Project 1

Develop a Double-acting actuator model in SIMULINK using Simscape blocks. 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 Hydraulics library physical components/blocks.

(Reference Model Link: https://in.mathworks.com/help/sm/ug/hydraulic-interface-dump-trailer-with-hydraulic-cylinder.html)

Why Actuators?

An Actuator is a Mechanism and a device used to control the movement of the system.

In this we are going to take a Deep Dive into the Double acting Hydraulic Actuator:-

What is Double Acting?

The Main Piston inside the Cylinder does a single stroke means it's single acting but here the main piston does Double actions one is Retraction and another one is an extension so it is a Double acting.

What is Double acting Hydraulic Actuators?

A source of energy is a Hydraulic in this actuator and the Hydraulic power Creates Pressure. This Mechanism is Commonly used in the Hydraulic Pumps, Excavators and the Lifting Devices

Here our Goal is to do the Mechanical System of the Cylinder and the Piston using the Simscape Multibody and the Hydraulic System Needs to be Modelled Using Simscape Physical Components

Mechanical System (Using the Simscape Multibody)

Cylinder Design

Cross Section of Barrel:

[0.08, 0.5/2; 0.08, -0.5/2; 0.1, -0.5/2; 0.1, 0.5/2]

Piston Design

After building These we should connect them to the Mandatory Blocks

THEN WE CONNECT TO THE PRISMATIC JOINT

FOR THE RECIPROCATION MOVEMENT OF THE COMPONENT WE USE A PRISMATIC JOINT TO CONNECT, THERE IS A TWO PORTS BASE ( This we should connect which the parts are the base for eg non-movable) AND A FOLLOWER ( This we should connect which the part follows the base for eg movable)

Input to the prismatic joint:

Then the HYDRAULIC PART:

The major Component in the Hydraulic part is the Hydraulic Valve and Hydraulic Value Control

The control valve and value are referred from the reference model

Here the isothermal Liquid is a Hydraulic fuel and the reservoir is used for Storage Purposes and the Pressure source can carry the Hydraulic into the valve

To convert fluid into actuation we use some Mechanical Physical system

Translational Mechanical Converter (IL)

This is acts like a Linear movement. It converts the Isothermal Liquid into Mechanical Movement and the Translational Multibody Interface is used to interface between the Isothermal to the multibody

And the Final Model is...

SCOPE OUTPUT:

Conclusion:

Here I take input the same as the reference model and the output shows after 1-second hydraulic cylinder gets actuated (Retraction takes place) and after 6 seconds it returns

(Extension Takes place) the simulation time is for the 10 seconds