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http://dx.doi.org/10.9766/KIMST.2015.18.1.015

A Study on the Design of Rifling Angle by Setting up an Idealized Rifling Force Curve  

Cha, Kiup (The 5th Research and Development Institute, Agency for Defense Development)
Ahn, Sangtae (The 5th Research and Development Institute, Agency for Defense Development)
Cho, Changki (The 5th Research and Development Institute, Agency for Defense Development)
Choi, Euijung (The 5th Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.18, no.1, 2015 , pp. 15-21 More about this Journal
Abstract
Rifling Force can be described with projectile velocity, gas pressure and rifling angle, etc. Under the same conditions, the character of the rifling angle decisively influences the rifling force. To reduce the harmful effect, locally distinct maximum of rifling force has to be avoided. The optimal design methodology of rifling angle curve had been developed by combined Fourier series and polynomial function. When it was tried newly to design the rifling angle curve, this design trial caused not to produce the lower rifling force than the existing design. Normally, the curve of the rifling angle is designed first, then the rifling force is set according to the rifling angle curve. However during the cause analysis, new design methodology was established to design the ideal rifling force curve before the rifling angle design. With this new methodology, the above optimal design method was analyzed and its limitation was confirmed.
Keywords
Optimal Design; Rifling; Rifling Force; Rifling Rate; Rifling Angle;
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