On Concentration Detection of FAE Cloud at High-speed Intersection between FAE Cloud and Sub-fuze

FU Shenghua;LOU Wenzhong;LI Chubao;PAN Xiaojian;WANG Jingkui;JI Tongan;LIU Weitong

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2021, Vol. 42 ›› Issue (5) : 897-902. DOI: 10.3969/j.issn.1000-1093.2021.05.001
Paper

On Concentration Detection of FAE Cloud at High-speed Intersection between FAE Cloud and Sub-fuze

  • FU Shenghua1,2， LOU Wenzhong1,2， LI Chubao3, PAN Xiaojian3, WANG Jingkui1,2, JI Tongan1,2, LIU Weitong1,2
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Abstract

The large-area detonation of the second-detonation fuel-air-explosive (FAE) warhead is related to the initiation control under the condition of optimal fuel cloud concentration when FAE cloud intersects with fuze at high speed. Based on the attenuation characteristics of the reflection coefficient of pulsed ultrasound in the cloud, a prototype of a FAE sub-fuze was developed, and a rocket sled test platform was built for detecting the intersection concentration of FAE cloud with the sub-fuze with rocket sled speeds of 75 m/s and 100 m/s. The curve of the sub-fuze dynamic recognition cloud concentration under high-speed environment and the gradient characteristics of pulse ultrasonic attenuation at different concentrations were obtained through test. The test results show that the proposed method can be used to obtain the high-speed intersection concentration identification of FAE cloud at the different speeds. The calculated error is not more than 15% at the nominal concentrations of 75 g/m3, 150 g/m3 and 225 g/m3.

Key words

fuel-air-explosiveprojectile / fuze / ultrasonicattenuation / rocketsled / high-speedintersection / concentrationdetection

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FU Shenghua， LOU Wenzhong， LI Chubao, PAN Xiaojian, WANG Jingkui, JI Tongan, LIU Weitong. On Concentration Detection of FAE Cloud at High-speed Intersection between FAE Cloud and Sub-fuze. Acta Armamentarii. 2021, 42(5): 897-902 https://doi.org/10.3969/j.issn.1000-1093.2021.05.001

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