Project 1

Project - Double acting actuator

Aim: To develop a double acting actuator model using Simscape Multibody and Simscape components

Objective: Develop a double-acting actuator model using Simscape Multibody and Simscape components. The mechanical system of the cylinder needs to be built using Simscape Multibody library components / blocks, and the hydraulic system needs to be modelled using Simscape library physical components.

Solution:

For this project, we have to model a double-acting actuator using Simscape Multibody and Simscape components. The mechanical system of the cylinder needs to be built using Simscape Multibody whereas the hydraulics part of it is to be modelled using Simscape library. So firstly we shall build the cylinder.

The cylinder has two components: the barrel and the plunger. The barrel is covered by the lower and upper caps while the plunger has a piston and a rod. Theres a prismatic joint betweent the barrel and the plunger. The cylinder is thus modeled as:

Now, the cylinder is operated using a hydraulic fluid. Its a double acting cylinder hence there are two chambers separated by the piston of the plunger. Two ports allow fluid in out of these chambers respectively. The hydraulic system is built as:

The inputs to this assembly is given by a signal builder block. The inputs from the signal builder need to be converted to feed them to the hydraulic system. For it the hydraulic circuit is built as:

The entire model is interconnected as:

Outputs: