Full Title Pneumatic / Electro-Pneumatic and Hydraulic Systems

Short Title Pneumatic / Electro-Pneumatic

Code MECT06017
Level 06
Credit 05

Author Coppieters, Rudie
Department Mechatronics

Subject Area Mechatronics
Attendence 75%
Fee

Description

This module will give the students an introduction to pneumatic/electro pneumatic and hydraulic systems.It will cover basic pneumatic and hydraulic components and their use in complete systems. The student will also become acquainted with standard pneumatic and hydraulic symbols in accordance with IEC standards and be able to use a software simulation package to draw and simulate practical circuits.

This module will also cover advanced pneumatic and electro pneumatic circuits including sequencing of pneumatic cylinders. The circuits will be build and simulated in software.


Indicative Syllabus

Electro-pneumatics

Use of electrical switches and relays. Latching. Use of electrical timers. Sequencing of pneumatic cylinders to include, A A-, AB A-B- etc. Draw and simulate standard electro-pneumatic circuits using a software package e.g. Fluidsim.

Advanced pneumatics techniques including two group cascade circuits.

Pneumatics

Advanced pneumatics techniques including two group cascade circuits.

Sensors

Proximity switches: inductive, capacitative, magnetic (reed) and optical.

Indicative Practicals/Projects

Demonstration of safe working practices in the workshop. Hazards associated with fluids under pressure, actuators in motion and electricity.  

Construction of circuits using cylinders, directional control valves, pressure control valves and flow regulators with electro-pneumatic components such as relays and timers.

Construction of electro-pneumatic sequential circuits involving the use of two cylinders. 

Demonstration of basic electro-pneumatic circuits using proximity, limit and pressure switches.  

Indicative Practicals/Projects

Demonstration of safe working practices in the workshop. Hazards associated with fluids under pressure, actuators in motion and electricity.  

Construction of circuits using cylinders, directional control valves, pressure control valves and flow regulators with electro-pneumatic components such as relays and timers.

Construction of electro-pneumatic sequential circuits involving the use of two cylinders. 

Demonstration of basic electro-pneumatic circuits using proximity, limit and pressure switches. 

Electro-pneumatics

Use of electrical switches and relays. Latching. Use of electrical timers. Sequencing of pneumatic cylinders to include, A A-, AB A-B- etc. Draw and simulate standard electro-pneumatic circuits using a software package e.g. Fluidsim.

Pneumatics:

Compressed air production. Absolute and gauge pressure.

Manipulation of F=PA and Q=VA formulae.

Double and single acting cylinders, directional control valves (3/2 and 5/2), pilot air. Pressure and flow regulators, non-return valves, cylinder speed control.

Pneumatic timers and sequential circuits.

Hydraulics

Pascal’s law, hydraulic power.

Hydraulic fluids, reservoirs and distribution, filters.

Hydraulic pumps and actuators.

Directional, flow and pressure control valves.

Hydraulic circuits including metering, counterbalancing, use of regenerative cylinders, sequencing.

Directional control valves, power units and safety features.

Indicative Practicals/Projects

Demonstration of safe working practices in the laboratory. Hazards associated with fluids under pressure, actuators in motion and electricity.

Construction of circuits using cylinders, directional control valves, flow and pressure control valves, timers.

Construction of two group pneumatic cascade circuits.

Demonstration of commonly encountered basic power hydraulic circuits

e.g. sequence, counterbalance, flow control, regenerative.

Pneumatics:

 Compressed air production. Absolute and gauge pressure

Double and single acting cylinders, directional control valves (3/2 and 5/2), pilot air. Pressure and flow regulators, non-return valves, cylinder speed control

Manipulation of F=pA and Q=vA formulae

Pneumatic timers and sequential circuits.

 Electro-pneumatics

Control of cylinders using pneumatic and electrical techniques. Cylinder sequencing to include, A-, A+, A+B+, A-B- etc. Draw standard electro-pneumatic circuits using computer software.

Hydraulics and Electro-hydraulics

Hydraulic power, Bernoulli's equation

Hydraulic fluids, reservoirs and distribution, filters

Hydraulic actuators, pumps and motors

Directional, flow and pressure control valves

Accumulators

Hydraulic circuits including metering, counterbalancing, use of regenerative    cylinders, quick approach, hydrostatic drive, sequencing and pressure offloading.

Motors, directional control valves, power units and safety features. Design and draw standard hydraulic circuits.

Pneumatics

Construction of circuits using cylinders, directional control valves, pressure control valves, flow regulators, timers. Construction of two group pneumatic cascade circuits.

Electro-pneumatics

Construction of circuits using electro-pneumatic components and relays, electronic timers, lights and alarms. Construction of two group electro-pneumatic cascade circuits.

Hydraulics

Construction of commonly encountered basic power hydraulic circuits.

e.g. sequence, counterbalance, flow control, regenerative, quick-approach.

Electro-hydraulics

Construction of basic hydraulic circuits with electrical control, using proximity, limit and pressure switches.

 


Learning Outcomes
On completion of this module the learner will/should be able to
  1. Describe the components of a compressed air and air treatment system.

  2. Demonstrate an understanding of pneumatic circuit operation, including sequence control.

  3. Apply the cascade method to solve pneumatic sequential problems involving cascade groups and cylinders.

  4. Demonstrate an understanding of basic hydraulic systems.

  5. Design and simulate electro-pneumatic circuits to sequence cylinders.

  6. Employ formulae to calculate flow rate, piston force, system pressure and piston size. 


Assessment Strategies

Continuous assessment via weekly laboratory sessions.


Module Dependencies
Pre Requisite Modules
Co Requisite Modules
Incompatible Modules

Coursework Assessment Breakdown %
Course Work / Continuous Assessment 40 %
End of Semester / Year Formal Examination 60 %

Coursework Assessment Breakdown

Description Outcome Assessed % of Total Assessment Week
Lab Work 2,3,5,6 40 OnGoing


End Exam Assessment Breakdown

Description Outcome Assessed % of Total Assessment Week
Final Exam 1,2,3,4 60 Week 15


Mode Workload

Type Location Description Hours Frequency Avg Weekly Workload
Lecture Flat Classroom Lecture 2 Weekly 2.00
Laboratory Practical Engineering Laboratory Lab 2 Weekly 2.00
Independent Learning Not Specified Independent Learning 8 Weekly 8.00

Total Average Weekly Learner Workload 4.00 Hours

Mode Workload

Type Location Description Hours Frequency Avg Weekly Workload

Total Average Weekly Learner Workload 0.00 Hours

Mode Workload

Type Location Description Hours Frequency Avg Weekly Workload

Total Average Weekly Learner Workload 0.00 Hours

Mode Workload

Type Location Description Hours Frequency Avg Weekly Workload

Total Average Weekly Learner Workload 0.00 Hours

Resources
Book Resources

Other Resources
Url Resources
Additional Info

ISBN BookList

Book Cover Book Details
Festo Festo TP 101 Festo
ISBN-10 ISBN-13
Festo Electro-Pneumatics 201 Festo
ISBN-10 ISBN-13
Chris Stacey Practical Pneumatics Butterworth-Heinemann
ISBN-10 0340662190 ISBN-13 9780340662199
Festo Fundamentals of pneumatic control engineering Festo
ISBN-10 ISBN-13