Abstract
The article presents the results of experimental study of hydrodynamic noise (HDN) arising as a result of flow of working fluid through the perforated throttling plates. The influence of the shape of the holes, its diameter and density of the location of holes on the HDN throttling plates was studied. It was established that the lowest HDN is implemented with a cylindrical-shaped holes with a minimal diameter and density of the holes’ location. The results allow choosing the form of perforated sleeves of low noise regulators of hydraulic systems.
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