Pregled bibliografske jedinice broj: 582364
ENERGY BALANCE METHOD WITH USING EIGENFUNCTIONS IN THE ESTIMATION OF OVERHEAD TRANSMISSION LINE AEOLIAN VIBRATIONS
ENERGY BALANCE METHOD WITH USING EIGENFUNCTIONS IN THE ESTIMATION OF OVERHEAD TRANSMISSION LINE AEOLIAN VIBRATIONS // BOOK OF ABSTRACTS of 7th International Confress of Croatian Society of Mechanics / Virag, Zdravko ; Kozmar, Hrvoje ; Smojver, Ivica (ur.).
Zagreb: Studio Hrg, 2012. str. 81-82 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 582364 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
ENERGY BALANCE METHOD WITH USING EIGENFUNCTIONS IN THE ESTIMATION OF OVERHEAD TRANSMISSION LINE AEOLIAN VIBRATIONS
Autori
Wolf, Hinko ; Adum, Boris ; Pustaić, Dragan ; Zenzerović, Ivan
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
BOOK OF ABSTRACTS of 7th International Confress of Croatian Society of Mechanics
/ Virag, Zdravko ; Kozmar, Hrvoje ; Smojver, Ivica - Zagreb : Studio Hrg, 2012, 81-82
ISBN
9789536986057
Skup
7th INTERNATIONAL CONGRESS OF CROATIAN SOCIETY OF MECHANICS
Mjesto i datum
Zagreb, Hrvatska, 22.05.2012. - 25.05.2012
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Aeolian vibrations; Energy Balance Method with Using Eigenfunctions; transmission line
Sažetak
Wind-induced overhead transmission line Aeolian vibrations can cause the damage and breaking of the cable due to the material fatigue. Aeolian vibrations are in practice estimated by using the Energy Balance Method and the Modified Energy Balance Method with Using Eigenfunctions which enables determination of eigenvalues of a cable with line fittings, and therefore, the calculation of bending strains at any point in the span. Warning sphere is usually modelled as a particle having only a vertical rectilinear motion. This is a crude assumption because in this way any rotation of warning sphere cannot be taken into account. In this paper the warning sphere is modelled as a rigid body which perform plane motion. Bending strains at the critical points of the span, i. e. at the suspension clamps, at the points of damper attachments and at the points of warning sphere attachments are determined for considered two models of warning spheres. The results show significant differences of banding strains obtained with the model of a warning sphere as a particle (rectilinear motion of a particle) and with the model of a warning sphere as a rigid body (plane motion of a rigid body). In the considered example these results differ up to 57 %.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
120-0362321-2198 - Numerička i eksperimentalna istraživanja nelinearnih mehaničkih sustava (Wolf, Hinko, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
