H & P Lecture # 1INTRODUCTION

H & P Lecture # 1

H & P Lecture # 1HYDRAULICS & PNEUMATICS3 + 1 Credit Hours3 Contact Hours (Theory)2 contact Hours (Practical)Total Marks = 100Quiz 1 = 10Mid Term = 30Quiz 2 = 10Final Term = 40Class Participation = 10

H & P Lecture # 1

Books:Pneumatic and Hydraulic Systems by W. BoltonHydraulics and Pneumatics by Andrew A. Parr Pneumatics: Basic Level by Peter Croser, Frank EbelElectropneumatics: Basic Level by G. Prede D. Scholz Hydraulics: Basic Level by D. Merkle, B. Schrader, M. ThomesElectrohydraulics: Basic Level by D. Merkle, K. Rupp, D. Scholz

H & P Lecture # 1

H & P Lecture # 1

Fluid Power:Fluid poweris the use of fluids under pressure to generate, control, and transmit power. Fluid power is subdivided intohydraulics using a liquid such asmineral oilandpneumaticsusing a gas such as air or other gases.H & P Lecture # 1

H & P Lecture # 1

H & P Lecture # 1COMPONENTS OF AUTOMATION

H & P Lecture # 1

H & P Lecture # 1Amplifiers

H & P Lecture # 1

H & P Lecture # 1CHOICE OF WORKING MEDIA / CONTROL MEDIA

Electrical Current

Pneumatics: Control media is a compressible fluid

Hydraulics: Control media is incompressible fluid

H & P Lecture # 1

H & P Lecture # 11. Electric controlSystem Comparison

H & P Lecture # 1

H & P Lecture # 1Hydraulic / Pneumatic Control

H & P Lecture # 1

H & P Lecture # 12.Hydraulic Control Circuit

H & P Lecture # 1

H & P Lecture # 13. Pneumatic Control System

H & P Lecture # 1

H & P Lecture # 1COMPARISON OF ACTUATORS

Pneumatic ActuatorsHydraulic ActuatorsElectric actuatorsFACTORSAdvantagesDisadvantagesAdvantagesDisadvantagesAdvantagesDisadvantagesCostRelatives inexpensiveSystems are expensiveRelative inexpensiveSpeedHigh speedModerate speedsNot suitable for high speed Fast actuatorsWork area pollutionDo not pollute work area with fluidsLeakage can pollute the work areaDo not pollute work areaLab WorkCan be used in lab workNot suitableSuitableNo return line requiredNeed for a return lineEnergy storageGood (Reservoir)Limited (Accumulator)Limited (Batteries)

H & P Lecture # 1

H & P Lecture # 1

Working conditionSafe in flammable & explosive atmFire HazardDanger fromelectric shockControllabilityCompressibility of the air limits controlOil is incompressible, improve controlAccurate controlNoiseNoise pollution from exhaustQuite operationLow noise

Pneumatic ActuatorsHydraulic ActuatorsElectric actuatorsFACTORSAdvantagesDisadvantagesAdvantagesDisadvantagesAdvantagesDisadvantages

H & P Lecture # 1

H & P Lecture # 1General Applications of pneumatic systems:PackagingFillingDriving of axesDoor controlTransfer of materialsTurning and inverting of partsStacking of componentsStamping and embossing of components

H & P Lecture # 1

H & P Lecture # 1Pneumatics is used in carrying out machiningand working operations.DrillingTurningMillingSawingFinishing

H & P Lecture # 1

H & P Lecture # 1Position switching of a conveyorbelt by pneumaticsPneumatically controlled Drilling machine

H & P Lecture # 1

H & P Lecture # 1Pneumatic Cutter(Rod less pneumatic cylinder)

H & P Lecture # 1