338-0323/02 – Technical Diagnostics and Reliability of Hydraulic Mechanisms (TDaSHM)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits5
Subject guarantordoc. Dr. Ing. Lumír HružíkSubject version guarantordoc. Dr. Ing. Lumír Hružík
Study levelundergraduate or graduate
Study languageCzech
Year of introduction2012/2013Year of cancellation
Intended for the facultiesFSIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
BUR262 Ing. Adam Bureček, Ph.D.
DVO31 Ing. Lukáš Dvořák, Ph.D.
HRU38 doc. Dr. Ing. Lumír Hružík
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+2
Combined Credit and Examination 8+4

Subject aims expressed by acquired skills and competences

To acquaint students with the basic concepts of technical diagnostics and basic diagnostic methods. To acquaint students with problems of reliability of hydraulic components and equipment. To acquaint students with the sensors and measuring instruments in the technical diagnostics of hydraulic components and equipment and the problems of technical diagnostics of hydraulic components and equipment. To acquire experience in practical measurement and diagnostics of hydraulic components and equipment. To learn to work with measurement and diagnostic system M 5000 Hydrotechnik.

Teaching methods

Experimental work in labs
Other activities


Study of the subject will provide knowledge from field of the diagnostics of hydraulic components and equipment with a sight on free of disassembly diagnostics. Parametric, vibrodiagnostic, tribotechnical and thermodynamic diagnostic methods of technical diagnostics are discussed. There are considered problems of reliability of hydraulic components and systems in the subject. There are described the instruments of technical diagnostics in terms of subject. Physical principles and metrological characteristics of sensors including the requirements on the sensors are given. There are described the sensors of diagnostic variables: pressure, flow, temperature, trajectory, speed, acceleration, force, moment, revolutions, noise and vibration. The basic diagnostic measurements of hydraulic and pneumatic components (hydro-generators, rotary hydro-motors, linear hydro-motors, compressors, pneumomotors, pressure valves, distributors and other flow elements) and systems are discussed. The subject also deals with operation simulation and monitoring of machines.

Compulsory literature:

[1] EXNER, H. et al. Basic Principles and Components of Fluid Technology. Lohr am Main, Germany: Rexroth AG., 1991. 344 p. ISBN 3-8023-0266-4. [2] GOLDSTEIN, R. J. Fluid Mechanics Measurements. Washington : Hemisphere Publishing Corporation. 1983. 647 p. ISBN 0-89116-244-5.

Recommended literature:

[1] GÖTZ, W. Hydraulics. Theory and Applications. Ditzingen, Germany: OMEGON, 1998. 291 s. ISBN 3-980-5925-3-7. [2] HEHN, H. et al. Fluid Power Troubleshooting. New York : Marcel Dekker. 1995. 647 p. ISBN 0-8247-9275-0.

Way of continuous check of knowledge in the course of semester

Credit: max 35, min 18 points – 5 measurement protocols Exam: oral - 2 questions (50 points) + defense of protocols (15 points)


Další požadavky na studenta

There are no additional requirements for the student.


Subject has no prerequisities.


Subject has no co-requisities.

Subject syllabus:

1 Significance of technical diagnostics. Diagnostic parameters. Methods of technical diagnostics: parametric methods. Tribodiagnostics. 2 Methods of technical diagnostics: Vibrodiagnostics, vibroacoustic diagnostics. Thermodynamic method. 3 Reliability of hydraulic elements and equipment. Reliability evaluation. Reliability indicators R(t), F(t), f(t), lambda(t). 4 Failures and their classification. Trouble-free operation of systems. Backup. Standby and means of achieving of high standby of technical means. 5 Reliability tests. Accelerated tests with increased parameters. Accelerated cycling test. Accelerated test with artificial liquid contamination. 6 Means of technical diagnostics: distribution. Sensors of quantities: basic principles, requirements, metrological characteristics. Sensors of diagnostic quantities: pressure, flow. 7 Sensors of diagnostic quantities: temperature, trajectory, velocity, acceleration, force, torque. 8 Sensors of speed, noise and vibration. Calibration of sensors. 9 Diagnostics of hydraulic pumps, rotary and linear hydraulic motors, pressure valves, directional valves and other flow elements. Diagnostics of hydraulic systems.

Conditions for subject completion

Conditions for completion are defined only for particular subject version and form of study

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2012/2013 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2012/2013 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner