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FME Transactions
2016, vol. 44, br. 1, str. 29-35
jezik rada: engleski
neklasifikovan
doi:10.5937/fmet1601029S


Numerička analiza dejstva vetra na nisko profilne kontejnerske dizalice
aUniversity of Brescia, Department of Mechanical and Industrial Engineering, Italy
bUniverzitet u Beogradu, Mašinski fakultet

e-adresa: luigi.solazzi@unibs.it

Sažetak

Cilj predstavljene numeričke analize je da istraži probleme koji su obuhvaćeni u postupku projektovanja nisko profilnih kontejnerskih dizalica izloženih statičkom i dinamičkom dejstvu vetra, kako bi se utvrdilo da li su ova opterećenja opasna ako se uporede sa standardnim radnim opterećenjem koje se javlja u toku pretovara kontejnera. U prvom koraku istraživanje je sprovedeno pomoću različitih šema dejstva vetra koje su date u standardima; U drugom koraku je analizirano stvarno stanje (eksperimentalno dobijena brzina vetra u odnosu na vreme) i rezultati su dobijeni za konkretnu kontejnersku dizalicu lociranu u jednoj italijanskoj luci. Dobijeni rezultati u pogledu maksimalnih pomeranja na strukturi zavise od opterećenja dizalice i primene različitih šema koje se koriste da bi se obuhvatio uticaj vetra. Korišćenjem promenljivog pritiska vetra, istraživanje pokazuje da su efekti opterećenja vetrom u velikoj meri pod uticajem sopstvenih frekvencija kako noseće strukture, tako i elemenata koji čine strukturu.

Ključne reči

wind actions; low profile container crane; lattice structure; finite element analysis

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