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A Rotating Chamber Mechanism and Its Controller for CTA Guns  

Lim, S. (MyongJi University)
Kim, K.K. (Yongin Songdam College)
Shim, J.S. (SeoMoon Technologies. Inc.)
Kil, S.J. (SeoMoon Technologies. Inc.)
Lee, G.H. (ADD)
Cha, G.U. (ADD)
Cho, C.K. (ADD)
Hong, S.K. (ADD)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.9, no.1, 2006 , pp. 50-59 More about this Journal
Abstract
Lately, there exist growing demands for the use of CTAs(Cased Telescoped Ammunitions) to increase the firepower of mid-calibre automatic guns despite spatial limitations of armament. In this paper, for automatic CTA guns a rotating chamber mechanism is designed based on parallel index concept. Via dynamic simulations it proves capable of smooth operation even at as high a firing rate as 200spm. Subsequently, motor controllers are synthesized to drive the chamber at any constant speed and also to control positions in the presence of large disturbances caused by the intermittently-rotating load. It is remarkable that we successfully adopted a disturbance observer to treat disturbances only with a moderate bandwidth of the closed-loop system.
Keywords
CTA(Cased Telescoped Ammunition); Parallel Index; DOB; Motor Control;
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