Influence of Rotating Band Construction on Gun Tube Loading: Part II: Measurement and Analysis

Juha Toivola, Moilanen, Janne Tervokoski, Heikki Keinänen

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)

Abstract

The soft deformable metallic rotating band of large caliber projectiles prevents the gas leakage between the gun tube wall and the shell body by the band pressure on contact surfaces during the launch cycle of the gun. High rotating band pressures can lead to problems concerning gun tube wear, fatigue, and strength. The effects of changes in construction of rotating band and long range artillery projectile shell body on gun tube loading are studied experimentally. A practical analysis method for tube inner wall pressure computation from outer wall strain measurements is presented. The method is based on assuming stepped pressure load affecting on tube inner wall surface, when the projectile passes the measurement point. Although the analysis method was simplified, it was found to give useful and reliable results for comparative verification of different shell and band structures and their influences on gun tube loading. The structural design of the shell body and the rotating band were shown to be the most important aspects to cause the extreme loadings on the gun tube.
Original languageEnglish
Article number041007
Number of pages8
JournalJournal of Pressure Vessel Technology
Volume134
Issue number4
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

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Projectiles
Strain measurement
Leakage (fluid)
Structural design
Band structure
Wear of materials
Fatigue of materials
Gases

Cite this

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title = "Influence of Rotating Band Construction on Gun Tube Loading: Part II: Measurement and Analysis",
abstract = "The soft deformable metallic rotating band of large caliber projectiles prevents the gas leakage between the gun tube wall and the shell body by the band pressure on contact surfaces during the launch cycle of the gun. High rotating band pressures can lead to problems concerning gun tube wear, fatigue, and strength. The effects of changes in construction of rotating band and long range artillery projectile shell body on gun tube loading are studied experimentally. A practical analysis method for tube inner wall pressure computation from outer wall strain measurements is presented. The method is based on assuming stepped pressure load affecting on tube inner wall surface, when the projectile passes the measurement point. Although the analysis method was simplified, it was found to give useful and reliable results for comparative verification of different shell and band structures and their influences on gun tube loading. The structural design of the shell body and the rotating band were shown to be the most important aspects to cause the extreme loadings on the gun tube.",
author = "Juha Toivola and Moilanen and Janne Tervokoski and Heikki Kein{\"a}nen",
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language = "English",
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journal = "Journal of Pressure Vessel Technology",
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Influence of Rotating Band Construction on Gun Tube Loading : Part II: Measurement and Analysis. / Toivola, Juha; Moilanen; Tervokoski, Janne; Keinänen, Heikki.

In: Journal of Pressure Vessel Technology, Vol. 134, No. 4, 041007, 2012.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Influence of Rotating Band Construction on Gun Tube Loading

T2 - Part II: Measurement and Analysis

AU - Toivola, Juha

AU - Moilanen, null

AU - Tervokoski, Janne

AU - Keinänen, Heikki

N1 - Project code: 33207

PY - 2012

Y1 - 2012

N2 - The soft deformable metallic rotating band of large caliber projectiles prevents the gas leakage between the gun tube wall and the shell body by the band pressure on contact surfaces during the launch cycle of the gun. High rotating band pressures can lead to problems concerning gun tube wear, fatigue, and strength. The effects of changes in construction of rotating band and long range artillery projectile shell body on gun tube loading are studied experimentally. A practical analysis method for tube inner wall pressure computation from outer wall strain measurements is presented. The method is based on assuming stepped pressure load affecting on tube inner wall surface, when the projectile passes the measurement point. Although the analysis method was simplified, it was found to give useful and reliable results for comparative verification of different shell and band structures and their influences on gun tube loading. The structural design of the shell body and the rotating band were shown to be the most important aspects to cause the extreme loadings on the gun tube.

AB - The soft deformable metallic rotating band of large caliber projectiles prevents the gas leakage between the gun tube wall and the shell body by the band pressure on contact surfaces during the launch cycle of the gun. High rotating band pressures can lead to problems concerning gun tube wear, fatigue, and strength. The effects of changes in construction of rotating band and long range artillery projectile shell body on gun tube loading are studied experimentally. A practical analysis method for tube inner wall pressure computation from outer wall strain measurements is presented. The method is based on assuming stepped pressure load affecting on tube inner wall surface, when the projectile passes the measurement point. Although the analysis method was simplified, it was found to give useful and reliable results for comparative verification of different shell and band structures and their influences on gun tube loading. The structural design of the shell body and the rotating band were shown to be the most important aspects to cause the extreme loadings on the gun tube.

U2 - 10.1115/1.4006355

DO - 10.1115/1.4006355

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JO - Journal of Pressure Vessel Technology

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