2008LECT01 Introduction

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    TSM 363: Fluid Power Systems

    Introduction

    and

    Basic Concepts

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    TSM 363, Lect 01

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    Hydraulic Power

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    TSM 363, Lect 01

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    Goals of this Lecture

    Course preview

    Expectation communications

    Basic concepts introduction

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    Course Goals

    Through the study of this course, you are expected to be

    able to:

    describe how a typical mobile hydraulic system work;

    determine proper parameters for simple hydraulic

    systems;

    select right components for simple hydraulic systems; and

    create schematics of simple hydraulic system usingstandard symbols.

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    Course Outlines

    1 1/14, M Introduction to mobile fluid power Ch. 1 & 2

    2 1/16, W Energy and Power in Hydraulic Systems Ch. 16 & 17

    3 1/23, W Hydraulic Power Generation: Pumps Ch. 11 & 12

    4 1/28, M Control of Hydraulic Power Generation Ch. 11 & 12

    5 1/30, W Hydraulic Power Distribution: Valves Ch. 6, 8 & 9

    6 2/04, M Control of Hydraulic Power Distribution Ch. 6, 8 & 9

    7 2/06, W Electrohydraulic controls in hydraulicsystems

    Ch. 3 & 7

    8 2/11, M Hydraulic hoses and pipelines Ch. 14 & 15

    9 2/13, W Hydraulic Power Deployment: Actuators Ch. 4 & 5

    10 2/18, M Hydrostatic Transmission Ch. 13

    11 2/20, W Hydraulic Power Regulation: Ch. 18

    12 2/25, M Hydraulic Fluids and Conditioning Ch. 16

    13 2/27, W Hydraulic Systems Maintenance Ch. 18

    14 3/03, M Basic Hydraulic Circuits Ch. 18

    15 3/05, W Integrated Hydraulic Circuits Notes

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    Learning Expectation & Assessments

    Activities Points

    Weekly quiz (random, no make-up)(5 counted, 10 pts each)

    50

    Weekly Homework(5 counted, 20 pts each)

    100

    Laboratory Reports(5 counted, 30 pts each)

    150

    Final Exam 200

    Total 500

    [A, B, C, D, F] =

    [450, 400, 350, 300, 0]

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    Three Power Transmission Methods

    Mechanical

    Electrical

    Fluid

    o multiplies forces

    o constant torque at all speeds

    o can work remotely and aroundcorners

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    Advantages of Hydraulic Power

    Variable Speedo Actuators can be driven from a high to low speed

    using a flow control valve.

    Reversibleo Hydraulic actuators can be instantly reversed in

    direction of motion.

    Overload Protectiono A pressure relief valve protects a hydraulic circuit

    from overload.o Also, a pressure relief provides a set clamping force.

    Can Be Stalledo A load can stall a fluid power circuit without damage.

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    An Overview of Off-road Equipment

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    A Typical Hydraulic Power System

    M

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    Components of Hydraulic Systems

    PowerGeneration

    PowerDistribution

    PowerDeployment

    FluidsConditioning

    Power

    Regulation

    Core Knowledge Base

    Hydraulic Pumps Control of Hydraulic Pumps

    HydraulicValves & LinesControl ofHydraulic Valves

    Electro-hydraulicValves

    HydraulicCylinders & Motors

    HydrostaticPower Transmission

    PowerAbsorbing Device

    PowerStoring Device

    PowerRegeneration Device

    Hydraulic Fluids Fluids ConditioningHydraulic Systemsmaintenance

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    Fluid Power Energy Transmission

    M

    Energy

    Level

    ni, TiP1,Q1

    P4

    Q4

    vo, Fo

    no, To

    PH-out PM-out

    PM-in PH-in

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    Example of Hydraulic Systems

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    Example of System Schematics

    6 01

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    Power Generation Component Symbols

    TSM 363 L 01

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    Power Distribution Component Symbols

    TSM 363 L t 01

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    Power Deployment Component Symbols

    TSM 363 L t 01

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    Power Regulation Component Symbols

    TSM 363 L t 01

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    Fluid Conditioning Component Symbols

    TSM 363 Lect 01

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    Lecture Summary

    Introduced course goals and expectations

    Introduced a few basic concepts:

    Typical hydraulic systems

    Core knowledge bases

    Energy transmission process

    Commonly used symbols used in hydraulic system

    schematics