Computer Science – Performance
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991fsa..workv....k&link_type=abstract
In NASDA, Future Space Activities Workshop: Lunar Base Workshop 1991 17 p (SEE N92-33753 24-91)
Computer Science
Performance
Japanese Spacecraft, Orbit Transfer Vehicles, Orbital Maneuvering Vehicles, Propulsion System Configurations, Propulsion System Performance, Reusable Launch Vehicles, Space Transportation, Spacecraft Design, Earth Orbits, Functional Design Specifications, Geosynchronous Orbits, Hydrogen Oxygen Engines, Lunar Orbits, Specific Impulse, Thermodynamic Cycles
Scientific paper
A conceptual study of the Orbit Transfer Vehicle (OTV) is conducted on the overall systems and propulsion systems. The premises for the study are: (1) OTV is mounted on the 2nd-stage of an H-2 launch vehicle and injected into Low Earth Orbit (LEO); and (2) OTV can be used for multiple missions such as lunar and planet exploration and geostationary missions. The results of orbit calculation for several missions are shown, and the system features, mass and power balance, and system structure of the OTV are presented. The results of reviews on the transportation capability, types of engine (specific impulse, thrust, and engine cycles), and performance and characteristics of main propulsion system are outlined. Main technical problems to be solved for realizing the propulsion system are: (1) high performance turbopump and heat exchanger development for LOX/LH2 expander cycle engine; and (2) engine low expansion section and deployment mechanism.
Kaneko Kazuhisa
Katou Kouhei
Kawazoe Takeshi
Tanaka Toshiyuki
Yamamoto Masaya
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