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- W2325755612 abstract "A multi-thruster array test was executed at NASA Glenn Research Center, focusing on the characterization of individual thruster, and array, performance and behavior – as affected by the simultaneous operation of multiple ion thrusters; a key step in development of the NEXT ion propulsion system. The subject of this characterization effort was a four engineering model NEXT thruster array in a 3+1 flight-representative configuration where one thruster was dormant (a spare). This test was executed concurrent with detailed plasma environments and plume measurements documented elsewhere. The array was operated over a broad range of conditions including the simultaneous firing of 3 thrusters at 20.6 kW total input power, yielding a total thrust of about 710 mN, at 4190 seconds specific impulse and approximately 71 percent efficiency. Major findings from a series of tests include: the performance observed for a thruster during operation in an array configuration appears to be consistent with that measured during singular thruster operation with no apparent deleterious interactions; and, operation of 1 neutralizer to neutralize 2-or-more thruster beams appears to be a potentially viable fault-recovery mode, and viable system architecture with significant system performance advantages. Overall, the results indicating single thruster operations are generally independent of array configuration have potentially significant implications with respect to testing requirements and architectural flexibility for multi-thruster systems." @default.
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- W2325755612 date "2006-07-09" @default.
- W2325755612 modified "2023-10-18" @default.
- W2325755612 title "NEXT Multi-Thruster Array Test - Engineering Demonstration" @default.
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- W2325755612 doi "https://doi.org/10.2514/6.2006-5180" @default.
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