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High-precision coupled method for interior ballistics of gun with self-sealing band.

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Title: High-precision coupled method for interior ballistics of gun with self-sealing band.
Authors: Cui, X.1 (AUTHOR), Lei, Y.2 (AUTHOR), Su, D.1 (AUTHOR), Huang, Y.1,2 (AUTHOR) hy@njust.edu.cn, Wang, H.1 (AUTHOR)
Source: Aeronautical Journal. Nov2025, Vol. 129 Issue 1341, p3004-3029. 26p.
Abstract: The impact of the self-sealing band on interior ballistics is investigated during the gun launching, and a high-precision interior ballistics coupling algorithm that takes leakage into account is proposed. This study focuses on a 65 mm short-barrel, equal-caliber balanced cannon, integrating Abaqus finite element software with an interior ballistics calculation programme. It uses a User-defined AMPlication Load (VUAMP) subroutine to achieve real-time coupling calculations of the chamber pressure and self-sealing band deformation, correcting variations in the chamber pressure. Experimental results show that the coupling algorithm offers the higher precision compared to traditional interior ballistics models and can effectively capture the impact of leakage on the interior ballistics performance. Further research reveals that changes in the charge amount and assembly gap significantly affect the sealing performance of the self-sealing band and the leakage of propellant gases, which in turn influence the chamber pressure and projectile velocity. The high-precision coupling algorithm proposed in this paper provides the effective theoretical support for the design of the self-sealing band and the analysis of cannon performance. [ABSTRACT FROM AUTHOR]
Copyright of Aeronautical Journal is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 189013976
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  Data: High-precision coupled method for interior ballistics of gun with self-sealing band.
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  Data: <searchLink fieldCode="AR" term="%22Cui%2C+X%2E%22">Cui, X.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lei%2C+Y%2E%22">Lei, Y.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+D%2E%22">Su, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Y%2E%22">Huang, Y.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> hy@njust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+H%2E%22">Wang, H.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Aeronautical+Journal%22">Aeronautical Journal</searchLink>. Nov2025, Vol. 129 Issue 1341, p3004-3029. 26p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The impact of the self-sealing band on interior ballistics is investigated during the gun launching, and a high-precision interior ballistics coupling algorithm that takes leakage into account is proposed. This study focuses on a 65 mm short-barrel, equal-caliber balanced cannon, integrating Abaqus finite element software with an interior ballistics calculation programme. It uses a User-defined AMPlication Load (VUAMP) subroutine to achieve real-time coupling calculations of the chamber pressure and self-sealing band deformation, correcting variations in the chamber pressure. Experimental results show that the coupling algorithm offers the higher precision compared to traditional interior ballistics models and can effectively capture the impact of leakage on the interior ballistics performance. Further research reveals that changes in the charge amount and assembly gap significantly affect the sealing performance of the self-sealing band and the leakage of propellant gases, which in turn influence the chamber pressure and projectile velocity. The high-precision coupling algorithm proposed in this paper provides the effective theoretical support for the design of the self-sealing band and the analysis of cannon performance. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Aeronautical Journal is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1017/aer.2025.10032
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      – Code: eng
        Text: English
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        PageCount: 26
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            NameFull: Su, D.
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              M: 11
              Text: Nov2025
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              Y: 2025
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              Value: 129
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