mechatronic intro

INTRODUCTION TO MECHATRONIC SYSTEMS [BEKM 2342]

Nursabillilah Mohd Ali Department of Mechatronics

Faculty of Electrical Engineering

Lecture #1

Introduction to Mechatronics System

Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka (UTeM)

Lecturer Mrs Nursabillilah Mohd Ali, Room: B/1-10 E-mail : [email protected]

Course Website http://ulearn.utem.edu.my/

You may download: Teaching Plan Lecture slides Project information Assignment etc


Teaching Team

Course Objectives

Upon completing this subject, the student should be able to:

Explain basic concept of mechatronic systems.

Explain the working principles mechatronics

systems.

Analyze selection and integration of mechatronics components.

Identify and analyse basic mechatronics systems


Textbook

[1] Bolton, W., Mechatronics: Electronic Control

Systems in Mechanical and Electrical Engineering,

4th ed., Prentice-Hall, 2008.

[2] Saeed B. Niku: Introduction to Robotics, Prentice

Hall, 2011

[3] Medriam, J.L: Engineering Mechanics: Static, 5th

edition, John Wiley & Sons.

[4] Devdas, S., Richard, A.K., Mechatronics System

Designs, PWS, 1997.

[5] Auslander, D.M., Mechatronics: Mechanical System

Interfacing, 1996.


Assessment

Subject Implementations

Lectures :3 hours per week for 14 weeks (Total = 42 hours)

Tutorials : 1 hours per week for 4-6 weeks (Total = 4-6 hours)

Subject Evaluations


Assessment* Marks

Quiz 10%

Test 1 10%

Test 2 15%

Case Study / Mini Project 15%

Final Examination 50%

Total 100%

Tentative Course Outline

1) Introduction to Mechatronics System

2) Sensors and Transducers

- Introduction, performance terminology, static and dynamic characteristics,

Example of relevant sensors

3) Sensors and Transducers

- Fluid pressure sensors, liquid flow & level sensors, temperature sensors,

selection of sensors and inputting data by switches.

4) Signal Conditioning

- Introduction, operational amplifier, protection, filtering, wheatstone bridge,

digital signal and PWM

5) Data Presentation Systems

6) Pneumatic and Hydraulic Actuation Systems

7) Mechanical Actuation Systems

8) Electrical Actuation Systems

9) Basic System Models

10) System Models

11) Dynamic Responses of Systems

12) Brief description of Mechatronics System Related Topics


Lectures

Attend to the lecture

Do not talk about your love life or answer your mobile phone

Ask (sensible) questions as much as you like

No sleeping or working on other homework

Homework/Project

Do it by yourself

Dont be late

Take the initiative and learn something !

What I Expect from You


MECHA + TRONICS

mechanical electronics

The technical term, Mechatronics, was coined by

Mr. Tetsuro Mori, in 1969 when he worked for

Yaskawa Electric Corporation in Kitakyushu in

order to propose the new technology to produce

new machine tools by integrating machines and

electronics.

What is Mechatronics ?


Integration of microprocessor control system, electrical systems and mechanical system" (Bolton, Mechatronics)

The synergistic combination of precision mechanical engineering, electronic control and systems thinking in the design of products and manufacturing processes" (Journal of Mechatronics)

Definitions of Mechatronics



The interdisciplinary field of engineering dealing with the design of products whose function relies on the synergistic integration of mechanical and electronic components coordinated by a control architecture. (Alciatore, D.G. and Histand, M.B.)

Definitions of Mechatronics


the synergistic use of precision engineering, control theory, computer science, and sensor and actuator technology to design improved products and processes (ME Magazine)


Mechatronics

The synergistic combination of mechanical, electrical,

and computer engineering

Emphasis on integrated product design Optimal combination of appropriate technologies

Micro to Macro

Applications

Mechatronics Systems

MEMS

Consumer

Electronics

Tools

Computers

Cars

Stealth Bomber

High Speed Trains

Desktop sized Factory Build small parts with a small factory

Greatly reduces space, energy, and materials

Mechatronics Systems -Manufacturing Applications-

Micro Factory Micro Factory Drilling Unit

Typical Applications Brake-By-Wire system Steer-By-Wire Integrated vehicle dynamics Camless engines Integrated starter alternator

Automobiles

OEM Driven Reliability Reduced weight Fuel economy Manufacturing flexibility Design freedom Advanced safety features Cost

Mechatronics Systems -Transportation Applications-

Smart Doorlock

Switchboard with

CAN Bus Gateway Smart Window Lift-unit

CAM Bus

Smart Mirror motor-unit pin-header

- Door System/Module-


-Smart Robotics Aplications-

Robots can vacuum floors and clean gutters so you don't have to.

Cleans Gutter

Vacuum Floors


Washing Machine Solution Power Supply

Rectifiers/Regulator

Pressure Sensor

MPX5006/MPX2010

Mechatronics Systems -Smart Home Applications-

Modeling and

Simulation

Automatic

Control

Artificial

Intelligence

Mechanical

Systems

Electrical

Systems

Actuators

Sensors

Computer

Systems

D/A

A/D

+

Electromechanical Real-Time InterfacingInformation Systems




Key Elements of Mechatronics



Electrical

Systems

Computer

Systems

Information

Systems

Mechanical

Systems

MECHATRONICS

Devdas Setty, et.al., Mechatronics System Design


Information Systems

An information system is combination of Signal processing Control Systems numerical method

For Mechatronics system, information system concerns with modeling and simulation automatic control numerical method for optimization


Modeling is the process of representing the behavior of real system (physical system) by collection of mathematical equation and/or logic.

Physical

system

model

input output

Information Systems -Modeling-


Simulation is the process of solving the model and is performed on a computer.

We need a programming language to make simulation: Machine language: assembler Text-based language: C, Basic, Fortran Visual programming language: Simulink, LabVIEW, VisSim

Information Systems -Simulation-


Information Systems -Control-


Continuous control System The variables and parameters to be controlled are continuous. Topics of Teknik Pengaturan course

Discrete Control System Variables and parameters are discrete, mostly binary



continuous control



Controller Plant

Sensor

Desiredoutput

ActualoutputError

Plantinput

+-

Why do we need a continuous controller ?

Information Systems -Control-Closed Loop System


A controller is required to process the error signal to satisfy a certain criteria such as:

Steady-state error Transient response Disturbance rejection Sensitivity to parameter change in the plant (robustness)



Discrete Control System:



Discrete Control System

Sequential Control System




drill

work piece

Switch 2

Switch 1

Switch 3

Automatic drilling machine

How to control the sequential operation of the automatic drilling ?

The aim of the sequential control is to ensure that the sequence of event take place.




The control system for the automatic drilling machine is required to: start lowering the drill when the workpiece is in position start drilling when the drill reaches the workpiece stop drilling when the drill produces the required depth of the hole retract the drill and then switch off wait for next workpiece to be put in position before repeating the operation.

How if there are many holes in a workpiece ?




Mechanical systems are concerned with the behavior of matter under the action of forces which cause motions.

Fluid and thermal systems are also included in the mechanical systems.

Mechanical Systems



Mechanical Systems



Electrical systems are concerned with the behavior of three fundamental quantities: charge, current and voltage.

Electrical systems consist of : Power system Electronics

Electrical Systems



Power systems are designed to transmit large quantity of electrical energy.

Power systems devices Rotating machine (motor) convert energy from electrical to mechanical Generator convert energy from mechanical to electrical

Electrical Systems -Power-



Electronics are designed to transmit Small quantity of electrical energy.

Electronics devices Resistor Capacitor Transistor, diode Op-amp

Electrical Systems -Electronics-



Common electrical components of mechatronics systems: motor and generator sensor and actuator solid state devices, including computers circuits (signal conditioning, impedance matching, including amplifier) Contact devices (relay, fuses, switch)

Electrical Systems -Basic Components-



Computer systems is the study of how such circuits should be connected together to think efficiently.

The computer systems consists of hardware software.

Computer Systems



For mechatronics application, computer system hardware is restricted to computer-specific circuits and devices including Digital logics: flip-flops, counters, timers, triggers microprocessor microcontroller personal computer (PC) programmable logic controller (PLC)

Computer Systems



mechatronic intro

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