zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo
Gašper Krivic (Author), Janko Slavič (Mentor)

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.

Keywords

diplomske naloge;dušilec mehanskih nihanj;elektromagnetni pretvornik;dušenje;mehanska nihanja;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [G. Krivic]
UDC: 537.311.3:534.833.6(043.2)
COBISS: 27816195 Link will open in a new window
Views: 380
Downloads: 142
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Other data

Secondary language: English
Secondary title: Influence of electrical resistance on the characteristic of an electromagnetic vibration absorber
Secondary 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.
Secondary keywords: thesis;vibration absorber;electromagnetic transducer;shunt damping;mechanical vibrations;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XIV, 47 f.
ID: 12008217