338-0936/04 – Servomechanisms (SMe)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits10
Subject guarantordoc. Ing. Martin Vašina, Ph.D.Subject version guarantordoc. Ing. Martin Vašina, Ph.D.
Study levelpostgraduateRequirementChoice-compulsory type B
YearSemesterwinter + summer
Study languageCzech
Year of introduction2019/2020Year of cancellation
Intended for the facultiesFSIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
HRU38 doc. Dr. Ing. Lumír Hružík
VAS024 doc. Ing. Martin Vašina, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 25+0
Part-time Examination 25+0

Subject aims expressed by acquired skills and competences

The goal of the subject is to obtain deeper knowledge of servo mechanisms compared to the engineering study. Besides the analysing the dynamic characteristics of servo mechanisms, there are studied synthesis methods of control circuit of servo mechanisms, mainly with regard to the dynamic stability of the control circuit. There is studied the problematics of passive resistance of hydraulic motors at low speed (so-called stick-slip) in the field of electro-hydraulic servo mechanisms.

Teaching methods

Lectures
Individual consultations
Project work

Summary

The Ph.D. student is acquainted in the subject “servo mechanisms” with the definition, composition and types of servo mechanisms, and focuses in detail on electrohydraulic servo mechanisms. He will deal in detail with construction, function, static characteristics and dynamic properties of individual members of electrohydraulic servo mechanisms: hydraulic motors, servo valves, sensors, controllers. He is acquainted in the area of dynamics of servomechanisms in detail with the ways of describing dynamic behaviour of members of servo mechanisms, with simulation programs focused on simulation of dynamic behaviour of servo mechanisms, with synthesis methods of speed and position servo mechanisms, using computer methods to solve problems, with dynamic stability of control systems of servo mechanisms and possibilities of increasing the dynamic stability of servo mechanisms.

Compulsory literature:

1. EWALD, R. et al. Proportional and Servo-valve Technology. Lohr am Main, Germany: Bosch Rexroth AG, 2003. 300 p. 2. Electrohydraulic system engineering. Cleveland: Parker Hannifin Corporation, 2007. 149 p. 3. DORF, R. C.; BISHOP, H. R. Modern Control Systems. New York: Addison-Wesley Publishing Company, 2008. 1018 p. ISBN 978-0-13-245192-5.

Recommended literature:

1. EXNER, H. et al. Hydraulics. The Hydraulic Trainer, Volume 1. Ditzingen : Omegon Fachliteratur, 2002. 326 p. ISBN 3-933698-32-4. 2. NOACK, S. Hydraulics in Mobile Equipment. Ditzingen, Germany: Bosch Rexroth AG, 2001. 202 p. 3. YOUNKIN, G. W. Industrial Servo Control Systems: Fundamentals and Applications. New York, USA: Marcel Dekker, 2003. 375 p. ISBN 0-8247-0836-9.

Way of continuous check of knowledge in the course of semester

Individual consultations and project processing. Oral exam.

E-learning

Other requirements

Other requirements for students are not.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Definition, types of servo mechanisms, typical characters. 2. Electrohydraulic servomechanisms. General block diagram. 3. Components of servo mechanisms: structure, function, static characteristics: - hydraulic pumps, - hydraulic motors, - control spool, - servo valves, - sensors, - regulators. 4. Dynamic properties of members of servo mechanisms: - motion equations of members of servo mechanisms, - dynamic characteristics of members of servo mechanisms, - solution of a system of motion equations. 5. Stability of servo mechanisms. 6. Stabilization of speed servo mechanisms. 7. Stabilization of position servo mechanisms. 8. Simulation of dynamic behaviour of servo mechanisms

Conditions for subject completion

Full-time form (validity from: 2019/2020 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2021/2022 (P0715D270011) Construction of Production Machines and Equipment K Czech Ostrava Choice-compulsory type B study plan
2021/2022 (P0715D270011) Construction of Production Machines and Equipment P Czech Ostrava Choice-compulsory type B study plan
2021/2022 (P0714D270003) Robotics P Czech Ostrava Choice-compulsory type B study plan
2021/2022 (P0714D270003) Robotics K Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0714D270003) Robotics P Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0714D270003) Robotics K Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0715D270011) Construction of Production Machines and Equipment K Czech Ostrava Choice-compulsory type B study plan
2020/2021 (P0715D270011) Construction of Production Machines and Equipment P Czech Ostrava Choice-compulsory type B study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner