FLUID POWER SYSTEM FUNDAMENTALS
Theory:
Introduction Fluid Power - hydraulics and pneumatics - advantages and limitations -Properties of fluids - Fluids for hydraulic systems - Applications of fluid power -ISO symbol- Basics of Hydraulics -Applications of Pascal's Law - Classification of Pumps and Positive displacement type pumps - Pumping Theory.
Practical:
1. Design and simulation of basic hydraulic circuit.
2. Design and simulation of pneumatic circuit
HYDRAULIC ACTUATORS AND VALVES
Theory:
Hydraulic 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-Hydraulic clamping actuators, grippers.
Construction of Control Components: Direction 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 FCV.
Practical:
1.Design and testing of fluid power circuits to control
(i) Velocity
(ii) direction and
(iii) force of single and double acting actuators.
PNEUMATIC SYSTEM COMPONENTS AND SERVO SYSTEMS
Theory:
Pneumatic Components: Properties of air -Compressors -Filter, Regulator, and Lubricator Unit -Air control valves, Quick exhaust valves, and pneumatic actuators, Selection of tubes and connectors.
Servo systems - Hydro Mechanical servo systems, Electro hydraulic servo systems - Proportional control valves and servo valves - Introduction to Fluidics.
Practical:
1. Design of circuits with logic sequences in electro pneumatic trainer kits.
Theory:
Fluid Power Circuit Design -Circuits with sequence valve -Speed control circuits- Regenerative cylinder Circuits-Pump unloading circuit -Counter balance valve circuit – Pneumo hydro circuit - Types of accumulators -Accumulators circuits -sizing of accumulators -working of intensifier - Applications of Intensifier.
Practical:
1. Design and testing of speed control circuits
2. Meter-in and Meter-out circuits
INDUSTRIAL CIRCUITS AND MAINTENANCE OF FLUID POWER SYSTEM
Theory:
Sequential circuit design for simple applications using cascade method, step counter method - Introduction to PLC-ladder diagrams, PLC applications in fluid power control - Installation, Maintenance and troubleshooting of Fluid Power systems.
Practical:
1.Design and testing of electro hydraulic circuit.
Reference Book:
1. S. R. Majumdar, “Oil Hydraulicsâ€, Tata McGraw Hill Publishing Company Pvt Ltd. New Delhi, 2004
2. James L. Johnson, “Introduction to Fluid Powerâ€, Delmar Thomson Learning, 2003
3. S. R. Majumdar, “Pneumatic systems – Principles and maintenanceâ€, Tata McGraw Hill Publishing Company Pvt Ltd. New Delhi, 2008
4. Andrew Parr, “Hydraulics and Pneumaticsâ€, Jaico Publishing House, 2006
5. Jagadeesha T, “Fluid Power Controlâ€, Wiley India Limited, 2013
Text Book:
1. R.Srinivasan, “Hydraulic and Pneumatic Controlsâ€, Vijay Nicole Publication, 2004
2. Anthony Esposito, “Fluid Power with Applicationsâ€, Pearson Education New Delhi, 2011
