Conference
Spatial aliasing and false detection of standing waves in experimental determination of dispersion relationship by correlation method
| العنوان: | Spatial aliasing and false detection of standing waves in experimental determination of dispersion relationship by correlation method |
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| المؤلفون: | Sinđelić, V., Ciric-Kostic, Snezana, Radičević, Branko, Šoškić, Zlatan |
| المساهمون: | Cvetković, Dragan, Marinca, Vasile, Herisanu, Nicolae, Praščević, Momir, Mihajlov, Darko |
| بيانات النشر: | Faculty of occupational safety, Unversity of Niš |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | spatial aliasing, false detection, dispersion relationship, correlation method, standing waves |
| الوصف: | N&V 2022 ; The experimental determination of a dispersion relation by measurements of wave properties in different points in space meets various challenges due to the spatial aliasing, which is a consequence of description of a continuous wave by a discrete set of measurement points. The paper presents an analysis of the phenomenon of false detection of standing waves during experimental determination of dispersion relationship of flexural waves in beams by correlation method. The false detection of standing waves, manifested as zero group velocity of the waves that does not correspond to a real resonance, is a consequence of equidistant spacing of measurement points in experimental setup, and may be avoided by different positioning of measurement points in space. The results of the analysis are verified by comparison between the results of experimental setups with equidistant measurement points and measurement points with distances to excitation point proportional to prime numbers. ; The Ministry of Education, Science and Technological Development of the Republic of Serbia - contract record number: 451-03-68/2022-14/200108 ; https://www.znrfak.ni.ac.rs/ ; Published |
| نوع الوثيقة: | conference object |
| وصف الملف: | application/pdf |
| اللغة: | English |
| ردمك: | 978-86-6093-111-7 86-6093-111-4 |
| Relation: | 27th International Conference Noise and Vibration - N&V 2022; https://scidar.kg.ac.rs/handle/123456789/20407 |
| الاتاحة: | https://scidar.kg.ac.rs/handle/123456789/20407 |
| رقم الانضمام: | edsbas.CCF8251A |
| قاعدة البيانات: | BASE |
| ردمك: | 9788660931117 8660931114 |
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