Experimental and numerical identification of structural modes for engineering education

Aleksandar Borkovic, Valentina Golubović-Bugarski , Dragan D. Milašinović , Ognjen Mijatović, Manuel Desančić

Research output: Contribution to journalArticlepeer-review


Development of simple classroom demonstration device and software for visualization of structural normal modes is presented. Device is made of parts of old speaker, controlled with personal computer, where the harmonic motion of solenoid is used as an excitation for beam and plate models. Simple code for finite element free vibration analysis of plates is written in Wolfram Mathematica. Good agreement of results and attractive visual patterns of normal modes attracted attention of students. Results are confirmed using modern modal testing methods. Presented approach is complementary to standard teaching of structural dynamics.
Original languageEnglish
Pages (from-to)161-172
Number of pages12
JournalFacta Universitatis: Series Architecture and Civil Engineering
Issue number2
Publication statusPublished - 2014


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