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Hydraulics

Course Number: MEC 120
Transcript Title: Hydraulics
Created: May 12, 2014
Updated: May 12, 2014
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

Prerequisites

EET 111

Course Description

Introduces the basic principles of hydraulics and applies these principles to build, maintain, and troubleshoot industrial hydraulic circuits. Covers theory, generation, storage, transmission, and usage of hydraulic energy, pressure, and flow. Introduces hydraulic schematics and circuits as well as identification and operation of basic hydraulic components. Introduces basic ladder logic and PLCs to automate, control, and modify an electrically controlled hydraulic system with solenoid-operated directional control valves. Includes a 3-hour per week laboratory session. Prerequisite: EET111. Audit available.

Intended Outcomes

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

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