Zobrazeno 1 - 10
of 22
pro vyhledávání: '"R. T. Bechtel"'
Publikováno v:
Journal of Spacecraft and Rockets. 30:323-327
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db83f5408871c012f5c89a2aadf7bc8c
https://doi.org/10.2514/3.25517
https://doi.org/10.2514/3.25517
Publikováno v:
30th Aerospace Sciences Meeting and Exhibit.
Space Station Freedom (SSF) will be the largest and highest power spacecraft that the U.S. has put into orbit. The solar array will generate 160 volts nominal when in sunlight, and the present baseline design is for the negative end of the solar arra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::235d9a28b500364b713cc4e890619104
https://doi.org/10.2514/6.1992-820
https://doi.org/10.2514/6.1992-820
Autor:
R. T. Bechtel, V. K. Rawlin
Publikováno v:
12th International Electric Propulsion Conference.
The results of extensive testing of two 30-cm ion thrusters which are virtually identical to the 900 series Engineering Model Thruster in an ongoing 15,000-hour life test are presented. Performance data for the nominal fullpower (2650 W) operating po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0411e273e03a6a3a3c51055b527fed34
https://doi.org/10.2514/6.1976-1033
https://doi.org/10.2514/6.1976-1033
Publikováno v:
16th International Electric Propulsion Conference.
Three Hg propellant isolators (two cathode and one main) failed during testing in the Mission Profile Life Test. These failures involved contamination of the surface of the alumina insulating body which resulted in heating of the vaporizer by leakage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe758aa358b05a9c46ff2e9be52453f1
https://doi.org/10.2514/6.1982-1907
https://doi.org/10.2514/6.1982-1907
Autor:
R. T. Bechtel
Publikováno v:
15th International Electric Propulsion.
The 30 cm J Series Thruster has been base-lined for the Solar Electric Propulsion Vehicle. This paper discusses the evolution of the thruster and details its performance, lifetime, and operational characteristics. An operational envelope covering nom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ac6f5c6717993137ee950fdbd9a9327
https://doi.org/10.2514/6.1981-714
https://doi.org/10.2514/6.1981-714
Publikováno v:
16th International Electric Propulsion Conference.
This paper describes the status of the 30-cm J-series mercury ion thruster. This thruster was baselined for the Solar Electric Propulsion System (SEPS) vehicle. This thruster is described and several modifications plus suggested modifications are pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f006a7c55424bb84eb170c53c77e9cd2
https://doi.org/10.2514/6.1982-1904
https://doi.org/10.2514/6.1982-1904
Publikováno v:
16th International Electric Propulsion Conference.
An automated test facility capable of simultaneously operating three 2.5 kW, 30-cm mercury ion thrusters and their power processors is described, along with a test program conducted for the documentation of thruster characteristics as a function of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a26f8efedb3566d75ad8fc58b913f5cc
https://doi.org/10.2514/6.1982-1903
https://doi.org/10.2514/6.1982-1903
Autor:
R. T. Bechtel, E. L. James
Publikováno v:
15th International Electric Propulsion.
A series of long term test segments of 30 cm diameter mercury bombardment thrusters is being conducted as the Mission Profile Life Test. The first 4000 hour segment has been completed with the J series thruster, J1. Thruster and power processing unit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f3a30ad1f7989f371d854595e40a4bd
https://doi.org/10.2514/6.1981-716
https://doi.org/10.2514/6.1981-716
Publikováno v:
16th International Electric Propulsion Conference.
Seven J series 30-cm diameter thrusters have been tested in segments of up to 5,070 hr, for 14,541 hr in the Mission Profile Life Test facility. Test results have indicated the basic thruster design to be consistent with the lifetime goal of 15,000 h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a654d755205c8c25222fee519abd3439
https://doi.org/10.2514/6.1982-1905
https://doi.org/10.2514/6.1982-1905
Publikováno v:
13th International Electric Propulsion Conference.
Two 30-cm ion thruster technology areas are investigated in support of the extended-performance thruster operation required for the Halley's comet rendezvous mission. These areas include an evaluation of the thruster performance and lifetime characte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbadcc1e77e35503908070e330f3556f
https://doi.org/10.2514/6.1978-666
https://doi.org/10.2514/6.1978-666