337-0316/01 – Basics of Experimental Mechanics (ZAKEM)
| Gurantor department | Department of Mechanics | Credits | 4 |
| Subject guarantor | Mgr.Ing. Alena Bilošová, Ph.D. | Subject version guarantor | Mgr.Ing. Alena Bilošová, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 3 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2004/2005 | Year of cancellation | 2011/2012 |
| Intended for the faculties | FS | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Student will be able to orientate himself in the branch of experimental mechanics. He will be able to carry out electrical measurement of mechanical quantities - forces, strains, displacements, velocities and acceleration of vibration. He will be able to identify the type of the task and use the appropriate type of transducer in appropriate way. He will be familiar with the bases of processing of the measured signals and with operating measurement analyzers.
Teaching methods
Lectures
Experimental work in labs
Terrain work
Summary
The subject deals with problematics of measurement and experiment. Main topics are electrical measurements of mechanical quantities, analogue and digital processing of the measured signal, principles of strain gauges measurements and fotoelasticimetry. Students will get acquainted with basic constructs and quantities in experimental mechanics, with various types of transducers and with the ways of measuring mechanical quantities.
Compulsory literature:
1. Randall, R.B.: Frequency analysis, Bruel&Kjaer, Denmark, 1987
2. Eshleman, R.L.: Basic Machinery Vibrations, VIPress, Illinois, 1999
Recommended literature:
Way of continuous check of knowledge in the course of semester
During semestr, students elaborate measurement protocols. Correct elaboration of a protocol serves as evidence of encompassment of the problematics.
E-learning
Other requirements
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Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Part mechanics:
Functioning in laboratory, safety rules
Introduction to the problematics of experiment, measurement and testing
Electrical measurements of mechanical quantities
Mechanical vibration transducers, equipment for measuring and analysis of vibrations
Analog and digital processing of the measured signal
Frequency analysis and FFT
Optimal sampling frequency, aliasing, weighting windows
Part Mechanics of materials:
Introduction to photoelasticimetry - basic knowledge from optics, light polarisation, permanent and temporary birefringence, formation of isoclines and isochromatic lines, optical senzitivity constant od material
Plane photoelasticimetry - transmission polariscope with linear and circle polarized light, construction of isostats, evaluation of stress on unloaded surface, separation of principal stresses by measuring change in model's thickness
Basics of tensiometry - types of strain gauges, electric resistance strain gauges, bridge connection of strain gauges
Evaluation of strain from tensiometrical measurements - zero and deviation measuring method, evaluation of strain-gauge cross and rosette
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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