The use of clutches to accelerate and decelerate a pair of shafts connected by a gearbox. The gear connects the output and intermediate shafts. The inertia for both of these shafts is included in the Inertia Output Shaft component. This pair of shafts is connected via one clutch to a drive shaft which is driven by a torque. These shafts are also connected via a second clutch to a stationary point.

Two inertias coupled by a simple gear controlled by a clutch. Initially, the clutch pressure is zero, and the inertias have zero velocity. A constant torque is applied to Inertia 1. Once the clutch pressure starts increasing from zero at 2 seconds, Inertia 2 starts spinning, then locks with Inertia 1. From 6 to 7 seconds, the clutch pressure is ramped down to zero, and Inertia 2 starts to spin freely once the clutch unlocks. Because there is no frictional loss, it keeps spinning.

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.