fluid power systems theory and practice.ppt

7/22/2019 FLUID POWER SYSTEMS Theory and Practice.ppt

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FLUID POWER SYSTEMS

Theory and Practice

Oleh :

Ir.Arino Anzip,MEngSc

PROGRAM D3 TEKNIK MESIN - ITS


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Textbook

Anthony Esposito, Fluid Power with Applications, 7th Edition,Pearson Education Inc, 2009

Merkle D, Schrader B dan Thomas M, Hydraulics : Textbookand Workbook Basic Level TP 501, Festo Didactic GmbH andCo, 1998

Merkle D, Rupp K dan Scholz M, Electrohydraulics : Textbook

and Workbook Basic Level TP 601, Festo Didactic KG, 1994 Croser P, Pneumatics : Textbook and Workbook Basic Level

101, Festo Didactic KG, 1989

Prede D dan Scholz D, Electropneumatics : Textbook andWorkbook Basic Level TP 201, Festo Didactic GmbH and Co,

2002. Vickers Industrial Hydraulics Manual, 4th Edition, Vickers

Incorporated, 1999

Cundiff,J.S, Fluid Power Circuits and Controls, CRC Press, 2002


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LECTURE MATERIALS COVERED

Introduction to Fluid Power Systems

Hydraulic Fluids

Energy and Power in Hydraulic Systems

Signal Control Section of Hydraulic Systems Hydraulic Power Section

1. Power Supply Section

2. Power Control Section

3. Drive Section

Hydraulic Circuit Design and Analysis


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Pneumatic Systems

1. Air Preparation

2. Pneumatic Systems Components

Pneumatic Circuit and Applications

1. Pneumatic Circuit Design

2. Air Pressure Losses Calculation3. Basic Pneumatic Circuit

Basic Electrical Control for Fluid Power Circuit

1. Electrical Components2. Electro-pneumatic

3. Electro-hydraulic


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POWER TRANSMISSION SYSTEM


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Power Transmission Methods

1. Mechanical Power Transmission :

Menggunakan elemen elemen mesin untuk

memindahkan daya


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2. Electrical Power Transmission Systems

Memanfaatkan jaringan listrik sebagai media

pemindah daya listrik


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Electrical Network Systems


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3.Fluid Power Systems

Terdiri atas Sistem Pneumatik dan Hidraulik


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Introduction to Fluid Power Systems

Fluid Power :

Technology which deals with the generation,

control and transmission of power using

pressurized fluids

Fluid itself can be divided by

1. Air or Gas

2. Liquid such as water, mineral - based petroleum

oils and synthetic oils


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The Difference Between Gas and Liquid


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Fluid Systems in Our Society :

Fluid Transport SystemsDelivery of fluid from one place to another to

accomplish some useful purpose such as pumping

station and pneumatic conveying

Fluid Power Systems

1. Pneumatic Systems using gas or air as working fluid

or bearing media

2. Hydraulic Systems using hydraulic fluids likepetroleum oils as bearing media (working fluid)


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HYDRAULIC SYSTEMS


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Pumping Station


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Components of Hydraulic Systems

Tank or Reservoir to contain oil

Pump converts mechanical power into hydraulic

power

Electric Motor to drive pump

Valve to control oil direction, pressure and flow rate

or capacity

Actuator to convert hydraulic power to mechanical

power like hydraulic motor and cylinder Piping System carrying oil from one component to

another


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Hydraulic Systems


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HYDRAULIC SYSTEMS


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Hydraulic Systems Components


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Components of Pneumatic Systems

Air Receiver to contain pressurized air Compressor to compress air

Electric Motor or other Prime Mover to drivecompressor

Valve to control air direction, pressure andflow rate or capacity

Actuator to convert gas or air power tomechanical power like pneumatic motor andcylinder

Piping System carrying air from onecomponent to another


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Pneumatic Systems

Komponen komponen sistem Pneumatik


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Schematic Drawing of Pneumatic

Systems


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APPLICATIONS OF FLUID POWER SYSTEMS

Mobile : Fluid power is used to transport, excavate, liftmaterials and control or power mobile equipment such asbackhoes, tractors, graders etc

Industrials :Provide power transmission and motioncontrol for machines of industry such as metalworking

equipment, controllers, material handling and assemblyequipment

Aerospace : Fluid power is used for commercial andmilitary aircraft, spacecraft and related support equipmentsuch as landing gear system, brakes, flight controls and cargo

loading equipment Health : Dentist equipment, bed for patients, radiology

equipment etc


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Backhoe


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Injection Molding Machine


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Hydraulic Press Machine


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Hydraulic Elevator in CVN USS George

Washington


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Aircraft Hydraulics


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B2B Stealth Bomber


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Aerospace Hydraulics


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Pneumatic Application in Industry

HMS QUEEN ELIZABETH


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HMS - QUEEN ELIZABETH


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WHEN FLUID POWER SYSTEMS ARE USED ?


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The Advantages of Fluid Power Systems

Multiplication and variation of forces Easy and accurate control

Multi function control

Compact

Low speed torque

Constant force or torque

Simplicity and safety

Established standards and engineering(our Lab. uses ISO and ANSI standards)


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Disadvantages of Fluid Power Systems

Higher initial investment Transferring energy is slower when

compared to electrical system

When hydraulic systems leak, it canpollute the environments

More dangerous than other systems due

to high pressure fluids involved i.e. 15000psi of working pressure


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Fluid Power Systems Personnel in Industry Fluid power mechanics

Responsible for repair and maintenance of fluidpower equipment

Fluid power technicians

These people assist engineers in designing, testing,troubleshooting and maintaining fluid powersystems

Fluid power engineers

People who perform advanced design, developmentand testing of fluid power equipment

fluid power systems theory and practice.ppt

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