the Lightweight Spacecraft Structures and Materials (LSSM) project was tasked with evaluating a number of composite construction technologies for specific Ares V components : the Payload Shroud, the Interstage, and the Core Stage Intertank. Team studies strived to address the structural challenges, risks and needs for each of these vehicle components. Leveraging off of this work, the subsequent Composites for Exploration (CoEx) effort is focused on providing a composite structural concept to support the Payload Fairing for SLS.
This paper documents the evaluation and down selection of composite construction technologies and evolution to the SLS Payload Fairing. Development of the evaluation criteria (also referred to as Figures of Merit or FOMs), their relative importance, and association to vehicle requirements are presented. A summary of the evaluation results, and a recommendation of the composite concept to baseline in the Composites for Exploration (CoEx) project is presented.
The recommendation for the SLS Fairing is a Honeycomb Sandwich architecture based primarily on affordability and performance with two promising alternatives, Hat stiffened and Fiber Reinforced Foam (FRF) identified for eventual program block upgrade. |
| Note de contenu : |
- PAYLOAD FAIRING REQUIREMENTS AND CONFIGURATION
- EVALUATION CRITERIA AND PRIORITY : Basic mass - Damage tolerance during use - Sensitivity to fabrication defects - Joint mass - Non-recurring cost + 20 production units - Acoustic transmissibility - Repairability - Thermal tolerance - Flexibility in desing - Non-destructive evaluation and inspectability - Environmental sensitivity - Structural health monitoring - Trade process
- RISK AND UNCERTAINTY ISSUES
- RESULTS OF STUDY : Basic mass - Concept overall scoring |
| En ligne : |
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120009204_2012009492.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15610 |
in SAMPE JOURNAL > Vol. 48, N° 4 (07-08/2012) . - p. 40-48
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