Study on the Flutter Prediction of the Miniature Guided-bullet Control Surface System

Lee, Seongheon; Cho, Youngki; Cho, Hanjin; Bang, Hyochoong

doi:2017.20.1.148

J. KIMS Technol > Volume 20(1); 2017 > Article

Journal of the Korea Institute of Military Science and Technology 2017;20(1):148-157.
DOI: https://doi.org/10.9766/KIMST.2017.20.1.148

Study on the Flutter Prediction of the Miniature Guided-bullet Control Surface System

Seongheon Lee, Youngki Cho, Hanjin Cho, Hyochoong Bang

¹Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology
²Core Tech R&D Lab, LIG Nex1

초소형 유도탄 구동날개 시스템의 플러터 예측에 관한 연구

이성헌, 조영기, 조한진, 방효충

¹한국과학기술원 항공우주공학과
²LIG넥스원(주) 핵심기술 연구센터

Abstract

Miniature guided-bullet is an advanced military technology of developing guided missile which is designed to hit a target precisely while having easily carriable miniature size. A key issue of developing such system involves size reduction of the original guided missile system, and this in turn arouses stiffness issue regarding small and thin sized control surface. In this study, procedures on how to calculate the critical flutter speed of special type of control surface with the change of its dimension or material property is arranged. During this procedure, design parameters related to critical flutter speed are abridged to help preliminary design of similar structure even faster than time-consuming, and cumbersome computer analysis.

Key Words: Miniature Guided-bullet, Flutter, Piezoelectric Actuator