• Evangelos Papadopoulos Dept. of Mechanical Engineering, National Technical University of Athens, 15780 Athens, Greece
  • Ioannis Davliakos Dept. of Mechanical Engineering, National Technical University of Athens, 15780 Athens, Greece


electrohydraulic servosystem, optimization, optimal design


This paper focuses on optimal hydraulic component selection for electrohydraulic systems used in high performance servo tasks. Dynamic models of low complexity are proposed that describe the salient dynamics of basic electrohydraulic equipment. Rigid body equations of motion, the hydraulic dynamics and typical trajectory inputs are used in conjunction with optimization techniques, to yield an optimal hydraulic servosystem design with respect to a number of criteria such as cost, weight or power. The optimization procedure employs component databases with real industrial data, resulting in realizable designs. An example illustrates the developed methodology.


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Author Biographies

Evangelos Papadopoulos, Dept. of Mechanical Engineering, National Technical University of Athens, 15780 Athens, Greece

Evangelos Papadopoulos Received his Diploma from the NTUA in 1981 and his M.S. and Ph.D. from MIT in 1983 and 1991 respectively, all in Mechanical Engineering (ME). He then joined the ME Dept. at McGill U. and he became an Assoc. Prof. in 1997. Currently, he is an Assoc. Prof. with the ME Dept. of NTUA. His research interests are in robotics, mechatronics, modelling and control of dynamic systems and electrohydraulic servo systems. He is a senior member of IEEE and AIAA and a member of ASME and Sigma Xi.

Ioannis Davliakos, Dept. of Mechanical Engineering, National Technical University of Athens, 15780 Athens, Greece

Ioannis Davliakos Received his Diploma from the Aristotle University of Thessaloniki (AUTH), in 1998, in Mechanical Engineering. In 1999, he received the M.S. degree from the National Technical University of Athens (NTUA), where he is currently working towards a Ph.D. degree in Mechanical Engineering. His research interests are in electrohydraulic servo-systems, robotic parallel mechanisms and control of dynamic systems.


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Original Article