This example shows an engine driving an inertial load via a hydraulically-controlled clutch. It shows how Simscape™ Driveline™ can be used in conjunction with Foundation Library hydraulic blocks to model hydraulically-actuated drivelines.
The plot below shows the speeds of an engine and load as a clutch is engaged. Once the clutch is fully engaged the shafts rotate at the same speed. The clutch actuator is modeled as a hydraulic system.