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논문 기본 정보

자료유형
학술저널
저자정보
Hyoung Gyu Park (University of Ulsan) Syed Abu Nahian (University of Ulsan) Kyoung Kwan Anh (University of Ulsan)
저널정보
유공압건설기계학회 드라이브·컨트롤 드라이브·컨트롤 Vol.13 No.4
발행연도
2016.12
수록면
31 - 44 (14page)

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초록· 키워드

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In recent hydraulic actuation systems, conventional hydraulic spool valves with pressure compensators are becoming less popular, after the introduction of the independent metering concept for valves. Within this concept, four valves are needed for actuating a single cylinder. Subsequently, this increases the freedom of controlling both chamber pressures of the cylinder, and it then provides for electronically-controlled pressure compensation facilities. Additionally, this has the potential to save valuable energy. The primary focus of this paper is to develop a new generation of hydraulic circuits using the independent metering valve (IMV). This configuration can function well as a conventional IMV circuit while providing better pressure control. We first describe the working principles of five distinct modes of the proposed IMV system. Then, mathematical models for each working mode are presented. Finally, we present numerical simulations that have been carried out to evaluate the system performance, in comparison with that of the conventional IMV configuration. The simulation results demonstrate that the performance of the new IMV configuration is superior to the conventional IMV system in terms of energy savings.

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Abstract
1. Introduction
2. Conventional Independent Metering with Four Valves
3. New Independent Metering Configuration
4. Quasi-static System Modeling of Independent Metering Valve with Mathematical Expression
5. Power Saving Comparison and Analysis
6. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-550-002372605