This paper discusses, analyzes, and compares two different displacement controlled solutions for a rotary drive of a mobile machine. In particular, the first solution is a hydrostatic transmission based on a closed circuit structure while the second solution employs secondary controlled hydraulic drives. In detail, these alternatives are evaluated in the context of a machine with a huge mass that performs repetitive working cycles with frequent stops and goes that require a precise positioning. Consequently, the ability to recover energy via regenerative breaking becomes a key aspect in order to improve the global efficiency of the machine. Therefore, the paper will present a dynamic system model that was used to compare the two alternatives.
Energy Efficient Hydraulic Rotary Drive: Analysis and Comparison of Two Different Displacement Controlled Solutions
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Padovani, D, & Ivantysynova, M. "Energy Efficient Hydraulic Rotary Drive: Analysis and Comparison of Two Different Displacement Controlled Solutions." Proceedings of the 8th FPNI Ph.D Symposium on Fluid Power. 8th FPNI Ph.D Symposium on Fluid Power. Lappeenranta, Finland. June 11–13, 2014. V001T01A010. ASME. https://doi.org/10.1115/FPNI2014-7842
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