caa a22 4500 445361867 CHVBK 20180317142917.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11071-010-9934-9 doi (NATIONALLICENCE)springer-10.1007/s11071-010-9934-9 Inelastic impact dynamics of ships with one-sided barriers. Part II: experimental validation [Elektronische Daten] [Ihab Grace, Raouf Ibrahim, Valery Pilipchuk] This paper is the second part of a two-part study of impact interaction of a ship roll motion with one-sided ice barrier. The first part was devoted to analytical and numerical simulations for the case of inelastic impact. The analytical approach was based on Zhuravlev and Ivanov non-smooth coordinate transformations. Extensive numerical simulations were carried out for all initial conditions covered by the ship grazing orbit for different values of excitation amplitude and frequency of external wave-induced roll moment. The basins of attraction of safe operation revealed the coexistence of different response regimes such as non-impact periodic oscillations, modulated impact motion, period added impact oscillations, chaotic impact motion and roll-over dynamics. This part presents an experimental investigation conducted on a small ship model in a tow tank. In particular, the experimental tests reveal complex dynamic response characteristics such as multi-frequency wave motion caused by the wave reflection from the tank end wall. Measured results show a good agreement with the predicted results by for small angles of the barrier relative to the ship unbiased position. However, deviation becomes significant as the angle increases. This deviation is mainly attributed to the uncertainty of the coefficient of restitution, which is found to depend on the velocity of impact in addition to the geometry and material properties of the model and barrier. Springer Science+Business Media B.V., 2011 Multi-frequency waves nationallicence Coefficient of restitution uncertainty nationallicence Grace Ihab Department of Mechanical Engineering, Wayne State University, 48202, Detroit, MI, USA aut Ibrahim Raouf Department of Mechanical Engineering, Wayne State University, 48202, Detroit, MI, USA aut Pilipchuk Valery Department of Mechanical Engineering, Wayne State University, 48202, Detroit, MI, USA aut Nonlinear Dynamics Springer Netherlands 66/4(2011-12-01), 609-623 0924-090X 66:4<609 2011 66 11071 https://doi.org/10.1007/s11071-010-9934-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11071-010-9934-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grace Ihab Department of Mechanical Engineering, Wayne State University, 48202, Detroit, MI, USA aut NATIONALLICENCE 700 1- Ibrahim Raouf Department of Mechanical Engineering, Wayne State University, 48202, Detroit, MI, USA aut NATIONALLICENCE 700 1- Pilipchuk Valery Department of Mechanical Engineering, Wayne State University, 48202, Detroit, MI, USA aut NATIONALLICENCE 773 0- Nonlinear Dynamics Springer Netherlands 66/4(2011-12-01), 609-623 0924-090X 66:4<609 2011 66 11071 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 445361751 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer