Pregled bibliografske jedinice broj: 1227131
Modal superposition of non-classically damped transient problems with position and velocity dependent force
Modal superposition of non-classically damped transient problems with position and velocity dependent force // The Fourteenth International Conference on Computational Structures Technology
Montpellier, Francuska, 2022. str. 1-6 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1227131 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Modal superposition of non-classically damped
transient problems with position and velocity
dependent force
Autori
Lozina, Željan ; Sedlar, Damir ; Bartulović, Anđela
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Skup
The Fourteenth International Conference on Computational Structures Technology
Mjesto i datum
Montpellier, Francuska, 23.08.2022. - 25.08.2022
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
non-classical damping, modal superposition, nonlinear problem, transient vibration, numerical integration, ship power propulsion
Sažetak
The approach to the solution of transient problems of the semidefinite systems with non-classical damping and force dependent on time, position and velocity is proposed and implemented. It provides reliable, efficient and accurate solution algorithm without blurring the physical meaning. Problem matrix is constant even the problem is nonlinear, its inversion is trivial, and order is controllable. The price is solution of the eignproblem and transformations between natural and principal coordinates. However, in spite of the iterative procedure, modal approach is proved to be highly efficient with maximum two tightening iteration per step for given integration parameters, practically independently on the integration scheme involved. The contribution is illustrated on the theoretical and practical examples. The proposed procedure eliminates nonphysical behaviour of the semidefinite problems under reactive force e.g. as in the ship power propulsion system under ice conditions when simulating long lasting ice impact conditions.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
EK-EFRR-KK.01.2.2.03.022 - Centar kompetencija za naprednu mobilnost (Vulić, Nenad; Jurić, Zdeslav; Krčum, Maja; Trogrlić, Boris; Jasak, Hrvoje; Soldo, Vladimir; Slapničar, Vedran; Rudan, Smiljko; Garašić, Ivica; Kožuh, Zoran; Smoljan, Darko; Lozina, Željan; Blagojević, Branko; Ljubenkov, Boris; Krstulović-Opara, Lovre; Bonković, Mirjana; Radić, Joško; Klarin, Branko; Marasović, Ivan, EK - Podrška razvoju Centara kompetencija, referentna oznaka: KK.01.2.2.03.) ( CroRIS)
Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split
