Fluid Power Circuits and Controls

1. Auflage 2001
ISBN: 978-0-8493-0924-3
Verlag: CRC Press

Buch, Englisch, 560 Seiten, Format (B × H): 157 mm x 242 mm, Gewicht: 943 g

Reihe: Mechanical and Aerospace Engineering Series

Engineers not only need to understand the basics of how fluid power components work, but they must also be able to design these components into systems and analyze or model fluid power systems and circuits. There has long been a need for a comprehensive text on fluid power systems, written from an engineering perspective, which is suitable for an undergraduate-level course in fluid power.Fluid Power Circuits and Controls: Fundamentals and Applications encourages students to think of the collection of components as a system. The author illustrates each concept with a circuit diagram, and as each component is discussed, immediately places it in a circuit and analyzes its performance. This approach allows students to immediately apply what they have learned and encourages them to think about how the component operating characteristics interact with the rest of the circuit.Covering all aspects of the industry, this book:Develops the basic concept for power delivery with fluidsReviews basic concepts of fluid mechanics and discusses the key properties of the fluidsDiscusses the creation and control of flow and the various methods used to control pressure in a circuitProvides a detailed example of the classic problem of hydrostatic transmission designPresents characteristics of auxiliary components and applicable SAE standardsAddresses pneumatics, focusing on the difference in power transmission for liquid and gasDiscusses servo valves and proportional valves without requiring a background in automatic controlsThe text is richly illustrated, filled with fully worked example problems, and reinforced with exercises in each chapter. Fluid Power Circuits and Controls offers valuable design experience and the background its readers need to approach real-world fluid power problems with confidence.

Zielgruppe

Mechanical engineers, electrical engineers, power engineers and students in these disciplines

Autoren/Hrsg.

Cundiff, John S.

Fachgebiete

• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Strömungslehre
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Maschinenbau
• Naturwissenschaften Physik Mechanik Kontinuumsmechanik, Strömungslehre

Inhaltsverzeichnis

PrefaceBRIEF OVERVIEW OF FLUID POWERIntroductionConcept of Fluid PowerSummaryFLUID POWER BASICSIntroductionFluid StaticsFunctions of a Working FluidFluid PropertiesFlow in LinesLeakage FlowOrifice EquationSummaryData Selected for Hydraulic FluidsPRESSURE CONTROLIntroductionReview of Needed SymbolsRelief ValveUnloading ValveSequence Valve and Pressure-Reducing ValveCounterbalance Valve and Brake ValveSummaryCREATION AND CONTROL OF FLUID FLOWIntroductionFixed Displacement PumpsFixed Displacement Pump CircuitsVariable Displacement Pump CircuitsComparison of Pump Performance Characteristics for Three Main DesignsMultiple Pump CircuitsPump MountsFlow Control ValvesCircuits Using Flow Control ValvesSummaryROTARY ACTUATORSIntroductionStall Torque EfficiencyTypical Performance Data for a Gear motorComparison of Motor Performance Characteristics for Three Main DesignsPerformance Characteristics of Low-Speed, High-Torque MotorsDesign Example for Gear Motor ApplicationInteraction of Pump and Motor CharacteristicsBent Axis motorsRadial Piston motorsMotor-Gearbox CombinationsOscillating ActuatorSummaryCurve Fitting TechniqueHYDROSTATIC TRANSMISSIONSIntroductionMechanical TransmissionsIntroduction to Hydrostatic TransmissionsHydrostatic Transmissions for Vehicle PropulsionDifferent Configurations of Hydrostatic Transmissions to Propel VehiclesClassification of Hydrostatic TransmissionsClosed-Circuit Hydrostatic TransmissionsClosed-Circuit, Closed-Loop Hydrostatic TransmissionsHydrostatic Transmission DesignSummaryBasic Concepts in TractionSelected Catalog Data for Hydrostatic Transmission Design ProblemsLINEAR ACTUATORSIntroductionAnalysis of Cylinders in Parallel and SeriesSynchronization of CylindersCushioningRephasing of CylindersPressesLoad AnalysisTypes of CylindersCylinder ConstructionSummaryTEMPERATURE AND CONTAMINATION CONTROLIntroductionTemperature ControlContamination ControlSummaryAUXILIARY COMPONENTSIntroductionReservoirHydraulic LinesFluid Velocity in ConductorsOptions for Connecting ComponentsInstallation of LinesDesign Life of ComponentsSystem IntegrationSummarySelected Design Data for Fluid ConductorsPNEUMATICSIntroductionOrifice EquationCompressorsReceiverPipelinesPreparation of Compressed AirCylindersMotorsAdditional Actuator UnitsValvesSummaryStandard ConditionsSERVO VALVESIntroductionConceptServo Valve ConstructionValve PerformanceTypes of Servo SystemsServo AmplifiersServo AnalysisSummaryPROPORTIONAL VALVESIntroductionTypes of Proportional ValvesAnalysis of Proportional Directional Control ValveComparison of Servo and Proportional ValvesSummarySummary of EquationsIndex