Journal of Aerospace System Engineering (항공우주시스템공학회지)
- Volume 8 Issue 2
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- Pages.7-13
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- 2014
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- 1976-6300(pISSN)
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- 2508-7150(eISSN)
DOI QR Code
Design of a Hydraulic Circuit for an Asymmetrically Dualized Electro-Hydrostatic Actuator
비대칭 이중화 EHA의 유압 회로 설계
-
Hong, Yeh-Sun
(Dept. of Aerospace Engineering, Sejong University)
;
- Kim, Sang-Seok (Hanhwa TechM Aerospace R&D Center) ;
- Kim, Dae-Hyun (Hanhwa TechM Aerospace R&D Center) ;
- Kim, Sang-Beom (Hanhwa TechM Aerospace R&D Center) ;
- Park, Sang-Joon (Hanhwa TechM Aerospace R&D Center) ;
- Choi, Kwan-Ho (Agency for Defense Development)
-
홍예선
(한국항공대학교 항공우주 및 기계공학부)
;
- 김상석 (한화테크엠(주) 항공우주연구소) ;
- 김대현 (한화테크엠(주) 항공우주연구소) ;
- 김상범 (한화테크엠(주) 항공우주연구소) ;
- 박상준 (한화테크엠(주) 항공우주연구소) ;
- 최관호 (국방과학연구소)
- Received : 2014.02.12
- Accepted : 2014.06.20
- Published : 2014.06.30
Abstract
In order to enable fail-safe operation the electro-hydrostatic actuators can be dualized. When a symmetrical actuator is combined in series with an asymmetrical actuator with single rod cylinder, the flow rates of their cylinders are unmatched. If their position controller has same configuration, one of their pumps can supply too much flow rate under particular load conditions, which should be bypassed into low pressure side e.g. by a relief valve. In this paper it is shown how the hydraulic circuit for the asymmetrically combined electro-hydrostatic actuator can be designed without sacrificing power consumption.