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Energy Efficient Hydraulic Rotary Drive: Analysis and Comparison of Two Different Displacement Controlled Solutions

[+] Author Affiliations
D. Padovani, M. Ivantysynova

Purdue University, Lafayette, IN

Paper No. FPNI2014-7842, pp. V001T01A010; 9 pages
doi:10.1115/FPNI2014-7842
From:
  • 8th FPNI Ph.D Symposium on Fluid Power
  • 8th FPNI Ph.D Symposium on Fluid Power
  • Lappeenranta, Finland, June 11–13, 2014
  • Conference Sponsors: Fluid Power Net International (FPNI), Lappeenranta University of Technology, Finland
  • ISBN: 978-0-7918-4582-0
  • Copyright © 2014 by ASME

abstract

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.

Copyright © 2014 by ASME
Topics: Displacement

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