This thesis tests the effects a commercial silver paste has on the damage at the projectile-rail interface of a 4” long rail gun test section. Projectiles (0.635 x 0.635 x 0.953 cm) were pushed through the rail test section at 34 ± 19 m/s, while average current densities of 18-32 kA/cm2 was passed through the projectile – rail interface material. The specific objective is to examine rail and projectile damage at current densities near or above those (» 25kA/cm2) anticipated for a naval rail gun. Voltages across the rails were monitored and changes in conductivity when solid electrical contact was broken were observed. Silver deposits were observed on the rails from the paste at a peak current of 13.3 kA, while no damage was seen on the rails until a peak current of 17.2 kA was reached, which corresponds to average current densities of 22 kA/cm2 and 28.5 kA/cm2, respectively.
Populaire auteurs
Cram101 Textbook Reviews (948) J.S. Bach (447) Wolfgang Amadeus Mozart (306) Collectif (268) Schrijf als eerste een recensie over dit item (265) Doug Gelbert (238) Charles Dickens (222) Princess of Patterns (211) Jules Verne (199) R.B. Grimm (197) William Shakespeare (190) Anonymous (188) Carolyn Keene (187) Gilad Soffer (187) Mark Twain (187) Philipp Winterberg (181) Edgar Allan Poe (173) Youscribe (172) Lucas Nicolato (170) Herman Melville (169)Populaire gewichtsboeken
418 KB 425 KB 435 KB 459 KB 474 KB 386 KB 445 KB 439 KB 455 KB 413 KB 432 KB 421 KB 471 KB 493 KB 472 KB 485 KB 416 KB 451 KB 369 KB 427 KB