Example of full-scale sloshing test
Dedicated pressure sensor Measuring pressures exerted by a fluid on a structure during hydrodynamic impact is not at all straightforward. Therefore, generally, the recorded pressures differ from actual pres- sures. Aware of this, MARIN qualified the whole chain of pressure measurements in hydrodynamic conditions that are repre- sentative of sloshing events and designed a dedicated pressure sensor. This process gave MARIN confidence in the validity of the pressure measurements obtained from the full-scale tests.
As a good correlation was found between local strains and the pressures of the con- tainment system in the full-scale tests, the Sloshel consortium concluded that pressure measurements are reliable when properly prepared and interpreted.
Sloshel is a very important project. Impact development, structural response and asso- ciated pressures have never been recorded simultaneously at full-scale before. This was only possible by employing the iCAM, in combination with robust pressure sen- sors. Therefore, the Sloshel consortium can now revisit and, if necessary, modify meth- ods which are based on small- scale testing for the assessment of containment systems subjected to sloshing in membrane LNG tanks. This process is ongoing and includes the determination of scaling laws and hydro-elastic effects.
A note of thanks: MARIN would like to acknowledge the support provided by the Sloshel consortium that made this project possible.
Spatial and temporal evolution of sloshing impact captured by iCAM
Qualification of pressure gauges report 17
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24