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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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PERFORMANCE DEPENDENCY OF 120 mm MORTAR ON AMBIENT TEMPERATURE CONDITIONS

Volume 12, Numéro 6, 2013, pp. 529-545
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2013005728
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RÉSUMÉ

In this study, the results from two series of test firings are analyzed to determine the effect of ambient temperature on the overall performance of the 120 mm mortar system, using an instrumented mortar simulator (IMS). The IMS is equipped with pressure transducers at multiple axial and circumferential locations along the tube, and the muzzle velocity of the projectiles is measured with two separate radar systems. A total of 147 firings were conducted at −45, 21, or 63° C with various charge increment and flash tube configurations. Previous flash tube and ignition cartridge component tests conducted by this research team have demonstrated that the venting of flash tube products into the granular propellant bed of the ignition cartridge is highly nonuniform; therefore, about half of the firings were performed with mortar rounds whose ignition cartridge contained a flash tube modified to reduce this nonuniformity. In this way, the impact of the modified flash tube on the overall performance of the mortar system can be studied as well as the initial temperature effect. It was determined that the sensitivity of the muzzle velocity to the initial temperature is essentially constant throughout the range of temperatures tested, though the standard deviation of the muzzle velocities measured for the −46° C firings is approximately double that for the 21 and 63° C firings. The flash tube modification was found to have a significant effect only for the −46° C firings, where it resulted in reduced muzzle velocity and reduced standard deviation of muzzle velocity.

CITÉ PAR
  1. Rogaev Konstantin, Ishchenko Aleksandr, Burkin Viktor, Kasimov Vladimir, Diachkovskii Alexei, Samorokova Nina, Zykova Angelica, Rifle shot upgrading by using model paste-like propellant, 2103, 2019. Crossref

  2. Diachkovskii Alexei, Zykova Angelica, Ishchenko Aleksandr, Kasimov Vladimir, Samorokova Nina, Determining the parameters of the combustion law of the travelling charge propellant in 30-mm ballistic installation shot, 2103, 2019. Crossref

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