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This paper is focused on experimental measurement and mathematical simulation of liquid dynamics during hydraulic shock. The mathematical model is created using Matlab SimHydraulics software. The mathematical simulation of pressure response during hydraulic shock is experimentally verified. The hydraulic shock is caused by a sudden closing of a seat valve, which is located at the end of a long pipe. Pressure in front of the seat valve, oil flow and temperature were measured on experimental equipment. Furthermore the pressure response is mathematically simulated by inserting a membrane accumulator in order to compensate pressure pulsations.

Simulation of Accumulator Influence on Hydraulic Shock in Long Pipe