Pregled bibliografske jedinice broj: 559980
Calculation of Floating Crane Natural Frequencies Based on Linearized Multibody Dynamics Equations
Calculation of Floating Crane Natural Frequencies Based on Linearized Multibody Dynamics Equations // Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering - OMAE 2011 / Riggs, H.R. ; Buchner, B. (ur.). (ur.).
Rotterdam : Boston (MA) : Taipei: American Society of Mechanical Engineers (ASME), 2011. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 559980 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Calculation of Floating Crane Natural Frequencies Based on Linearized Multibody Dynamics Equations
Autori
Ćatipović, Ivan ; Čorić, Većeslav ; Veić, Duje
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering - OMAE 2011
/ Riggs, H.R. ; Buchner, B. (ur.). - Rotterdam : Boston (MA) : Taipei : American Society of Mechanical Engineers (ASME), 2011
Skup
30th International Conference on Ocean, Offshore and Arctic Engineering OMAE 2011
Mjesto i datum
Rotterdam, Nizozemska, 19.06.2011. - 24.06.2011
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
floating crane; natural frequencies; time domain
Sažetak
Natural frequencies and modes of a floating crane with a suspended load are studied. Both the floating crane and the suspended load are modeled as rigid bodies with six degrees of freedom. The suspended load is considered to be partially immersed in the sea water. A wire rope for load suspension is assumed to be non-extensible and without bending stiffness. Linearized governing equations for a coupled dynamic response are derived based on multibody system dynamics with small displacements assumption. An added mass for the floating crane as well as the partially immersed load is determined using traditional potential theory and tree-dimensional boundary element method (in a frequency domain). Mapping from the frequency to the time domain is necessary to determine the correct added mass value for calculating above described natural frequencies and modes. A damping of the overall system is calculated as some small portion of a critical dumping. An illustrative example is based on the floating crane during positioning of precast concrete piles. These piles are main part of foundations for over sea bridges. Obtained numerical results are compared to some experimental results.
Izvorni jezik
Engleski
Znanstvena područja
Brodogradnja
POVEZANOST RADA
Projekti:
120-1201703-1672 - Dinamika gibanja i opterećenje pučinskih objekata (Čorić, Većeslav, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
