University of Florida

ABE 5152
Electro-Hydraulic Circuits and Control

Semester Taught - Spring

Catalog Description

Credits: 3

Engineering analysis, design and experimentation of electro-hydraulic circuits and systems. Including the design of hydraulic circuits, fluid power system components, hydraulic actuator analysis, servo and proportional valve performance, and elecro-hydraulic control theory and applications.

Pre-requisites/Co-requisites

Fluid dynamics or permission of instructor

Course Objectives

To give students a rigorous background in the theoretical and applied concepts associated with development of fluid power control and systems design. As a result students should be able to develop theoretical control models, as well as build practical fluid power systems.

Instructors

Dr. Tom Burks
Frazier Rogers Hall, #225
Phone: 352-392-1864 ext. 225
E-mail: TFBurks@ifas.ufl.edu

Material/Supply Fees

None

Class Materials Required

Textbooks

  • Hydraulic Control Systems, Noah Manring, 2005, John Wiley and Sons, Inc. (Required)
  • Fluid Power Circuits and Controls, John Cundiff, 2002, CRC Press (Recommended)
  • Hydraulic Fundamentals, Lab-Volt, 1997, (Provided)
  • Electric Control of Hydraulic Systems, Lab-Volt, 1997, (Provided

Course Outline

(as time permits)

  • Topic 1: Fluid Power Basics (CH 1 & CH 2: Cundiff)
  • Topic 2: Fluid Properties (CH 1: Manring)
  • Topic 3: Fluid Mechanics (CH 2: Manring)
  • Topic 4: Dynamic Systems and Controls (CH 3: Manring)
  • Topic 5: Pressure Control (CH 3: Cundiff)
  • Topic 6: Creation and Control of Fluid Flow (CH 4: Cundiff)
  • Topic 7: Hydraulic Control Valve Dynamics (CH 4: Manring)
  • Topic 8: Hydraulic Pump Dynamics (CH 5: Manring)
  • Topic 9: Rotary Actuators and Linear Actuators (Cundiff/Manring)
  • Topic 10: Valve Controlled Hydraulic Systems (CH 7: Manring)
  • Topic 11: Pump Controlled Hydraulic Systems (CH 8: Manring)
  • Topic 12: Hydrostatic Transmissions (CH 6: Cundiff)
  • Topic 13: Temperature and Contamination Control (CH 8: Cundiff)
  • Topic 14: Auxiliary Components (CH 9: Cundiff)
  • Topic 15: Electro-Hydraulic Servo Valves (CH 11: Cundiff, CH 7: Merritt)
  • Topic 16: Proportional Valves (CH 12: Cundiff)
  • Topic 17: Non-linearities in Control Systems (CH 10: Merritt)

Laboratory Schedule

Week

Assignment

1

Hydraulic Fundamentals (HF)
Sections  1-1, 1-2
Intro to LabVolt Station, Demo, and Safety Overview

2

HF Sections 2-1, 2-2

Pressure Limitation
Pressure and Force

3

HF Sections 2-3, 2-4

Flow Rate and Velocity
Work and Power

4

HF Sections 3-1, 3-2

Cylinder Control
Cylinders in Series

5

HF Sections 3-3, 4-1

Cylinders in Parallel
Accumulators

6

HF Sections 4-2, 4-3

Hydraulic Motor Circuits
Pressure Reducing Valves

8

Electrical Control of Hydraulic Systems (ECHS)
Sections 2-2, 2-3
Ladder Diagrams
Basic Electrically-Controlled Hydraulic System

9

ECHS Sections 3-1, 3-2

Hydraulic Sequencing of Cylinders
Electrical Sequencing of Cylinders

10

ECHS Sections 3-3, 4-2

Speed Regulation and Motor Breaking of Hyd. Motors
Safety Circuits

11

ECHS Section 3-4

Continuous Reciprocation with Dwell Period

12

ECHS Section 4-1

Drilling Systems

Grading

 

Grading Method Percentage
Homework 30%
Laboratory Exercises 15%
Term Design Project 15%
Mid-Term Exam 20%
Final Exam - Non comprehensive 20%
  1. Homework will be assigned from the textbook. Independent work is required, yet student interaction is permitted.
  2. Laboratory exercises will be conducted using Lab-Volt training systems, Lab exercise will be completed in teams, with each team turning in their completed report from manual.
  3. The student is expected to participate in class design project. The class will be divided into teams with the size depending on the number of students in the class.
  4. There will be two exams for the class, each exam will cover material previously discussed in class. The final is non-comprehensive.

Academic Honesty

In 1995 the UF student body enacted an honor code and voluntarily committed itself to the highest standards of honesty and integrity. When students enroll at the university, they commit themselves to the standard drafted and enacted by students.

The Honor Pledge: We, the members of the University of Florida community, pledge to hold ourselves and our peers to the highest standards of honesty and integrity.

On all work submitted for credit by students at the university, the following pledge is either required or implied: "On my honor, I have neither given nor received unauthorized aid in doing this assignment."

Students should report any condition that facilitates dishonesty to the instructor, department chair, college dean, Student Honor Council, or Student Conduct and Conflict Resolution in the Dean of Students Office.

(Source: 2012-2013 Undergraduate Catalog)

It is assumed all work will be completed independently unless the assignment is defined as a group project, in writing by the instructor.

This policy will be vigorously upheld at all times in this course.

Accommodation for Students with Disabilities

The Disability Resource Center coordinates the needed accommodations of students with disabilities. This includes registering disabilities, recommending academic accommodations within the classroom, accessing special adaptive computer equipment, providing interpretation services and mediating faculty-student disability related issues.

0001 Reid Hall, 352-392-8565, www.dso.ufl.edu/drc/  

Software Use

All faculty, staff and students of the university are required and expected to obey the laws and legal agreements governing software use. Failure to do so can lead to monetary damages and/or criminal penalties for the individual violator. Because such violations are also against university policies and rules, disciplinary action will be taken as appropriate.

Campus Helping Resources

Students experiencing crises or personal problems that interfere with their general well-being are encouraged to utilize the university’s counseling resources. The Counseling & Wellness Center provides confidential counseling services at no cost for currently enrolled students. Resources are available on campus for students having personal problems or lacking clear career or academic goals, which interfere with their academic performance.

  • University Counseling & Wellness Center, 3190 Radio Road, 352-392-1575, www.counseling.ufl.edu/cwc/

    Counseling Services
    Groups and Workshops
    Outreach and Consultation
    Self-Help Library
    Training Programs
    Community Provider Database

  • Career Resource Center, First Floor JWRU, 392-1601, www.crc.ufl.edu/