Numerical analysis of projectile-launch tube wall friction effects on projectile acceleration in single-stage gun

Hiroaki Miura, Akiko Matsuo

研究成果: Conference contribution

抄録

The effects of the friction between the projectile and launch-tube wall in a single-stage gun are examined by the interior ballistics simulations. The solid/gas two-phase flow code for two-dimensional axisymmetric calculation is used in the simulations. In this study, one-dimensional quasi-steady-state elastic relations are applied to the projectile in the estimation of the friction force. The calculation method is validated by the comparison of the simulated results with the experimental data such as the histories of the breech pressure and the projectile acceleration. The simulated results reveal that the impact of the shock waves to the base increases the friction force acting on the projectile. The large friction force in the tight fit case decelerates the projectile, consequently intensifying the chamber pressure. The muzzle velocity decreases with the increase of the projectile diameter, and this appears strongly in the low chamber pressure case.

本文言語English
ホスト出版物のタイトルExplosion, Shock Wave and Hypervelocity Phenomena in Materials II - Selected, peer reviewed papers from the 2nd International Symposium on Explosion, Shock Wave and Hypervelocity Phenomena (ESHP-2)
出版社Trans Tech Publications Ltd
ページ71-76
ページ数6
ISBN(印刷版)0878494650, 9780878494651
出版ステータスPublished - 2008 1 1
イベント2nd International Symposium on Explosion, Shock Wave and Hypervelocity Phenomena, ESHP-2 - Kumamoto, Japan
継続期間: 2007 3 62007 3 9

出版物シリーズ

名前Materials Science Forum
566
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Conference

Conference2nd International Symposium on Explosion, Shock Wave and Hypervelocity Phenomena, ESHP-2
CountryJapan
CityKumamoto
Period07/3/607/3/9

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

フィンガープリント 「Numerical analysis of projectile-launch tube wall friction effects on projectile acceleration in single-stage gun」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル