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International Journal of Energetic Materials and Chemical Propulsion

Publicado 6 números por año

ISSN Imprimir: 2150-766X

ISSN En Línea: 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

Indexed in

Structure and Ballistic Properties of the Rheinmetall RH 49 Base Bleed Projectile

Volumen 1, Edición 1-6, 1991, pp. 227-239
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v1.i1-6.170
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SINOPSIS

In this paper we present our 155 mm Base Bleed Projectile RH 49 with bomblet submunition. This projectile is effective against semi hard targets at ranges up to 31 km. The shell carries 49 grenades of the type RH II with self-destruction device. The Base-Bleed unit which consists of two parts, gives an increase of range of 19−26 % when compared with RH 49 Base-Bleed inert at burning times of 26 - 36 sec, corresponding to average burning rates of 1,4 mm/sec at normal conditions and of 1 mm/sec at trajectories for maximum range. From radar measurements we calculate CD-values as a function of Mach-numbers. A typical curve for a baseburnprojectile is obtained this way.
During the burning of the Base-Bleed the drag coefficient of the projectile is almost independent on the velocity. After burn-out the Co-values approach the curve of the projectile with inert Base-Bleed unit.
To obtain a precise Co-curve during baseburning, we used a semi-empirical model developed at Rheinmetall for simulation of the Base-Bleed effect. This simulation is based on the theory of the outlet of a jet of gas from a reservoir. The simulation of the Base-Bleed effect is linked with a point mass trajectory model.

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