Abstract
In this paper, the authors present a 0D fluid dynamic model of a vane pump used to refill tanks with fuel. The model is entirely developed in OpenModelica environment, where the authors have created specific libraries of elements suitable for the physical modelling of fluid power components and systems. Among the different approaches, the zero-dimension (0D) fluid-dynamic modelling of positive displacement machines is suitable to study many aspects as: the instantaneous flow rate, pressure and torque transients, the fluid borne noise related to the flow rate and pressure irregularity, the dynamic behaviour of the variable displacement control. Overall, this approach in modelling allows to link the geometrical features of the machine with its dynamic behaviour and for this reason is particularly useful in guiding the design. The model of the vane pump is described together with the main design features that can be analysed in terms of their influence on the pump behaviour. Besides the specific results obtained regarding the design of the pump, the paper also demonstrates the use of OpenModelica language and environment, and its efficacy, into the applications of fluid power modelling and simulation.
Highlights
Fluid power systems are used in many industrial and mobile applications, thanks to some very valuable characteristics such as the high power to weight ratio, the flexibility and good controllability, the possibility to manage very high loads both with rotary and linear actuators
Positive Displacement Machines (PDMs), wildly used in fluid power systems for mobile and industrial applications, still present many challenges related to their design
Modelling and simulation have been used in the last decades on thedifferent architectures of PDMs to help designers improving their performance. ([9, 10, 11])
Summary
Fluid power systems are used in many industrial and mobile applications, thanks to some very valuable characteristics such as the high power to weight ratio, the flexibility and good controllability, the possibility to manage very high loads both with rotary and linear actuators. Cavitation and aeration affect both the machine efficiency and the noise emissions, as well as the duration of the component This issue is very challenging to besimulated but advanced CFD analysis combined with lumped parameters approach and experimental vibrational analysis are able to locate theareas where these phenomena occur and to test any design solution introduced to avoid or limit the damage ([14, 15, 16]). The method for the geometry definition of the main variables adopted in [17] and [18] was adapted to consider the differences in the stator and vanes design of the pump analysed in this paper, and was implemented in OpenModelica environment [24, 25], using a special set of models created by the authors to study hydraulic components and systems. The reader will find: a description of thepump analysed, a description of the mathematical model and of its implementation in OpenModelica and a discussion of theresults obtained fromthe simulations
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
