SYLLABUS FOR SEMESTER - VI ( AHP)

09ME603         APPLIED HYDRAULICS AND PNEUMATICS       

                                                                                                         

OBJECTIVE:        

• To gain knowledge on Fluid Power Engineering and Power Transmission System.
• To understand the design procedure available for Hydraulic and Pneumatic circuits.
• To learn the advantages and Applications of Fluid Power System in automation of Machine Tools and others Equipments

1. FLUID POWER BASICS                                                         

Introduction to fluid power-Advantages of fluid power-Application of fluid power system. Types of fluid power systems-Properties of hydraulic fluids – General types of fluids – Fluid power symbols. Basics of Hydraulics-Applications of Pascals Law- Laminar and Turbulent flow – Reynolds number – Darcy’s equation – Losses in pipe, valves and fittings. Sources of Hydraulic Power- Pumping theory – Pump classification – Gear pump, Vane Pump, piston pump, construction and working of pumps – pump performance.

2.HYDRAULIC SYSTEM COMPONENTS                                                              
Fluid Power Actuators: Linear hydraulic actuators – Types of hydraulic cylinders – Single acting, Double acting special cylinders like tandem, Rodless, Telescopic, Cushioning mechanism, Construction of double acting cylinder, Rotary actuators – Fluid motors, Gear, Vane and Piston motors. Control Components- Director control valve – 3/2 way valve – 4/2 way valve – Shuttle valve – check valve – pressure control valve – pressure reducing valve, sequence valve, Flow control valve – Fixed and adjustable, - actuation systems. Electrical control solenoid valves-relays-Electro hydraulic servo valves.

3. HYDRAULIC CIRCUITS                                                                                  

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, etc.

4. 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.

5. DESIGN OF PNEUMATIC CIRCUITS                                                         

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

                                                                 

TEXT BOOKS

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.
4. Dudelyt, A. Pease and John T. Pippenger, “Basic Fluid Power”, Prentice Hall, 1987.

REFERENCES

1. Anthony Lal, “Oil hydraulics in the service of industry”, Allied publishers, 1982.
2. Harry L. Stevart D.B, “Practical Guide to Fluid Power”, Taraoeala Sons and Port Ltd. Broadey, 1976.