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The rotation of a stored cylinder body by an outer rotating structure.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

HEAT-grenades are wing-stabilized grenades using shaped charge technology. Theshaped charge is a method, producing a jet-beam, with the use of a copper linerin which the aim is to focus the detonation energy to be able to penetrate armourand structures. This jet-beam is only eective under a rotational frequency of 15Hz, any frequency above this and the produced jet-beam loses its eciency and willnot be able to penetrate its target. One approach to minimize the inner body'srotation is by using bearings. By the use of ball bearings the intention is to with-hold transferring the angular momentum from the outer rotating body to the innercylinder body. This thesis have been analysing how much rotation the warhead haveacquired from the outer rotation of the grenade divided in an acceleration phase anda ying phase. During the acceleration phase the rotation of the warhead is reach-ing a frequency of 0.35 Hz. Proposals are presented for improving and lowering therotational speeds for future studies.

Place, publisher, year, edition, pages
2019. , p. 24
Keywords [en]
Cylinder, Rotation, HEAT, Shaped Charge, Gessner
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:ltu:diva-75021OAI: oai:DiVA.org:ltu-75021DiVA, id: diva2:1330857
External cooperation
SAAB Dynamics
Educational program
Space Engineering, master's level
Examiners
Available from: 2019-06-26 Created: 2019-06-26 Last updated: 2019-06-26Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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