Course detail

Reliability Theory

FSI-XTSAcad. year: 2009/2010

The course familiarises students with the procedures and methods used for experimental solution of tasks in the field of technical diagnostics. It enables students to apply them to practical situations. It explains basic methods of measuring mechanical quantities and defines the structure of the measuring and control chain. The course deals with the analysis of analog and digital signals in the time and the frequency domain too. A part of the course is also devoted to the measurement of kinematic quantities, forces, torques, pressure and noise. It defines the basic concepts and categories of safety and technical diagnostics. Special emphasis is placed on the tribodiagnostics and vibroacoustic diagnostics, especially on the methods of processing diagnostic signals in the time and the frequency domain.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Miloš Hammer, CSc.

Department

Institute of Production Machines, Systems and Robotics (ÚVSSR)

Learning outcomes of the course unit

Students will have an overview of contemporary possibilities of experimental detection of some mechanical quantities needed for an assessment of failure-free operation of machines and their parts. They will be provided with fundamental practical knowledge of and experience with these problems. They will be able to formulate real requests for these activities and will have a grasp of evaluation and interpretation of the results.

Prerequisites

Basic knowledge of mathematics, numerical mathematics, statistics and probability, physics, mechanics and electrical engineering.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Course-unit credit is awarded on the following conditions: - active participation in the seminars, - good results of elaborated laboratory exercises, - solution of additional tasks in case of longer excusable absence. Examination – combined (written and oral). In the written part the student has to prove knowledge of basic terms, important principles and their application; the oral part takes the form of a discussion over the written part and records from laboratory exercises.

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

Students will acquire theoretical and practical knowledge of and experience with contemporary methods intended for experimental solution of problems.

Specification of controlled education, way of implementation and compensation for absences

Attendance at practicals is required. One absence can be compensated for by attending a seminar with another study group in the same week, or by elaboration of substitute tasks. Longer absence may be compensated for by special tasks according to instructions of the tutor.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Barlow, F.E., Proshan, F., Hunter, L.C.:: Mathematical Theory of Reliability,
Davidson, J.:: The Reliability of Mechanical Systems,
Calabro, S.T.:: Základy spolehlivosti a jejich využití v praxi,

Recommended reading

Liška, M., Sládek, Z.: Spolehlivost a technická diagnostika, Skriptum VUT Brno 1989
Janíček, P.: Technický experiment, Skriptum VUT Brno 1989
Tůma, J.: Zpracování signálů získaných z mechanických systémů..., Sdělovací technika Praha 1997
Mišun, V.: Vibrace a hluk, Skriptum VUT Brno 1998

Classification of course in study plans

  • Programme M2A-P Master's

    branch M-MŘJ , 1. year of study, summer semester, compulsory
    branch M-MŘJ , 1. year of study, summer semester, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

doc. Ing. Ivan Mazůrek, CSc.

Syllabus

1. Reliability of machine systems
2. Fundamentals of technical diagnostics
3. Measurement of non-electric quantities
4. Processing of a measured signal
5. A/D converter
6. Time domain analyses
7. Frequency domain analyses
8. Vibroacoustic diagnostics
9. Noise as a diagnostic quantity
10. Tribodiagnostic of vehicle components
11. CAT/CAME system
12. On-board diagnostic of vehicles
13. Software for measuring systems
13a. Electromagnetic compatibility and reliability

Computer-assisted exercise

26 hours, compulsory

Teacher / Lecturer

Ing. Jakub Roupec, Ph.D.
Ing. Zbyněk Strecker, Ph.D.

Syllabus

1. Workplace safety in the laboratory, demonstration of selected laboratory tests
2. Demonstration of selected laboratory tests
3. Transducers of physical quantities
4. Calibration of accelerometers and microphones
5. Basic properties of a sampling signal, FFT
6. DFT, quantisation, modelling with MathCad
7. Measurement system software – selected representatives
8. Introduction to LabVIEW software
9. Crash test - impact energy calculation
10. Crash test - experimental verification
11. Acoustic measuring in a free field, colour of sound
12. Acoustic measuring - colour of sound
13. On-board diagnostics
13a. Credit test