소형 무인 비행체 조종면 작동용 압전 복합재료 작동기 연구 = Piezo-Composite Actuator for Control Surface of a Small Unmanned Air Vehicle

국문 초록 (Abstract)

본 논문은 기존의 유/공압 및 전기식 모터를 대체할 수 있는 경량, 고성능 지능소자 구동기를 설계/제작하고 이를 소형 무인비행체의 조종익 시스템에 적용 가능성을 연구한 것이다. 또한 압전 복합재료 작동기에 대한 성능평가를 수행하였으며, 유니모프 및 바이모프 형태의 작동기를 제작하여 각각의 작동 특성을 확인하였다. 이와 같은 성능시험 평과 결과를 통해 바이모프 형태의 작동기가 하중 유무와 무관하게 선형적인 받음각 변화를 가짐을 알 수 있었다. 이러한 지능소자 구동 시스템은 소형 로봇, 유도무기 및 MAV, UAV의 조종익 제어 시스템으로 사용될 수 있는 가능성을 확인하였다.

다국어 초록 (Multilingual Abstract)

The purpose of the present study is to develop lightweight and simple smart actuators in order to replace conventional hydraulic/pneumatic actuators, and to apply the developed actuators to the actuation systems of a small unmanned air vehicle. This research describes the procedures of design, manufacturing of the piezo-composite actuator, and the performance evaluation. From the test results of the developed devices, we found the possibility of piezo-composite actuator could be used as a control surface of a small UAV system. We have designed and manufactured two kinds of piezo-composite actuators, unimorph actuator and bimorph actuator. The manufactured actuators were evaluated through the performance testes. It was found that the bimorph type actuator showed more linear angle change for the same excitation voltage variation than unimorph type. It is expected that piezo-composite actuator has a possibility to be used not only as a control surface of small unmanned flying vehicle but also as a control surface actuator of a guided missile fin through the miniaturization of power supply and control system.

참고문헌 (Reference)

1 Kim, K.Y, "Performance Evaluation of LightweightPiezo-composite Actuators" A120 : 123-129, 2005

2 Ron Barrett, "Missile Flight Control Using Active Flexspar Actuators" 5 : 121-128, 1996

3 Kim, K.Y, "Experimental Performance Evaluation and Comparisonfor Lightweight Piezo-Composite Actuator LIPCA" 16 (16): 41-47, 2003

4 Park, K.H, "Development of Lightweight Piezo-composite Curved Actuator" 30 (30): 94-100, 2002

5 Yoon, K.J, "Analytical Design Model for Piezo-CompositeUnimorph Actuator and Its Verification Using LightweightPiezo- Composite Curved Actuators" 13 : 1-9, 2004

6 Jennifer L. Pinkerton, "AFeasibility Study for Control Airfoil Shape using THUNDERTM" 4767-, 1997

7 Park, K.H, "A Study on Control Surface Actuation Using SmartActuator" 2007