Gas-Charged Accumulator Test Rig

This example shows a test rig for the Gas-Charged Accumulator (IL) block. The pressure source with the orifice closed charges the accumulator. The check valve holds the accumulator at its charged pressure, and as the orifice opens the accumulator discharges.

Model

Simulation Results from Scopes

Simulation Results from Simscape Logging

The plots below show two cycles of accumulator charging and discharging. While the orifice is closed, the supply pressure increases, charging the accumulator. The check valve holds the pressure in the accumulator as the supply pressure is dropped. When the orifice opens, the accumulator discharges. Once the accumulator is empty, the flow rate through the orifice reduces to a lower value due to the lower supply pressure. When the orifice closes again, the cycle repeats.