338-0534/02 – Hydraulics of Working and Production Machines (HPaVS)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits5
Subject guarantordoc. Dr. Ing. Lumír HružíkSubject version guarantorDr. Ing. Miroslav Bova
Study levelundergraduate or graduateRequirementCompulsory
Year1Semestersummer
Study languageCzech
Year of introduction2013/2014Year of cancellation
Intended for the facultiesFSIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
BOV69 Dr. Ing. Miroslav Bova
PAV70 doc. Ing. Bohuslav Pavlok, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Graded credit 2+2
Combined Graded credit 8+2

Subject aims expressed by acquired skills and competences

Students in the course apply knowledge of the subject hydraulic components and systems, and Design of hydraulic mechanisms and applies them to the hydraulic systems of working and production machines. Will get acquainted with the function of selected working and production machines and lead them to propose a hydraulic drive or transfer. They can analyze the characteristics and behavior of the machine and drive design or modify its management as required by the assignment. Will get acquainted with the specific problems of individual machines and drives such as gear drives mobile machines, mobile machines hydrostatic transmission, drives upgrades of mobile working machines, energy efficient hydrostatic systems, accumulator systems, hydraulics and water emulsion, etc.

Teaching methods

Lectures
Tutorials
Project work

Summary

In the course Hydraulics of Working and Production Machines, students learn about hydraulic systems of mobile work machines and selected special problems of hydraulic systems, production machines. These include drive chassis of mobile machines, mobile machines hydrostatic transmissions, drives upgrades of mobile working machines, energy efficient hydrostatic systems, systems with accumulators, with the emulsion and water hydraulics, etc.

Compulsory literature:

[1] FINDEISEN, D. Őlhydraulik. Berlin – Heidelberg: Springer Verlag, 1996. ISBN 13 978-3-23880-5. [2] GÖTZ, W. Hydraulics. Theory and Application. Ditzingen: Rexroth Bosch Group + OMEGON, 1998. 291 s. ISBN 0-7680-0242-7.

Recommended literature:

[3] NOACK, S. Hydraulics in Mobile Equipment. Ditzingen: Rexroth Bosch Group + OMEGON, 2001. 202 s. ISBN 0-7680-0886-7. [4] LIFT, H., HANSEL, M. Hydrauliksysteme in der Bau- und Kommunaltechnik. Würzburg: Vogel Verlag, 1991. 345 s. ISBN 3-8023-0445-4.

Way of continuous check of knowledge in the course of semester

E-learning

Další požadavky na studenta

Additional requirements for the student are not.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Application of hydrostatic drives and transmissions in mobile working machines. Specific requirements for hydraulic mobile machines (excavators, loaders, dozers, road machinery, building machines), etc. 2. Driving mechanisms of mobile machines. Composition of drive. Internal combustion engine: design, control, characteristics. 3. Torque characteristics of drives and working mechanisms. Operating point of drive. Starting of the drive. 4. Hydrostatic transmission. Control of the hydrostatic transmission. Characteristics of the hydrostatic transmission. Problems of filtration and cooling. 5. Multi-motor drives of mobile machines. Implementation of differential functions with parallel motors. Control of driving direction. Mechanic and electro-hydraulic power steering. 6. Hydrostatic drive of upper construction of mobile machinery. Proportional valves for mobile equipment. Compensation of load with pressure weights. 7. Energy saving of drives. Load-sensing systems with open center and closed center. 8. Hydraulic presses. Cordless actuators. Applications in presses. 9. Electro-hydraulic actuators of robots and manipulators. Speed and positional servodrives in robots, manipulators, machine tools, aircraft, military equipment. 10. Synchronous operation of two or more motors. Application: water works, stage equipment, lifting equipment. 11. Hydraulics in the mines. Specific requirements for emulsion and water hydraulics. 12. Hydraulics in steelworks. Electro-hydraulic automatic gauge control on rolling mills. 13. Hydraulics in cars: hydraulic brake, hydraulic transmissions, hydraulic shock absorbers, anti-slip ABS systems. 14. Hydraulic equipment operating in potentially explosive atmospheres. Intrinsically safe controls and drives. Syllabus of practicals: 1. Repeat: Graphical symbols for hydraulic components. Basic hydraulic circuits. 2. Properties of hydraulic circuits working fluids: viscosity, compressibility. Design a working fluid or working the machine. 3. Design and calculation of the hydraulic circuit with consideration of pressure losses and efficiency. 4. Torque characteristics of actuators, mechanisms, choice of working point. 5. Design and calculation of the hydrostatic transmission. 6. Multi motor drives. Synchronous operation of two or more motors. 7. Program No. 1: Design of driving mechanisms of mobile machines. 8. Program No. 2: Design of hydrostatic drive of upper construction of mobile machinery. 9. Energy-efficient regulatory system with LS oil delivering. Design, calculation. 10. Energy-efficient regulatory system with LS system oil delivering. 11. Task No. 3: Hydrostatic drive with accumulators. 12. Circuit design with built-in valves. 13. The dynamics of hydraulic drive system - the machine. 14. Position servo control for rolling mill quarto. Credit.

Conditions for subject completion

Full-time form (validity from: 2013/2014 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Graded exercises evaluation Graded credit 100  51
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2019/2020 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2019/2020 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2018/2019 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2018/2019 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2017/2018 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2017/2018 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2015/2016 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2015/2016 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2014/2015 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2014/2015 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (3909T001) Design and Process Engineering (16) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2013/2014 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner