Actuators

1. ME3729
ACTUATORS AND DRIVES
Dr. RM.KUPPAN CHETTY
M.Tech., Ph.D., M.I.E., C.Eng. (India)
Associate Professor
ANRO, HITS
Disclaimer
Pictures and support materials used are open-source information from various references and online
sources. The information in this presentation was compiled from sources believed to be reliable for
informational purposes and noncommercial use only.

2. Course Objectives
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Concepts of Actuation
Classification of Actuators and Performance
Characteristics
Principles and applications of Mechanical, Electro
Mechanical Actuators
Principles and applications of Hydraulic and Pneumatic
Actuators
Concepts of Mechanical Power drive systems
Design and Simulate actuation systems

3. Course Outcome
• Familiarize and Comprehend the
classification and selection of actuators
• Illustrate, Explain and Comprehend the
working principle of hydraulic,
pneumatic, electro-mechanical actuators
• Identify, Select and Design actuation
systems for various applications
• Appreciate various drives systems used
for actuation
• Design hydraulic and pneumatic
actuation systems and perform
simulation using modern engineering
tools
Graduate Attributes
PO1 Engineering Knowledge
PO2 Problem Analysis
PO3 Design / Development of Solutions
PO4 Investigations
PO5 Modern Tool Usage
PO6 Engineer and Society
PO7 Environment and Sustainability
PO8 Ethics
PO9 Individual and Team Work
PO10 Communication
PO11 Project Management and Finance
PO12 Life Long Learning

4. Course Model
• 2 hours of Theory and 2 hours of practical per week
• Self Study
• 2 Assignments during the Course
• Two Test
• Surprise MCQ
• 5 Case studies and 1 Seminar
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5. Assessment Pattern with Weightage
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a. Continuous Internal Assessment -- 50% -
b. End Semester Exam -- 50% - ESE minimum – 50%
c. Passing minimum (CIA + ESE) = 50%
Attendance Less than 75% - RA category. (i.e. Should repeat the course in next semester)
Assessment Weightage
2 Tests 10%
2 Quiz 10%
Assignments 10%
Field work 10%
Seminar 10%
Case Studies (T) 50%

6. Student Support Material
• MS Teams: M.Tech MECHATRONICS - Actuators and Drives
• Team Code: so73moh
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Reference Books
• Anthony Esposito, Fluid Power with Applications, Pearson Education 2000.
• Majumdar S.R., Oil Hydraulics,Tata McGraw-Hill, New Delhi 2009
• Robert H. Bishop, The Mechatronics Handbook, CRC Press, 2002
• Princeton Brown, Sensors and Actuators, Technology and Applications, Library Press, 2017
• Clarence W. de Silva, Sensors and Actuators Engineering System Instrumentation, CRC press, 2016
• Nathan Ida, Sensors, Actuators and their Interfaces, A multidisciplinary introduction, SCI TECH
Publications, 2014

7. • Mechatronics is used for integration
of microprocessor control systems,
electrical systems and mechanical
systems.
• A Mechatronics system is not just a
marriage of electrical and
mechanical but it is a complete
integration of all of them.
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What is Mechatronics?

8. Contd.
• Synergistic combination of mechanics, electronics, microprocessors
and control engineering
• Like concurrent engineering
• Does not take advantage of inherent uniqueness available
• Control of complex electro-mechanical systems
• Rethinking of machine component design by use of mechanics, electronics
and computation
• Allows more reconfigurablility
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9. Mechatronics
The synergistic combination of mechanical, electrical, and computer engineering
•Emphasis on integrated design for products
•Optimal combination of appropriate technologies

10. Micro to Macro
Applications
Mechatronics Systems
MEMS
Consumer
Electronics
Tools
Computers
Cars
Stealth Bomber
High Speed Trains

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Mechatronics Key Elements

12. COMPONENTS OUTLINE
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Mechatronics Systems
Traditional Spring Mass System
Microprocessor based equivalent spring
mass system

15. •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

16. 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-

17. “Smart” Doorlock
Switchboard with
CAN Bus Gateway
“Smart” Window Lift-unit
CAM Bus
“Smart” Mirror motor-unit
pin-header
- Door System/Module-
Mechatronics Systems

18. Automation
 Automation is the use of machines and
technology to make processes run on their
own without manpower
 Technique, method, or system of operating or
controlling a process by highly automatic
means, as by electronic devices, reducing
human intervention to a minimum
 Defined as appropriate use of machines,
electronic devices and computer software for
the construction work
 Increase the productivity and Quality
 Reduces the duration and laborious work
 Increases the safety and flexibility
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19. Automation & Robotics
Robots are a piece of equipment that can perform a variety of tasks
with programming
Automation is a term that is used for special purpose machines or
systems that are designed to perform a specific task.
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20. Automation & Robotics
• Robots: Automated Intelligent machine to do a Physical Task
• Automation: computer software, machines or other technology to
carry out a task which would otherwise be done by a human worker
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21. ACTUATORS
• Actuator is a device which is used to actuate a
process.
• Actuate is to operate the process.
• Actuators are the device used for converting
hydraulic, pneumatic, and electrical energy
into mechanical energy.
• Mechanical energy used to get the work done.
Actuators perform functions just opposite to
that of the pump.
• Used for lifting, tilting, clamping opening,
closing, metering, mixing and turning, and for
many other operations

22. .
An actuator is a component of machines that is
responsible for moving or controlling a
mechanism or system.
Switching devices – mechanical switches, eg. relay and
solid-state switches, e.g. diodes, thyristors and
transistors app – switch on or off electrical devices
Solenoid – type devices used to actuate valves of hydraulic
and pneumatic systems. (flow control)
Drive systems – DC motor, AC motor and stepper motor.
ACTUATORS (Contd.)
Example:
In a CNC milling machine, there may be an electrical signal output from the
CNC controller to move the milling table in the x direction for a certain
length. There you need an actuation system.

23. • Actuation systems are the elements of control systems
which are responsible the output of a microprocessor or
control system into a controlling action on a machine or
device.
• Types of Actuators
• Mechanical Actuators
• Electrical Actuators
• Hydraulic Actuators
• Pneumatic Actuators
Actuation Systems
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Functional Block diagram of a actuator

24. Classification of
Actuators
ACTUATORS
Type of
Motion
Linear Rotary
Type of
Medium
Hydraulic Pneumatic Electric Mechanical
Electro
Mechanical
Electro
Magnetic
• Smart Materials Actuator
• Micro and Nano Actuators
• Actuator less Actuators

25. Principle of Operation
Electrical Actuators