Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 11, 2020 - November 13, 2020
This study focuses on a power generator that converts pressure pulsations generated in the hydraulic circuit into mechanical vibrations and finally converts them into electric power to absorb them. The authors selected a water hydraulic cylinder because that can easily transmit pulsating force to the outside of the circuit. The pressure pulsation from a swash-plate type piston pump propagates in the water hydraulic circuit. The cylinder locates between the pump and a valve placed just upstream the reservoir. In the experiment, the authors measured the pressure, the flow rate through the pipe and the thrust force on the cylinder rod, and have not done the electric power generation yet. The frequency of the pressure fluctuation and the initial volume of the cylinder is the significant parameter. As a result, the pressure absorption characteristics strongly depend on the frequency and the initial volume.
