TY - GEN
T1 - INVESTIGATING THE FILTRATION CHARACTERISTICS OF DIRECT DRIVEN HYDRAULICS
AU - Han, Xu
AU - Välimaa, Jussi
AU - Orifjonov, Abdullokh
AU - Padovani, Damiano
AU - Minav, Tatiana
N1 - Publisher Copyright:
Copyright © 2021 by ASME.All right reserved.
PY - 2021
Y1 - 2021
N2 - Direct driven hydraulics (DDH) is receiving increasing attention due to its advantages such as high energy efficiency, easy maintenance, and compactness. However, its oil contamination management has not been surveyed in detail, whereas uncontrolled oil contamination might result in extra maintenance efforts or even downtime. Therefore, this research paper analyzes the oil filtration in direct driven hydraulics through modeling and simulation to predict the filtration effects and support the filtration design. Firstly, model blocks of the filtration characteristics are built to be added to the basic DDH dynamic model. The model can hereby include the coupling effects between fluid degradation and component wear, the filtering process, and the time-varying filter performance. Secondly, the proposed model is applied to a DDH that incorporates filtration and simulated under a duty cycle for 960 hours. The DDH efficiency and control performance when considering the contaminant are revealed. Thirdly, the results are compared between different filter selections and a filtration solution is finally proposed. In conclusion, this paper illustrates the filtration effects on the efficiency, control performance, and oil contaminant level of DDH by simulation, which can hereby support the design of the DDH filtration solution. According to the simulations, the filtered DDH resulted in 96% degradation of the pump's volumetric efficiency after 960-hour running compared to 92% when not using any filters. The extra pressure drop introduced by the filter is below 2 bar, suggesting that the introduction of a filter with 6 μ m filtration level is beneficial.
AB - Direct driven hydraulics (DDH) is receiving increasing attention due to its advantages such as high energy efficiency, easy maintenance, and compactness. However, its oil contamination management has not been surveyed in detail, whereas uncontrolled oil contamination might result in extra maintenance efforts or even downtime. Therefore, this research paper analyzes the oil filtration in direct driven hydraulics through modeling and simulation to predict the filtration effects and support the filtration design. Firstly, model blocks of the filtration characteristics are built to be added to the basic DDH dynamic model. The model can hereby include the coupling effects between fluid degradation and component wear, the filtering process, and the time-varying filter performance. Secondly, the proposed model is applied to a DDH that incorporates filtration and simulated under a duty cycle for 960 hours. The DDH efficiency and control performance when considering the contaminant are revealed. Thirdly, the results are compared between different filter selections and a filtration solution is finally proposed. In conclusion, this paper illustrates the filtration effects on the efficiency, control performance, and oil contaminant level of DDH by simulation, which can hereby support the design of the DDH filtration solution. According to the simulations, the filtered DDH resulted in 96% degradation of the pump's volumetric efficiency after 960-hour running compared to 92% when not using any filters. The extra pressure drop introduced by the filter is below 2 bar, suggesting that the introduction of a filter with 6 μ m filtration level is beneficial.
KW - Direct driven hydraulics
KW - Filtration
KW - Hydraulic contamination
KW - Modeling and simulation
UR - http://www.scopus.com/inward/record.url?scp=85122577516&partnerID=8YFLogxK
U2 - 10.1115/FPMC2021-70614
DO - 10.1115/FPMC2021-70614
M3 - 会议稿件
AN - SCOPUS:85122577516
T3 - Proceedings of ASME/BATH 2021 Symposium on Fluid Power and Motion Control, FPMC 2021
BT - Proceedings of ASME/BATH 2021 Symposium on Fluid Power and Motion Control, FPMC 2021
PB - American Society of Mechanical Engineers (ASME)
Y2 - 19 October 2021 through 21 October 2021
ER -
