양방향 압전-유압 하이브리드 구동장치의 성능 시험 = Performance Evaluation of a Bidirectional Piezoelectric Hybrid Actuator

다국어 초록 (Multilingual Abstract)

Piezoelectric-based hydraulic actuator is a hybrid device consisting of a hydraulic pump driven by piezoelectric stacks that is coupled to a conventional hydraulic cylinder via a set of fast-acting valves. Nowadays, such hybrid actuators are being researched and developed actively in many developed countries by requirement of high performance and compact flight system. In this research, a piezoelectric hybrid actuator has been designed and tested. To achieve bi-directional capabilities in the actuator, solenoid valves were used to control the direction of output fluid. The experimental testing of the actuator in uni-directional and bi-directional modes was performed to examine performance issues related to the solenoid valves. The results showed that the bi-directional performance was slightly lower than uni-directional performance due to air bubble developed in the valve system. A new design to solve the vacuum problem has been proposed to improve the performance of the hybrid actuator.

참고문헌 (Reference)

1 L. D. Mauck., "Piezoelectric Hydraulic Pump Development" 11 (11): 758-764, 2000

2 Z. F. Xuan., "Performance of Piezo-Stacks for a Piezoelectric Hybrid Actuator by Experiments" 2014

3 Z. F. Xuan, "Performance Testing of an Integrated Hybrid Actuator" Unversity of Konkuk 2012

4 H. Tan., "Performance Modeling of a Piezohydraulic Actuation System with Active Valves" 14 (14): 91-110, 2005

5 C. Cadou., "Performance Modeling of a Piezo-Hydraulic Actuator" 149-164, 2003

6 A. Chaudhuri., "Experimental Validation of a Hybrid Electrostrictive Hydraulic Actuator Analysis" 132 (132): 2010

7 S. L. Herdic, "Development of Piezo-Hydraulic Actuation Systems Technology for Use on a Helicopter Tailing Edge Flap" Georgia Institute of Technology 2005

8 J. E Lindler., "Design and Testing of Piezoelectric-Hydraulic Actuators" 5054 : 96-107, 2003

9 J. Sirohi., "Design and Development of a High Pumping Frequency Piezoelectric-Hydraulic Hybrid Actuator" 14 (14): 13-147, 2003