Simulation Study of Bearing Band Engraving Process and Interior Ballistic Process Based on Thermo-mechanical Coupling FEA Model

DING Chuan-jun;ZHANG Xiang-yan

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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 ›› 2015, Vol. 36 ›› Issue (12) : 2254-2261. DOI: 10.3969/j.issn.1000-1093.2015.12.007
Paper

Simulation Study of Bearing Band Engraving Process and Interior Ballistic Process Based on Thermo-mechanical Coupling FEA Model

  • DING Chuan-jun,ZHANG Xiang-yan
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Abstract

In order to study the dynamic interaction process of bearing band and barrel, a thermo-mechanical coupling finite element analysis (FEA) model is established. The engraving process of bearing band and interior ballistic process are simulated by the explicit finite element method with the use of Fortran subroutines. The FEA model is proved to be effective by comparing the calculated results with experimental results. The calculated results show that the coefficient of secondary work varies as a function of time, and an extremum value appears in the early time when using classical interior ballistic equation.The thermal softening of bearing band surface has a significant effect on the interior ballistic process during the band engraving. For fixed cartridge case,the computational accuracy of the engraving process and the interior ballistic process could be improved by taking account of extracting bullet force.

Key words

ordnance science and technology / bearing band engraving / thermo-mechanical coupling / extracting bullet force / finite element method

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DING Chuan-jun,ZHANG Xiang-yan. Simulation Study of Bearing Band Engraving Process and Interior Ballistic Process Based on Thermo-mechanical Coupling FEA Model. Acta Armamentarii. 2015, 36(12): 2254-2261 https://doi.org/10.3969/j.issn.1000-1093.2015.12.007

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