Journal of Aerospace System Engineering (항공우주시스템공학회지)
- Volume 8 Issue 1
- /
- Pages.1-6
- /
- 2014
- /
- 1976-6300(pISSN)
- /
- 2508-7150(eISSN)
DOI QR Code
Improvement of a Hydraulic Circuit for an Electro-Hydrostatic Actuator Equipped with a Single Rod Cylinder
편로드 실린더 구동 EHA의 유압 회로 개선
Abstract
The conventional hydraulic circuits for electro-hydrostatic actuators equipped with a single-rod cylinder can oscillate under overrunning load conditions. In this paper the oscillation problem encountered in the conventional hydraulic circuits for EHAs is analyzed and it is shown by simulation results that this problem can be solved by employing a counter balance valve instead of a pilot-operated check valve generally used in the conventional hydraulic circuits.
Keywords
- Electro-Hydrostatic Actuator;
- Single-rod Cylinder;
- Pilot-operated Check Valve;
- Counter Balance Valve;
- Circuit Oscillation