Experimental Methods (FSI-QEM)

Academic year 2022/2023
Supervisor: prof. Ing. Josef Štětina, Ph.D.  
Supervising institute: ÚADI all courses guaranted by this institute
Teaching language: Czech
Aims of the course unit:
The aim of the course is to acquaint students with measurement methods and approaches to experimental problem solving with a focus on internal combustion engines and motor vehicles. It is essential to obtain a basic idea of the complexity of experimental work and current technical possibilities for their solution.
Learning outcomes and competences:
The graduate of the course will acquire theoretical knowledge and practical experience with experimental work with an emphasis on the use of computers in measuring and processing the experiment is able to simplify problems to choose the solution procedure and to orientate in the selection of appropriate measuring techniques.
Prerequisites:

Basic knowledge of mathematics, physics, mechanics and electrical engineering at the level of a bachelor's degree in engineering.
Course contents:

The course "Experimental Methods" introduces students to the procedures and methods used in experimental problem solving in the Automotive and Traffic Engineering program so that they are able to apply them in practice. It explains the basics of modern methods for measuring mechanical quantities and defines the structure of the measurement and control instrumentation chain. Measures kinematic quantities, forces, moments, pressure, temperature and noise.
Teaching methods and criteria:
The course is taught through lectures explaining the basic principles and theory of the discipline. Teaching is suplemented by practical laboratory work.
Assesment methods and criteria linked to learning outcomes:

Assessment methods and criteria linked to learning outcomes: Conditions for awarding the course-unit credit: active participation in seminars, elaboration of seminars, and passing a credit test. Exam: the exam examines the acquisition of knowledge gained in lectures, is focused primarily on the application of this knowledge to measurement and instrumentation, the exam is a written test and the possibility of oral verification of knowledge, up to 50% of the evaluation is the classification of laboratory exercises.
Controlled participation in lessons:
Attendance at the exercise is mandatory. Absence is solved with the teacher entering a substitute assignment.
Type of course unit:
    Lecture  13 × 2 hrs. optionally                  
    Laboratory exercise  13 × 2 hrs. compulsory                  
Course curriculum:
    Lecture

  1. Basics of the theory of experiment, concepts and methods of work. Prescriptions for measurements. Measurement errors and uncertainties.

  2. Measurement of electrical and non-electrical quantities. Measurement chain. Sensors and their characteristics. Computerised measurement systems. Digitisation, sampling rates. Measuring cards, modules and instruments.

  3. Processing of measurement results.

  4. Measurement of temperatures, pressures, flow and heat fluxes.

  5. Strain gauges, strain gauge signal evaluation methods, application of strain gauges to force and pressure transducers.

  6. Strain gauges, strain gauge signal evaluation methods, application of strain gauges to force and pressure transducers.

  7. Noise, vibration and speed measurements. Acoustic measurements in automotive development.

  8. Identification of noise sources.

  9. Introduction to experimental modal analysis.

  10. On-board measurement issues, Global Positioning System (GPS).
    Driving tests.

  11. Problems of measuring internal combustion engines on engine test benches.

  12. Measurement issues on cylinder test benches, emission measurements.

  13. On-board diagnostics of vehicles, vehicle data networks, On Board Diagnostic, CAN bus based communication.
    Laboratory exercise

  1. Laboratory safety, processing of measurement results in MATLAB.

  2. Data processing. Measurement chain.

  3. Measurement of temperatures, pressures, flow rates on the combustion engine.

  4. Measurement of forces, speed, engine and cylinder dynamometer.

  5. Tensometry 1

  6. Tensometry 2

  7. Modal analysis, FFT.

  8. Analysis of mechanical vibration of engine as a function of operating speed.

  9. Acoustic measurements. Measurement of the acoustic power of a noise source.

  10. Driving tests, GPS.

  11. Brake, shock absorber and geometry measurements.

  12. On-board diagnostics. Datalogging in automotive technology.

  13. Credit test, evaluation of protocols.
Literature - fundamental:
1. VENKATESHAN, S. P. Mechanical Measurements. 2. London: John Wiley&Sons, 2015. ISBN 978-11-1911-556-4.
2. MCBEATH, Simon. Competition car data logging. 2nd ed. Newbury Park, Calif.: Haynes North America, 2008. ISBN 978-184-4255-658.
3. CROCKER, Malcolm J. Handbook of noise and vibration control. Hoboken: Wiley, 2007, xxiv, 1569 s. : il. ISBN 978-0-471-39599-7.
Literature - recommended:
1. KUTZ, Myer. Handbook of measurement in science and engineering. Hoboken, New Jersey: Wiley, 2013. ISBN 978-0-470-40477-5.
2. TŮMA, Jiří. Vehicle gearbox noise and vibration: measurement, signal analysis, signal processing and noise reduction measures. Chichster: Wiley, 2014, xiv, 243 s. : il. ISBN 978-1-118-35941-9.
3. PAVELEK, Milan a Josef ŠTĚTINA. Experimentální metody v technice prostředí. 3. vyd. Brno: Akademické nakladatelství CERM, 2007, 215 s. ISBN 978-80-214-3426-4.
4. MIŠUN, Vojtěch. Vibrace a hluk. Vyd. 2. / v Akademickém nakladatelství CERM 1. vyd. Brno: Akademické nakladatelství CERM, 2005, 177 s. : il. ISBN 80-214-3060-5.
5. MARTYR, A. J. a M. A. PLINT. Engine Testing Theory and Practice. 3. Oxford: Elsevier, 2007. ISBN 978-0-7506-8439-2.
The study programmes with the given course:
Programme Study form Branch Spec. Final classification   Course-unit credits     Obligation     Level     Year     Semester  
CŽV full-time study CZV Bases of Mechanical Engineering -- Cr,Ex 6 Compulsory 1 1 S
N-ADI-P full-time study --- no specialisation -- Cr,Ex 6 Compulsory 2 1 S