Akademik Veri Yönetim Sistemi
8 th International congress of academic research, 22 - 25 Haziran 2022, ss.1-2
Prediction of loads during wave impact is of a great importance in ship
tanks. In order to investigate different wave types, a series of experimental
investigations were carried out by tracing the free surface deformation,
structural deformation and pressure distribution on the slope walls. The
oscillation motion is applied via a mechanism then the liquid motion impact on
the slope sidewalls. From digital images captured using a high speed camera the
evaluation of wave versus time is observed and characteristics of sloshing is
measured. The different excitation frequencies are applied to the tank and the
free surface deformation, wave generation, wave run up through sidewall and
mixture of air-water are examined. The constant height of strain gage and
pressure sensors are installed with divining equal compartments to the tank.
The flexible wall is used during strain measurement then rigid wall is applied
same tank to report pressure distribution. The values of pressure are measured
by mounting three pressure sensors to the sidewalls and compared with each
oscillation frequencies. Then shape of pressure time history, peak points and
the time of reaching heights are highlighted. The measurement of the global
loads on the chamfer tank during sloshing experiment is performed by employing
a strain gage. The wave impact on structure are plotted by strain values
against time. The wave impact is significantly rely on excitation frequencies
and natural frequency of tank itself. The water level deformation is extremely
deformed at resonance stage. It is also caused to transfer the energy to slope
wall as pressure, also structural deformation. This study is mainly focused on
resonance frequency excitations. The results demonstrated that pressure sensor
measurement doesn’t reliable as much as strain measurement at around resonance
frequencies due to nonlinear wave impact.