Based on the premise that sharp leading edges are beneficial for launch, ascent and landing phases several concepts for sharp leading edges of winged re-entry vehicles have been scrutinized. On the other side blunt leading edges mitigate the heat loads during re-entry. Therefore, to comply with material temperature limits either sharp leading edges have to be cooled or the curvature shape must be changed between ascent/landing and re-entry flight phases. Sharp leading edge shapes are enabled by transpiration cooling, heat pipe or other heat load relieving concepts. Changing the wing profile, i.e. shape morphing is a research topic in aircraft development which progresses steadily. Basic feasibility of concepts for morphing the leading edges of hypersonic flight vehicles has been studied within a recent ESA technology contract. A shape morphing compliant mechanism leading edge fully based on CMC materials indicates advantages compared to other concepts.

Smart thermal protection leading edges / Keller, K; Lampani, Luca; Ritter, H; Pfeiffer, E; Gaudenzi, Paolo. - ESASP.631:(2006). (Intervento presentato al convegno 5th European Workshop on Thermal Protection Systems and Hot Structures tenutosi a ESTEC, Noordwijk (The Netherlands)).

Smart thermal protection leading edges

LAMPANI, LUCA;GAUDENZI, Paolo
2006

Abstract

Based on the premise that sharp leading edges are beneficial for launch, ascent and landing phases several concepts for sharp leading edges of winged re-entry vehicles have been scrutinized. On the other side blunt leading edges mitigate the heat loads during re-entry. Therefore, to comply with material temperature limits either sharp leading edges have to be cooled or the curvature shape must be changed between ascent/landing and re-entry flight phases. Sharp leading edge shapes are enabled by transpiration cooling, heat pipe or other heat load relieving concepts. Changing the wing profile, i.e. shape morphing is a research topic in aircraft development which progresses steadily. Basic feasibility of concepts for morphing the leading edges of hypersonic flight vehicles has been studied within a recent ESA technology contract. A shape morphing compliant mechanism leading edge fully based on CMC materials indicates advantages compared to other concepts.
2006
5th European Workshop on Thermal Protection Systems and Hot Structures
Contracts; Flight dynamics; Reentry; Thermal insulation; Thermal load
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Smart thermal protection leading edges / Keller, K; Lampani, Luca; Ritter, H; Pfeiffer, E; Gaudenzi, Paolo. - ESASP.631:(2006). (Intervento presentato al convegno 5th European Workshop on Thermal Protection Systems and Hot Structures tenutosi a ESTEC, Noordwijk (The Netherlands)).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/56687
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