A Study on Characteristics of Precession Motion for a Smart Munition

Ha, Do-Jun; Kim, Byoung-Soo; Kim, In-Keun; Song, Ho-In; Lee, Young-Jae

doi:2012.15.3.257

J. KIMS Technol > Volume 15(3); 2012 > Article

Journal of the Korea Institute of Military Science and Technology 2012;15(3):257-265.
DOI: https://doi.org/10.9766/KIMST.2012.15.3.257

A Study on Characteristics of Precession Motion for a Smart Munition

Do-Jun Ha, Byoung-Soo Kim, In-Keun Kim, Ho-In Song, Young-Jae Lee

¹KAI
²GNU & Research Center for Aircraft Parts Technology
³

지능형 탄두의 세차운동 특성 해석 및 연구

하도준, 김병수, 김인근, 송호인, 이영재

¹(주)한국항공우주산업
²경상대학교 & 항공기부품기술연구소
³(주)한화 종합연구소 화력/탄약 1실

Abstract

This paper presents a study on characteristics of precession motion of a smart munition. It's a kind of the Sensor Fuzed Weapon. The particular thing for the smart munition is that it has precession motion in the air while the sensor is searching the ground to detect ground vehicles such as tanks. The smart munition has a cylindrical shape and has a sensor attached on its side. Due to its non-uniform mass distribution, its center of gravity(CG) is located away from the center of volume(CV). In order for the smart munition to detect the target effectively, the ground searching pattern of sensor should have an uniform circular form, and for this, the precession motion of smart munition should be in its steady-state. Finally, it is necessary to choose the right initial conditions at the moment of firing, for the steady-state precession motion during flight.

Key Words: Smart Munition, Sensor Fuzed Weapon, Precession Motion