High performance electromagnetic railgun launcher

dc.contributor.assigneeBoard of Regents, The University of Texas System
dc.creatorDennis R. Peterson
dc.creatorWilliam F. Weldon
dc.creatorJohn H. Gully
dc.creatorRaymond C. Zowarka, Jr.
dc.creatorDamon A. Weeks
dc.creatorMike L. Spann
dc.creatorJim L. Upshaw
dc.date.accessioned2019-10-23T21:44:41Z
dc.date.available2019-10-23T21:44:41Z
dc.date.filed1987-04-22
dc.date.issued1989-12-05
dc.description.abstractA railgun operates at high pressure (up to 350 MPa) without structural damage and is readily disassembled for inspection, maintenance and component testing. A rail assembly is pressed into a hoop-wound epoxy fiberglass containment tube and clamped within a steel compression frame. The geometry of the rail assembly permits rail movement without insulator intrusion and achieves bore sealing during rail movement at maximum pressure. The rail assembly also has replaceable insulator inserts which are isolated from rail re-bound shock. Fused quartz insulator inserts provide the best results. A flash tube is provided at the gun muzzle to suppress precursor discharge and commutate precursor current back to the armature. To realize increased velocity without sacrificing in-bore projectile stability, a cut-corner projectile is used having a L/D ratio as small as 0.65 which reduces the mass by about 11%.
dc.description.departmentBoard of Regents, University of Texas System
dc.identifier.applicationnumber7041183
dc.identifier.patentnumber4884489
dc.identifier.urihttps://hdl.handle.net/2152/77327
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/4416
dc.publisherUnited States Patent and Trademark Office
dc.relation.ispartofUniversity of Texas Patents
dc.relation.ispartofUniversity of Texas Patents
dc.rights.restrictionOpen
dc.rights.restrictionOpen
dc.subject.cpcF41B6/006
dc.subject.uspc89/8
dc.subject.uspc89/16
dc.titleHigh performance electromagnetic railgun launcher
dc.typePatent

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