330-0317/04 – Vibration Diagnostics (VIBDI)
| Gurantor department | Department of Applied Mechanics | Credits | 4 |
| Subject guarantor | doc. Ing. Michal Šofer, Ph.D. | Subject version guarantor | doc. Ing. Michal Šofer, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 3 | Semester | summer |
| | Study language | English |
| Year of introduction | 2019/2020 | Year of cancellation | |
| Intended for the faculties | FS | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
The student would know how chosen machine defects could be indicated in the vibration spectrum. The students would be able to measure spectrum, analyze it, and on the base of this analysis, they would be able to identify the conditions of machines and identify common types of defects.In case of a defect, they would be able to assess the severity of defect and decide about appropriate action (planned shutdown, instantaneous shutdown, etc.) and about the necessary procedures (replacement of bearings, balance, or the alignment of the machine, etc.). Student would be able to apply the method of operating balancing in one plane.
Teaching methods
Lectures
Experimental work in labs
Terrain work
Summary
This subject deals with monitoring and vibration diagnostic of rotating machinery. Students will become acquaintant with instrumentation and software used in condition monitoring and vibration diagnostics and with basics of signal processing. The main part of this module is focused on description of the common failures, which can occur on rotating machinery and on their identification from the measured vibration spectra or time history.
Compulsory literature:
Recommended literature:
[1] RANDAL, R. B. Frequency Analysis, Bruel and Kjaer. 1987. 344 s.
Way of continuous check of knowledge in the course of semester
Laboratory report from each measurement proofs the understanding of the principle and the methods used.
E-learning
Other requirements
Basic knowledge of Dynamics I and Technical Vibrations.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Technical diagnostics, the object and means.
2. Vibration diagnostics of machines with rotating parts (shafts) and evaluation according the ISO standard.
3. Vibration sensors: accelerometers, proximity probes (principle, connection to machine, the features).
4. Frequency analysis, FFT (Fourier fast transformation), DFT. Setting of data collector.
5. Machine fault diagnostics using spectra and trend analysis, common machine faults, field balancing.
6. Measurement of machine part eigenfrequencies.
7. Diagnostics of roling bearings and rotor on fluid bearings.
8. Operating deflection shapes.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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