buletinul institutului politehnic din iaşi bulletin of the polytechnic ...

price and not on investment only. The hydraulic systems with
secondary control are not only saving energy but also recovering it.
In the paper two cases of such systems are presented. One can see
the Simscape diagram for one of them and the simulation results for
both.
Key words: hydraulic system, secondary control, numeric
simulation.
MAN MACHINE INTERFACE ERGONOMIC DESIGN
RELATED TO HUMAN FACTORS
by
ALEXANDRA TOMA and CORNEL CIUPAN
Abstract. When a human-machine-interface gets less priority
in a design analysis, unnecessary hazards may be imposed.
Ergonomic and human factors should be incorporated as a part of
this process, so they can show the importance of human machine
interaction. The objective of this paper is to highlight these factors
that are able to provide a platform where this emerging technology
part interaction can increase productivity, quality, satisfaction,
safety and health in a workplace. The article contribution is a
theoretical one taking into consideration helpful ideas in a human
machine interface ergonomic design.
Key words: design, ergonomics, human factors, humanmachine-interface.
STUDY ABOUT THE ROLE OF ACCUMULATORS IN
HYDRAULIC SECONDARY CONTROL SYSTEMS
by
LILIANA TOPLICEANU, ADRIAN GHENADI and MARIUS PASCU
Abstract. The paper is focused on the functional role of
accumulators in hydraulic secondary control systems.
Mathematical models are presented and the same the simulation
results for a gas-charged accumulator using SimHydraulics tool
from programming language Matlab.
Key words: accumulator, secondary control system.