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 elements and systems and applies them to the hydraulic systems of working and production machines. Students will learn the function of selected working and production machines and will be able to design a hydraulic drive or transmission. They can analyze the characteristics and behavior of the machine and drive and design or modify its control according to the requirements of the assignment. They will get acquainted with specific problems of individual machines and their drives, such as mobile machinery chassis drives, hydrostatic transmissions of mobile machines, drives of mobile working machines superstructure, energy-saving hydrostatic systems, accumulator systems, emulsion and water hydraulics etc.

Teaching methods

Lectures
Tutorials
Project work

Summary

In the course Hydraulics of Working and Production Machinesthe students will get acquainted with hydraulic systems of mobile working machines and with selected special problems of hydraulic systems of production machines. These include, for example, mobile machinery chassis drives, mobile machinery hydrostatic transmissions, mobile working machine superstructure drives, energy-saving hydrostatic systems, accumulator systems, emulsion and water hydraulics, etc.

Compulsory literature:

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

Recommended literature:

NOACK, S. Hydraulics in Mobile Equipment. Ditzingen: Rexroth Bosch Group + OMEGON, 2001. 202 s. ISBN 0-7680-0886-7. 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

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