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Vpliv električne upornosti na karakteristiko elektromagnetnega dušilca mehanskih nihanj
Krivic, Gašper (Author), Slavič, Janko (Mentor) More about this mentor... This link opens in a new window

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Abstract
Klasičen dušilec mehanskih nihanj se uporablja za prenos energije z osnovne strukture in s tem zmanjšanje njene amplitude nihanja. Vendar je učinek klasičnega dušilca vezan na ozko frekvenčno območje. V zaključni nalogi je predstavljen elektromagnetni dušilec s spremenljivimi mehanskimi lastnostmi primeren za dušenje na širšem frekvenčnem območju. Raziskali smo vpliv njegove električne upornosti ob vsiljenem nihanju. Rezultati kažejo, da z upornostjo vplivamo na razmernik dušenja: večja električna upornost povzroči manjše dušenje. Največje razmernike dušenja smo dosegli s posnemano negativno upornostjo. Na koncu je prikazana še njegova uporaba za kontrolirano dušenje nosilca.

Language:Slovenian
Keywords:dušilec mehanskih nihanj, elektromagnetni pretvornik, dušenje, mehanska nihanja
Work type:Final paper (mb12)
Tipology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2020
Publisher:[G. Krivic]
Number of pages:XIV, 47 f.
UDC:537.311.3:534.833.6(043.2)
COBISS.SI-ID:27816195 Link is opened in a new window
Views:95
Downloads:44
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Secondary language

Language:English
Title:Influence of electrical resistance on the characteristic of an electromagnetic vibration absorber
Abstract:
The traditional vibration absorber is employed to reduce the vibrations of a primary structure. However, the working frequency band of such an absorber is very narrow. The final thesis presents an electromagnetic absorber with variable electro-mechanical properties suitable for broadband vibration absorbing. The effect of its resistance to forced oscillation was investigated. The results show that resistance affects the damping ratio: higher electrical resistance results in less mechanical damping. The highest damping ratios were achieved with simulated negative resistance. Finally, its use for controlled damping of the beam is shown.

Keywords:vibration absorber, electromagnetic transducer, shunt damping, mechanical vibrations

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