338-0323/01 – 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 graduateRequirementCompulsory
Year3Semestersummer
Study languageCzech
Year of introduction2009/2010Year of cancellation2012/2013
Intended for the facultiesFSIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
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 2+3
Combined Credit and Examination 16+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

Lectures
Tutorials
Experimental work in labs
Other activities

Summary

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

1 projekt 3 laboratorní úlohy

E-learning

Další požadavky na studenta

There are no other requirements for student.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

The program of lectures Week lectures 1 Meaning and tasks of technical diagnostics. Terminology. Diagnostic parameters. Technical Diagnostics Methods: parametric methods diagnostics. 2 Methods of technical diagnostics: Vibrodiagnostics, measurement and evaluation of vibration, vibroacoustic diagnostics. Thermodynamic method. 3 The methods of technical diagnosis: tribotechnical - tribodiagnostics degradation of lubricating oils, machinery wear tribodiagnostics systems. 4 Reliability of hydraulic components and equipment. 5 Technical Means of diagnosis: distribution. Sensors variables: requirements metrological characteristics. Calibration sensors. 6 sensors diagnostic variables: pressure, flow, temperature, runway, speed. 7 Sensors seven diagnostic variables: speed, strength, torque, speed, noise and vibration. Multi-sensor and evaluation systems. 8 Diagnosis of hydro, rotary motors, linear motors, compressors, pneumomotorů, pressure valves, switchboards and other flow elements. 9 Simulation of operation. Diagnostics of hydraulic systems. Monitoring machines. Exercise program + individual working of students Week Refill exercises and seminars 1 Examples of a means of technical diagnostics in the laboratory department. Introduction to measurement and evaluation system Hydrotechnik M 5000. 2 Diagnosis of two rotary hydraulic motor and switchgear. Measurement of cavitation in hydraulic variables measuring system M Hydrotechnik 5000. 3 Programme 1: Diagnosis of a hydraulic drive with hydraulic rotary measuring system M Hydrotechnik 5000. The program can receive up to 10 points. 4 Programme 2: Project technical diagnostics of the system. The program can receive up to 10 points. 5 Diagnostics working fluids. Measurement of modulus of liquids. Program No. 3: Measurement of fluid viscosity programmable Brookfield rotational viscometer. The program can receive up to 8 points. 6 Agenda No. 4: Calibration of pressure sensor piston gauge. Calibration indukčnostního encoder. The program can receive up to 7 points. 7 Examples of computing reliability indexes. 8 Measurement of vibration. 9 Measurement of ultrasonic distance sensor. Credit. Exam questions: 1 Meaning and tasks of technical diagnostics. Terminology. 2 Basic methods of technical diagnostics. Parametric methods of technical diagnostics. Diagnostic parameters. 3 Vibrodiagnostics. Vibroacoustic diagnostics. 4 Tribotechnical diagnosis - tribodiagnostics lubricant degradation oil. 5 Tribotechnical diagnosis - tribodiagnostics wear mechanical systems. 6 Means of technical diagnostics - distribution. 7 Sensors seven variables: the requirements of the metrological characteristics. 8 Basic physical principles of sensors. 9 Encoder, speed. 10 Pressure and power. 11 Flow and speed. 12 torque sensors. Temperature sensors. 13 Noise and vibration sensors. 14 Multi-sensors and measuring instruments. 15 Calibration of pressure sensors, and flow path. 16 Simulation of operation - Pressure and flow jump. 17 Diagnosis of hydraulic pumps: a circuit diagram, measuring principle characteristics. 18 Diagnosis of rotary motors: a circuit diagram, measuring principle characteristics. 19 Diagnosis of linear hydraulic motor: a circuit diagram, principle measurement characteristics. 20 Diagnosis compressor circuit diagram, measuring principle characteristics. 21 Diagnosis pneumomotoru rotation: a circuit diagram, measuring principle characteristics. 22 Diagnosis of pressure valves: a circuit diagram, measuring principle characteristics. 23 Diagnosis of distributors and one-way valve: a circuit diagram, measuring principle characteristics. 24 Thermodynamic methods for measuring efficiency: principles, basic relations. 25 Track machine.

Conditions for subject completion

Combined form (validity from: 2009/2010 Summer semester, validity until: 2010/2011 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 35  25
        Examination Examination 65  20
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2011/2012 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2011/2012 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan
2010/2011 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2010/2011 (B2341) Engineering (2302R007) Hydraulics and Pneumatics K Czech Ostrava 3 Compulsory study plan
2009/2010 (B2341) Engineering (2302R007) Hydraulics and Pneumatics P Czech Ostrava 3 Compulsory study plan
2009/2010 (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