Dmitrienko O. Improvement of Characteristics of Hydraulic Passive Extinguishers of Pulsations in Hydrounits by Definition of their Rational Parameters

The оbject are the non-stationary hydromechanical processes occuring in hydraulic passive extinguishers of pulsations and influencing their characteristics. The aim is improvement of characteristics hydraulic passive extinguishers pulsations by development of a technique of their hydrodynamical calculation and optimization of design data. Methods - methods of mathematical and physical modelling, numerical methods. Novelty - mathematical models of the hydrounit with hydraulic passive extinguishers of pulsations of chamber and interference types, received with use of the developed technique of hydrodynamical calculation of hydraulic system for the first time are created; classification hydraulic passive extinguishers of pulsations is specified with the purpose of opening their new opportunities; frequency ranges of effective application hydraulic passive extinguishers of pulsations which in view of working parameters of the hydrounit on a design stage allow to choose type and the constructive circuit extinguisher of pulsations for the concrete hydrounit are established; influence of characteristics of a working liquid is established on characteristics hydraulic passive extinguishers pulsations. Results - scientifically proved technique of hydrodynamical calculation of hydraulic system; practical recommendations concerning a choice of type, the constructive circuit passive extinguisher of pulsations and a place its establishment in the hydrounit are offered in view of working parameters of the concrete hydrounit; the technique optimization of parameters passive extinguishers pulsations and a complex of programs for calculation of its rational parameters is developed. Hydropneumoautomatics and Hydrodrive, the joint venture of Joint-Stock Company " ХЕМЗ - IPEC ". Mechanical Engineering.