Engineering Book from C.H.I.P.S.

Hydraulic Power System Analysis
by Arthur Akers

Hydraulic Power System Analysis demonstrates modern computer-aided analytical techniques used to model nonlinear, dynamic fluid power systems.


  • Treats fluid power system modeling at a level ideally suited to design engineers with limited knowledge of fluid power
  • Emphasizes a clear division between steady state and dynamic modeling
  • Reviews the basic features of automatic control theory and introduces noise reduction for fluid power systems
  • Discusses bulk modulus related to entrained air and flexible hoses, explaining adverse dynamic effects
  • Combines dynamic analysis of flow allocation and explores the dynamics involved in flow division in the circuit



  • What Is Fluid Power?
  • Brief History of Fluid Power
  • Fluid Power Applications, Present and Future
  • Advantages of Using Fluid Power Systems
  • A Probable Future Development

Properties of Fluids and Their Units

  • Basic Properties of Fluids
  • Compressibility of Liquids

Steady State Modeling

  • Rationale for Model Development
  • Source of Equations
  • Conservation of Flow and Energy
  • Friction Losses in Pipes and Fittings
  • Basic Component Equations
  • Worked Examples

Dynamic Modeling

  • Development of Analytical Methods
  • Software Options
  • Dynamic Effects
  • Worked Examples
  • Modeling Hints and Tips

Linear Systems Analysis

  • Linear Systems
  • The Laplace Transform
  • Inversion, the Heaviside Expansion Method
  • Stability
  • Block Diagrams
  • Spring-Mass-Damper Time Response to Unit Step Force
  • Time Constant

Frequency Response and Feedback

  • Mathematics of Frequency Response
  • Frequency Response Diagrams
  • Using Frequency Response to Find Controller Gain

Valves and Their Uses

  • Directional Control Valves
  • Special Directional Control Valves, Regeneration
  • Flapper Nozzle Valve
  • Flow Control Elements
  • Relief Valves
  • Unloading Valve
  • Pressure Reducing Valve
  • Pressure Sequencing Valve
  • Counterbalance Valve
  • Flow Regulator Valve

Pumps and Motors

  • Configuration of Pumps and Motors
  • Pump and Motor Analysis
  • Leakage
  • Form of Characteristic Curves

Axial Piston Pumps and Motors

  • Pressure During a Transition
  • Torque Affected by Pressure Transition - Axial Piston Pump
  • Torque and Flow Variation with Angle for Multicylinder Pumps

Hydrostatic Transmissions

  • Performance Envelope
  • Hydrostatic Transmission Physical Features
  • Hydrostatic Transmission Dynamic Analysis

Pressure Regulating Valve

  • Purpose of Valve
  • Operation of Valve
  • Mathematical Model of Valve
  • Effect of Damping

Valve Model Expansion

  • Basic Valve Model
  • Model Expansion
  • An Assessment of Modeling

Flow Division

  • The Hydraulic Ohm Method
  • Brief Review of DC Electrical Circuit Analysis
  • Fluid Power Circuit Basic Relationships
  • Consolidation of Fluid Power Resistances
  • Application to Unsteady State Flow

Noise Control

  • Discussion of Method
  • Mathematical Model
  • Effect of Entrained Air in Fluid
  • Further Discussion of the Mathematical Model
  • Other Methods of Noise Control
  • Damping Methods


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Hydraulic Power System Analysis
by Arthur Akers
2006 400 pages $148.95 + shipping
Texas residents please add 6.75 % sales tax

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