Course code LauZ4191

Credit points 2.25

Hydraulics and Pneumatics II

Total Hours in Course60

Number of hours for lectures16

Number of hours for laboratory classes8

Independent study hours36

Date of course confirmation07.02.2017

Responsible UnitInstitute of Mechanics and Design

Course developer

author Mehānikas un dizaina institūts

Ēriks Kronbergs

Dr. sc. ing.

Replaced course

VidEB015 [GVIEB015] Hydraulics and Pneumatics II

Course abstract

The aim of the study course is to explain the basics of the hydraulic and pneumatic drive of the machine. Students acquire the functional significance of the elements of the hydraulic and pneumatic systems, their design, operating principles and parameters, as well as the basic conditions and methodology for designing these systems. Theoretically and practically, the management of hydraulic and pneumatic systems, control options and diagnostic methods are mastered.

Learning outcomes and their assessment

Knowledge - Understands the basic rules of fluid mechanics, the construction and operation of static and dynamic equipment and machines, the constructive design and operation of pumps and compressors together with the pipeline network. Determine the application possibilities of hydraulic and pneumatic drive systems - Laboratory works.
Skills - you can evaluate the laws of equilibrium and motion of fluids from the engineering point of view, which operate in fluid containers, pipelines and openings through which the discharge takes place, as well as orientations in schematic drawings of hydraulic drives and pneumatic drives. Evaluates the static and dynamic functioning of hydrosystems, understands the functions, applicability and operation of the apparatus used - Laboratory works.

Competence - Designing hydraulic drives for various machinery and machinery members for appropriate operating conditions. Resolves issues of hydraulic drive and pneumatic drive maintenance to ensure non-refoulement - Laboratory work.

Course Content(Calendar)

1. Hydro Drive Introduction and Designations in Schemes. Lecture 1h.
2. Selection of the output parameters for the hydraulic drive system, valve functions. Laboratory work: Valve research. Lecture 1h, Lab 2h.
3. Hydraulic drive diagram and working fluids. Lecture 1h.
4. Calculation of the main parameters of the hydraulic drive scheme. Lecture 1h.
5. Capacity pumps. Laboratory work: Gear pumps. Laboratory work: Piston pumps. Lecture 1h, Lab 2h.
6. Calculation of volume pumps. Lecture 1h.
7. Direct control valves. Laboratory work: Direct control valves. Lecture 1h, Lab 1h.
8. Direct control valve selection and calculation. Lecture 1h.
9. Fluid movement speed control. Laboratory work: Throttle regulation. Lecture 1h, Lab 1h.
10. Calculation of the hydraulic resistance pressure drop. Laboratory work: Choice of auxiliary equipment. Lecture 1h, Lab 2h.
11. Overview and management of pneumatic systems. Lecture 1h.
12. Calculation of pneumatic cylinder size. Lecture 1h.
13. Signs, standards and explanations in pneumatics. Lecture 1h.
14. Logical function AND valve. Lecture 1h.
15. Flow divider types for controlling pneumatic motors. Lecture 1h.

16. Adjusting the piston speed of the cylinder in pneumatic. Lecture 1h.

Requirements for awarding credit points

Examination
The student’s exam is arranged after defended all laboratory works.

Description of the organization and tasks of students’ independent work

Laboratory data processing - 20h.

Preparation of answers to laboratory test questions - 12 h.

Criteria for Evaluating Learning Outcomes

The exam evaluation cumulatively includes evaluations of defended labs.

Compulsory reading

1. Birzietis G., Kaķītis A., Kronbergs Ē., Mežs A., Vizbulis J. Lauksaimniecības hidraulika. Uzdevumi. [b.v.], 2002. 64 lpp.
2. Lielpēters P., Dorošenko R., Geriņš Ē. Fluidtehnika. Rīga: RTU, 2005. 183 lpp.
3. Lielpēters P., Ķirsis T., Kravalis K., Torims T. Fluīdu mehānika. Rīga: RTU Izdevniecība, 2009. 104 lpp.
4. Lielpeters P., Doroshenko R., Gerinsh E. Calculation of Pneumatic Conduits. Rīga: RTU, 2007. 118 p.

5. Croser P. Pneimatika: pamatlīmenis TP 101: mācību grāmata. Rīga: Festo, 2000. 219 lpp.

Further reading

1. Kronbergs Ē. Hidraulika un hidropiedziņa. Metodiskie norādījumi. Jelgava, 2015. 82 lpp.
2. Merkle D., Štraiders B., Toms M. Hidraulika. Apz. D. LB. - TP 501 - LV4. izdevums 01/92. Rīga: Festo, 2001. 283 lpp.

3. Joseph D., Renardy Y. Fundamentals of Two – Fluid Dynamics. New York: Springer, 1993. 441 p.

Periodicals and other sources

1. Fluid Power Journal ISSN: 1073-7898. Pieejams arī: http://fluidpowerjournal.com

Notes

The study course is included in the compulsory part of the professional Bachelor’s study program "Machine design and manufacturing" of Faculty of Engineering. 4th study year 7th semester.