Results 51 to 60 of about 875 (223)
Performances Study of a Hybrid Rocket Engine
INCAS BULLETIN, 2018 This paper presents a study which analyses the functioning and performances optimization of a hybrid rocket engine based on gaseous oxygen and polybutadiene polymer (HTPB). Calculations were performed with NASA CEA software in order to obtain the parameters resulted following the combustion process.
openaire +2 more sources
Scale effects on hybrid rocket engine performance [PDF]
, 2021 In the current study, the effects of scaling up a hybrid rocket engine (HRE) in size has on its performance is investigated. A HRE design from a past RU study is selected as the base model to be progressively increased in size while geometric scale is maintained, up to ten times the original’s size.
openaire +1 more source
Design of a sounding rocket upper stage based on the hybrid rocket engine VISERION [PDF]
, 2022 In the context of the AHRES (Advanced Hybrid Rocket Engine Simulation) program of the German Aerospace Center (DLR), an upper stage for the Brazilian sounding rocket VSB-30 is designed. This third stage is based on the hybrid rocket engine VISERION.
Eggers, Thino +3 more
core +1 more source
Multiphysics Modelling of a Hybrid Rocket Engine [PDF]
14th WCCM-ECCOMAS Congress, 2021 Ferrero, A. +3 more
openaire +2 more sources
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review
Journal of Field Robotics, EarlyView.ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton +4 more
wiley +1 more source
Towards the Integration of Surrogate Models in the Robust Optimization of Hybrid Rocket Engines [PDF]
Hybrid rocket engines combine the appealing features of solid and liquid propulsion systems, offering advantages such as cost-effectiveness, safety, and eco-friendliness.
Masseni Filippo
core +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Conceptual study of rocket-scramjet hybrid engines in a lifting reusable second stage [PDF]
, 1969 Rocket-scramjet hybrid engines in lifting reusable second ...
Allen, J. L., Dobrowolski, A.
core +1 more source
Modeling of High Density Polyethylene Regression Rate in the Simulation of Hybrid Rocket Flowfields
Aerospace, 2019 Numerical analysis of hybrid rocket internal ballistics is carried out with a Reynolds-averaged Navier−Stokes solver integrated with a customized gas−surface interaction wall boundary condition and coupled with a radiation code based on the ...
Daniele Bianchi +4 more
doaj +1 more source