How the Foundation library can be used to model systems that span electrical, mechanical and hydraulic domains. In the model, a hydraulic system controls mechanical load position in response to a voltage reference demand. If the reference demand is zero, then the hydraulic actuator (and load) displacement is zero, and if the reference is +5 volts, then the displacement is 100mm.

Use the Foundation library to model systems that span electrical, mechanical and hydraulic domains.

A two-way valve acting in a closed-loop circuit together with a double-acting cylinder. The controller is represented as a continuous-time transfer function plus a transport delay. The delay allows for the computational time (one discrete time period) plus the zero-order hold (half a discrete time period) when implemented in discrete time. The model is configured for linearization so that a frequency response can be generated. To configure for faster desktop simulation, comment through the transport delay and increase the solver maximum step size.

A physical system model and controller configured for HIL testing. It is derived from example Hydraulic Actuator with Digital Position Controller, ssc_hydraulic_actuator_digital_control. The model has been configured for HIL testing by performing the following steps:

Este modelo muestra cómo cavitar y recuperar el fluido en un cilindro de doble efecto personalizado. Durante el ciclo repetitivo de presión oscilante, la presión absoluta no desciende por debajo de cero absoluto a medida que el módulo de compresibilidad de la mezcla homogénea de líquido y gas disminuye, en consecuencia, con bajas presiones.