Results 111 to 120 of about 4,415 (229)

Solid Propulsion Integrity Program (SPIP) for verifiable enhanced solid rocket motor reliability [PDF]

open access: yes
To increase the success rate of U.S. built Rocket Motors (SRM), the approach taken is: (1) set common reliability goals for nozzles, cases, bondline, propellant, and insulation; (2) build a common engineering data base to support standard industry-wide ...
Butler, Barry L.
core   +1 more source

Refining the Ares V Design to Carry Out NASA's Exploration Initiative [PDF]

open access: yes, 2008
NASA's Ares V cargo launch vehicle is part of an overall architecture for u.S. space exploration that will span decades. The Ares V, together with the Ares I crew launch vehicle, Orion crew exploration vehicle and Altair lunar lander, will carry out the ...
Creech, Steve
core   +1 more source

Heterogeneous fuel for hybrid rocket [PDF]

open access: yes, 1996
Heterogeneous fuel compositions suitable for use in hybrid rocket engines and solid-fuel ramjet engines, The compositions include mixtures of a continuous phase, which forms a solid matrix, and a dispersed phase permanently distributed therein.
Stickler, David B.
core   +1 more source

Enhancing energetic features of HTPB binder through nitro-functionalization and nitrocellulose doping

open access: yesFirePhysChem
This study presents a double modification strategy to enhance hydroxyl‑terminated polybutadiene (HTPB) properties as an energetic binder. HTPB was chemically nitrated to obtain nitro-HTPB (NHTPB), then blended with nitrocellulose (NC) at different ratios
Mohammed Jouini   +7 more
doaj   +1 more source

A Unique Hybrid Propulsion System Design for Large Space Boosters [PDF]

open access: yes
A study was made of the application of hybrid rocket propulsion technology to large space boosters. Safety, reliability, cost, and performance comprised the evaluation criteria, in order of relative importance, for this study.
Rodgers, Frederick C.
core   +1 more source

Nitramine smokeless propellant research [PDF]

open access: yes
A transient ballistics and combustion model is derived to represent the closed vessel experiment that is widely used to characterize propellants. A computer program is developed to solve the time-dependent equations, and is applied to explain aspects of ...
Cohen, N. S., Strand, L. P.
core   +1 more source

Mars Ascent Vehicle Hybrid Propulsion Configuration [PDF]

open access: yes
As part of a Mars Sample Return (MSR) campaign, two Mars Ascent Vehicle (MAV) configurations have been designed in parallel. Each ascent vehicle configuration has a different propulsion system which ultimately leads to two unique vehicle designs. As part
Schnell, Andrew, Yaghoubi, Darius
core   +1 more source

Propellant variability assessment [PDF]

open access: yes
Efforts to determine whether rocket propellant density and modulus can be reliably measured using non-destructive ultrasonic techniques are reported.
Schad, Kristin, Tytula, Thomas P.
core   +1 more source

Application of aluminum-based micro-cell composite fuel in HTPB propellant

open access: yesJournal of Measurement Science and Instrumentation
To study the combustion performance of aluminum-based micro-cell composite fuel aluminum@ammonium perchlorate(Al@AP), in hydroxyl-terminated polybutadiene (HTPB) solid propellant, the Al@AP was added to HTPB solid propellant instead of Al powder and part
ZHOU Zhipeng   +7 more
doaj  

Nitrous Oxide/Paraffin Hybrid Rocket Engines [PDF]

open access: yes
Nitrous oxide/paraffin (N2OP) hybrid rocket engines have been invented as alternatives to other rocket engines especially those that burn granular, rubbery solid fuels consisting largely of hydroxyl- terminated polybutadiene (HTPB).
Snyder, Gary, Zubrin, Robert
core   +1 more source

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