강선율 최적설계에 관한 연구 = A Study on the Optimal Design of Rifling Rate

다국어 초록 (Multilingual Abstract)

Rifling force has a torsion impulse effect on the gun tube and thus generates undesirable vibration of the gun tube about its bore axis, putting additional stress on the projectile. High rifling force at the muzzle of the gun tube may adversely influence the trajectory of the projectile. And, the service life of rifled gun barrels is known to depend on the rifling force. Rifling force along the path of the projectile in the longitudinal direction of the gun tube can be described with projectile mass, projectile velocity, gas pressure curve and rifling angle. Under the same conditions, the character of the rifling of the gun barrel decisively influences the rifling force curve. To reduce the above mentioned harmful effect, locally distinct maximum of rifling force has to be avoided and maximum rifling force needs to be minimized. The best way to minimize the maximum rifling force is to design a rifling angle function so that the rifling force curve has a near trapezoidal shape. In this paper a new approach to make the optimal rifling force curve is described. The rifling angle determining the rifling force is developed by combined Fourier series and polynomial function to satisfy both the convergence and boundary condition matching problems.

참고문헌 (Reference)

• 1 Park,Kyung Jo, "Robot Path Design to Reduce Tip Residual Vibration" KAIST 1992
• 2 Lee,Young Hyun, "Path Design to Reduce Residual Vibration for a Two-Link Mechanism and its Experimental Test" KAIST 1994
• 3 G. Backstein, "Handbook on Weaponry" Rheinmetall GmbH 576-578, 1982
• 4 Herbert Krumm, "Gun Barrel Equipped with Optimized Rifling"
• 5 C.H.Suh, "Computer Aided Design of Mechanisms,Part B" Panghan Publishing Company 845-873, 1984