Fluid Power and Electrical Control of Fluid Power Systems

Course Number: MEC 120
Transcript Title: Fluid Power
Created: May 12, 2014
Updated: May 24, 2018
Total Credits: 5
Lecture Hours: 40
Lecture / Lab Hours: 0
Lab Hours: 30
Satisfies Cultural Literacy requirement: No
Satisfies General Education requirement: No
Grading options: A-F (default), audit
Repeats available for credit: 0

Prerequisites

Course Description

Introduces the basic principles of hydraulics and pneumatics and applies these principles to build, maintain and troubleshoot industrial hydraulic and pneumatics circuits. Covers theory, generation, storage, transmission, and usage of hydraulic and pneumatics energy, pressure, and flow. Introduces hydraulic and pneumatics schematics and circuits as well as identification and operation of basic hydraulic and pneumatics components. Introduces basic ladder logic and PLCs to automate, control and modify an electrically controlled hydraulic and pneumatics system with solenoid-operated directional control valves. Includes a 3-hour per week laboratory session. Prerequisite: MTH 65. Audit available.

Intended Outcomes

Upon successful completion of this course, students will be able to:

  1. Apply basic hydraulic and pneumaticprinciples to predict behavior of hydraulic and pneumaticcircuits.
  2. Build, operate, maintain, and troubleshoot manually controlled hydraulic and pneumatic circuits.
  3. Write technical reports using collected experimental data.
  4. Build, operate, maintain, and troubleshoot an electrically controlled hydraulic and pneumatic system.
  5. Identify hydraulic components and determine their application in hydraulic and pneumatic circuits.

Outcome Assessment Strategies

Evaluation is done via labs, quizzes, take home assignments, in class exercises, and exams.

Course Activities and Design

Lecture, discussion, online lessons, and lab exercises are the instructional methods used.

Laboratory activities include building, analyzing, and troubleshooting hydraulic circuits on a modular industrial hydraulics trainer. Instruments will be used to measure pressure, force, and flow rate. Theoretical predictions will be compared with observed values.

Course Content (Themes, Concepts, Issues and Skills)

  1. Introduction – Calculate area, volume pressure, force, flow rate, and actuator velocity. Unit conversion. Safety. Pascal’s Law. Hydraulic schematics.
  2. Hydraulic circuits and components - Check valves, pressure relief valves, directional control valves, cylinders, motors, accumulators, flow control valves, pressure control valves, hoses, connections, gauges, meters, and pumps.
  3. Industrial applications – regenerative extension, clamp and press, rotor brake, blade pitch, hydraulic torque and tensioning, verify operation and document performance.
  4. Flow control methods – meter in, meter out, and bypass/bleed off.
  5. Pressure control methods – sequence, counterbalance, pressure reducing, unloading, and brake valves.
  6. Maintenance – assembly/disassembly of hydraulic components, filters, fluids, contaminants, reservoirs, and breathers.
  7. Electrical control – ladder logic, limit switches, relays, contacts, proximity detectors, and PLCs.