Research on Recoil Process of Electromagnetic Railgun

doi:10.3969/j.issn.1000-1093.2015.02.006

Abstract

Abstract: The railgun recoil motion characteristic in launching is analyzed. And the recoil motion can be divided into three periods by armature position: armature launching in bore period, residual electric energy release period and inertia recoil period. The motion of each period is decomposed into free recoil motion and restrain recoil motion. The barrel's recoil motion characteristic in each period is analyzed. The recoil motion law of each period is solved using the motion equation and the force balance equation based on the internal ballistic calculation results and the design parameters of railgun. Taking a certain diameter electromagnetic railgun for example, on the premise of 10 kN for initial recoil resistance force, and 20 mm for total recoil distance, recoil resistance constant is calculated as 22.728 kN, the total recoil time is 92.32 ms, and the recoil motion curve is obtained. The calculation method and results can provide the basis for designing the braker and recuperator of railgun.

Key words: ordnance science and technology, railgun, recoil force, recoil resistance, free recoil motion, recoil motion

CLC Number:

O313.3
TJ02

SHI Jiang-bo， LI Bao-ming. Research on Recoil Process of Electromagnetic Railgun[J]. Acta Armamentarii, 2015, 36(2): 227-233.

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