JNTUA B.Tech. R20 Regulations

########## JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY ANANTAPUR B.Tech (ME) - IV-I Sem L T P C

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########## (20A03703b) DESIGN OF HYDRAULIC AND PNEUMATIC SYSTEMS (Professional Elective-V) Course Objectives:

- • Familiarize on Fluid Power Engineering and Power Transmission System.
- • Introduce the students, the basic concepts of hydraulic and pneumatic systems.
- • Expose the students with various hydraulic and pneumatic actuators.
- • Familiarize on fluid power systems and its applications to real time.
- • Know the problem, which occur in fluid power systems and take necessary troubleshooting/ maintenance activities.
- • Get practiced in designing hydraulic and pneumatic systems.
- • Understand the design procedure available for Hydraulic and Pneumatic circuits.

########## Course Outcomes:

At the end of the course, the student will be able to

- • Compare the differences between hydraulic and pneumatic systems
- • Identify the practical applications in automation
- • Build the circuits for a given applications
- • Develop hydraulic and pneumatic power packs
- • Discuss the importance of PLC and microprocessor in hydraulic and pneumatic systems

########## UNIT I Introduction

Introduction to fluid power - Types, advantages and application of fluid power systems. Properties of hydraulic fluids - General types of fluids - Fluid power symbols as per ISO/ANSI. Basic Components of Hydraulic and Pneumatic Systems. Comparison of Mechanical, Electrical, Hydraulic & Pneumatic systems for force and motion analysis in automation.

UNIT II Types of hydraulic pumps - construction and working principle - design Hydraulic Pumps, Actuators: Types of hydraulic pumps - construction and working principle - design Hydraulic Pumps, Actuators: considerations, selection, specifications and characteristics of pumps. Types of actuators-construction and working principle - design considerations, selection, specifications and characteristics of actuators. Direction control valves, Pressure control valves, Flow control Control And Regulation Elements: And Regulation Elements: valves, Non-return valves, Reservoirs, Accumulators, Heating & cooling devices, Hoses. Selection of valves for hydraulic circuits.

########## UNIT - III Design Of Hydraulic Circuits

Speed control circuits - Regenerative circuits- Accumulators and Intensifiers: Types of accumulators - Accumulators circuits, sizing of accumulators, intensifier - Applications of Intensifier - Intensifier circuit. - Reservoir design - Selection of components. Hydraulic circuits - Reciprocating - Quick return - Sequencing synchronizing - Safety circuits - Industrial circuits - Press - Milling Machine - Planner - Fork Lift.

########## UNIT - IV Pneumatic Systems

Pneumatic fundamentals - Properties of air - Compressors - Filter, Regulator, and Lubricator unit - Air control valves, Quick exhaust valves, and pneumatic actuators. Control Elements - Logic Circuits - Position - Pressure Sensing - Switching - Electro Pneumatic - Electro Hydraulic Circuits - Robotic Circuits.

########## UNIT - V Design Of Pneumatic Circuits

Classic-Cascade-Step counter - Combination -Methods - PLC-Microprocessors -Uses - Selection criteria for Pneumatic components - Installation and Maintenance of Hydraulic and Pneumatic power packs - Fault finding - Principles of Low Cost Automation - Case studies.

########## Textbooks:

- 1. Anthony Esposito, 'Fluid Power with Applications', Pearson Education 2000.
- 2. Majumdar S.R, 'Oil Hydraulics', Tata McGraw Hill, 2000.
- 3. Majumdar S.R, 'Pneumatic Systems - Principles and Maintenance', Tata McGraw Hill, 2001.