Results 101 to 110 of about 17,267 (230)

Design Mode Analysis of Pareto Solution Set for Decision-Making Support

open access: yesJournal of Applied Mathematics, 2014
Decision making in engineering design problems is challenging because they have multiple and conflicting criteria and complex correlation between design parameters.
Satoru Hiwa   +2 more
doaj   +1 more source

3D printed different polymer fuel grains for hybrid rocket engine

open access: yesFirePhysChem
The advent of various additive manufacturing technologies, such as 3D printing, has changed the structural design and preparation process of rocket fuels.
Xiaodong Yu   +5 more
doaj   +1 more source

Design Optimization of Gas Generator Hybrid Propulsion Boosters [PDF]

open access: yes
A methodology used in support of a study for NASA/MSFC to optimize the design of gas generator hybrid propulsion booster for uprating the National Space Transportation System (NSTS) is presented.
Fink, Larry   +2 more
core   +2 more sources

Модель гибридного ракетного двигателя. Вычисления, проект и испытания [PDF]

open access: yes, 2009
На даний час і у майбутньому ракетні двигуни будуть найголовнішими засобами виводу на орбіту космічних транспортних апаратів. В даний час найважливішою вимогою при проектуванні двигуна ракети є зменшення її вартості і максимальне збільшення енерговіддачі.
Folusiak, M.   +5 more
core  

Space Propulsion Technology Program Overview [PDF]

open access: yes
The topics presented are covered in viewgraph form. Focused program elements are: (1) transportation systems, which include earth-to-orbit propulsion, commercial vehicle propulsion, auxiliary propulsion, advanced cryogenic engines, cryogenic fluid ...
Escher, William J. D.
core   +1 more source

Hybrid bearings for LH2 and LO2 turbopumps [PDF]

open access: yes
Hybrid combinations of hydrostatic and ball bearings can improve bearing performance for liquid hydrogen and liquid oxygen turbopumps. Analytic studies were conducted to optimize hybrid bearing designs for the SSME-type turbopump conditions.
Butner, M. F., Lee, F. C.
core   +1 more source

Final design report of a personnel launch system and a family of heavy lift launch vehicles [PDF]

open access: yes
The objective was to design both a Personnel Launch System (PLS) and a family of Heavy Lift Launch Vehicles (FHLLVs) that provide low cost and efficient operation in missions not suited for the Shuttle.
Burton, Lee   +7 more
core   +1 more source

Space Storable Rocket Technology (SSRT) basic program [PDF]

open access: yes
The Space Storable Rocket Technology Program (SSRT) was conducted to establish a technology for a new class of high performance and long life bipropellant engines using space storable propellants. The results are described.
Casillas, A. R.   +3 more
core   +1 more source

Civil Space Technology Initiative: a First Step [PDF]

open access: yes
This is the first published overview of OAST's focused program, the Civil Space Technology Initiative, (CSTI) which started in FY88. This publication describes the goals, technical approach, current status, and plans for CSTI.

core   +1 more source

Evaluation of Photodiode Arrays for Use in Rocket Plume Monitoring and Diagnostics [PDF]

open access: yes, 1994
The spectroscopic analysis of plume emissions is a non-intrusive method which has been used to check for fatigue and possible damage throughout the pumps and other mechanisms in a rocket motor or engine.
Cole, Reagan   +3 more
core   +1 more source

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