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International Journal of Energetic Materials and Chemical Propulsion

Publication de 6  numéros par an

ISSN Imprimer: 2150-766X

ISSN En ligne: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

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INVESTIGATION OF A THRUSTER BASED ON A TRAVELING PROPELLANT CHARGE

Volume 14, Numéro 3, 2015, pp. 197-220
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015011152
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RÉSUMÉ

This study investigates a propulsion system that is based on a combustion chamber that ejects a traveling propellant charge through an exhaust tube. This concept is considered as a possible enhancement of the previously published study of a thruster expelling a solid weight by the adoption of unique propellants that were developed for the traveling propellant gun application. The unburned propellant of the traveling charge plays the role of the ejected weight, and the calculations show that it is a good way of reducing the overall weight of the system and increasing the generated impulse. The research includes developing an interior ballistics model, validation of the model by comparison to experimental results from traveling charge gun firings, and theoretical investigation of the proposed thruster performance. The study revealed that a specific impulse of slightly above 300 s, based on the propellant mass, can be obtained. By utilizing the traveling charge concept the solid ejected weight can be minimized and possibly eliminated. Such a thruster appears to be beneficial for trajectory corrections and attitude control of space vehicles, and as divert and attitude control system (DACS). The system's main advantages are the possibility of high specific impulse, the usage of only solid materials, and the ability to generate many discrete and accurate impulses.

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