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Course info
KME / EXM2
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Course description
Department/Unit / Abbreviation
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KME
/
EXM2
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Academic Year
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2023/2024
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Academic Year
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2023/2024
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Title
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Experimental Mechanics
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Form of course completion
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Exam
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Form of course completion
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Exam
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Accredited / Credits
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Yes,
5
Cred.
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Type of completion
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Oral
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Type of completion
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Oral
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Time requirements
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Lecture
2
[Hours/Week]
Tutorial
2
[Hours/Week]
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Course credit prior to examination
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Yes
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Course credit prior to examination
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Yes
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Automatic acceptance of credit before examination
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No
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Included in study average
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YES
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Language of instruction
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Czech, English
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Occ/max
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|
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Automatic acceptance of credit before examination
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No
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Summer semester
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0 / -
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9 / -
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2 / -
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Included in study average
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YES
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Winter semester
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0 / -
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0 / -
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0 / -
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Repeated registration
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NO
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Repeated registration
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NO
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Timetable
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Yes
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Semester taught
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Summer semester
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Semester taught
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Summer semester
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Minimum (B + C) students
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10
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Optional course |
Yes
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Optional course
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Yes
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Language of instruction
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Czech, English
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Internship duration
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0
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No. of hours of on-premise lessons |
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Evaluation scale |
1|2|3|4 |
Periodicity |
každý rok
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Evaluation scale for credit before examination |
S|N |
Periodicita upřesnění |
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Fundamental theoretical course |
No
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Fundamental course |
Yes
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Fundamental theoretical course |
No
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Evaluation scale |
1|2|3|4 |
Evaluation scale for credit before examination |
S|N |
Substituted course
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KME/EXM
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Preclusive courses
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N/A
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Prerequisite courses
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N/A
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Informally recommended courses
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N/A
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Courses depending on this Course
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N/A
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Histogram of students' grades over the years:
Graphic PNG
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XLS
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Course objectives:
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Student understands dimensional analysis and similitude, gets knowledge about analysis at real structures and models, about methods for static and dynamic measurements, learns to process experimental data to evaluate them.
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Requirements on student
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Requirements for course confirmation: laboratory measurement attendance, test from selected parts of the course.
Oral examination with written preparation.
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Content
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1.Itroduction, course goals, course requirements. Fundamentals of theory of experiment: experiment goal and realisation, experimental chain. Basic relations of linear theory of elasticity: Hooke`s law for plane stress state, Mohr`s circle for strain.
2.Experimental stress analysis: goals, experimental methods for determining strain and stress in bodies. Mechanical, string, pneumatic, electric resistance, semiconductor gauges. Electric resistance method: basic equation, gauge construction and types, measuring small changes of resistance.
3.Electric resistance gauge properties: linearity, hysteresis, gauge factor, transverse sensitivity, relaxation, gauge calibration. Effects on measuring: temperature effect - temperature compensation, moisture effect, wiring effect.
4.Wheatstone bridge circuit: equilibrium condition, balance and deviation measuring methods, querter-, half- and full bridge. Stress determination from measured strain - unidirectional stress, plane stress with known and unknown principal stress directions - 2 grids and 3 grids gauges.
5.Dimensional analysis and fundamentals of similitude.
6.Objects, linear systems, mechanical system with 1 degree of freedom. Bode`s diagrams.
7.Excitation - static and dynamic loading. Harmonic process - 1D, 2D. Harmonic excitation - mechanical and electrical vibrators.
8.Measuring units. Vibration sensors - absolute, relative. Deflection, velocity, acceleration sensors.
9.Numerical treatment of ergodic processes. Spectral power density, data and spectral windows. Coherence function.
10.Experimental modal analysis.
11.Intensity measuring.
12.Identification methods. Direct and indirect methods. Industrial visit.
13.Experimental analysis of civil structures.
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Activities
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Fields of study
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Studentům je k dispozici kurz v Google Classroom se všemi podstatnými informacemi a elektronickými materiály.
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Guarantors and lecturers
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Literature
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Basic:
Macura, P., Fojtík, F. EXPERIMENTÁLNÍ METODY V MECHANICE. Ostrava, 2013. ISBN 978-80-248-3018-6.
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Basic:
Klement, Jiří; Plánička, František; Vlk, Miloš. Modelová podobnost, elektrická odporová tenzometrie, experimentální určování zbytkových napětí, vyhodnocení experimentálně získaných dat. Plzeň : Západočeská univerzita, 2004.
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Recommended:
Sciammarella, Cesar A.; Sciammarella, Federico M. Experimental mechanics of solids Cesar A. Sciammarella, Federico M. Sciammarella. Hoboken : John Wiley & Sons, 2012. ISBN 978-0-470-68953-0.
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Recommended:
Brynich, J. Experimentální dynamika.
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Recommended:
Miláček, S. Modální analýza mechanických kmitů. Praha : ČVUT, 1992. ISBN 80-01-00872-X.
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On-line library catalogues
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Time requirements
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All forms of study
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Activities
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Time requirements for activity [h]
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Graduate study programme term essay (40-50)
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40
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Preparation for an examination (30-60)
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40
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Contact hours
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52
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Total
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132
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Prerequisites
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Knowledge - students are expected to possess the following knowledge before the course commences to finish it successfully: |
znát mechaniku tuhých a poddajných těles v rozsahu základních předmětů |
znát základní fyzikální principy |
znát základy matematické analýzy |
znát základy statistiky a počtu pravděpodobnosti |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
řešit jednoduché problémy kmitání |
vyhodnotit napjatost ze znalosti deformací |
vyhodnotit stav napětí a deformací na základě zatížení |
Competences - students are expected to possess the following competences before the course commences to finish it successfully: |
N/A |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
aplikovat vhodné metody pro experimentální měření |
aplikovat znalosti k vyšetřování konstrukcí na modelech |
aplikuovat diskrétní Fourierovu transformaci k výpočtu dynamických odezev mechanických soustav |
obeznámit se s počítačovými měřicími systémy |
pochopit princip dimensionální analýzy a modelové podobnosti |
Skills - skills resulting from the course: |
provádět měření periodických vibrací počítačem a neperiodických vibrací analyzátorem |
provádět statistickou analýzu experimentálních dat |
zjišťovat experimentálně modální a kmitočtové charakteristiky |
zvládnout v požadovaném rozsahu elektrickou odporovou tenzometrii |
Competences - competences resulting from the course: |
N/A |
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Assessment methods
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Knowledge - knowledge achieved by taking this course are verified by the following means: |
Oral exam |
Skills - skills achieved by taking this course are verified by the following means: |
Individual presentation at a seminar |
Competences - competence achieved by taking this course are verified by the following means: |
Oral exam |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Lecture with visual aids |
Self-study of literature |
Skills - the following training methods are used to achieve the required skills: |
Individual study |
Laboratory work |
Practicum |
Competences - the following training methods are used to achieve the required competences: |
Task-based study method |
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