On April 12th, 2019, the student Thales Agostini presented his master thesis, Modeling and Analysis of an electro-hydrostatic system using asymmetrical cylinder for stationary and mobile machinery , in Florianópolis, SC. The research consists of modeling, experimental tests and analysis of energy efficiency through simulation. The system approached the concept of Electro-Hydrostatic Actuator (EHA), which a compact and closed-loop circuit is utilized to operate an asymmetrical cylinder. This work was carried out with the support of the academy postdoctoral researcher Tatiana Minav and the collaboration of Aalto University (Finland), where part of the research and experimental tests were performed. The results obtained show a potential increase in energy efficiency mostly due to the absence of resistive control by the directional valves. It also pointed out the importance of the optimal dimensioning of pump/motors and how it has an effect on the efficiency values.
