Ship technology and the advance of research in the field are strongly linked to experiments and measurements. Experimental research is the basis for the validation of calculation methods. In some fields of naval architecture as well as in the early days of William Froude, experiments have been the only possibility to gain information on the performance of a design. Nowadays, the delivery of most ships is connected to dedicated sea trials. Such tests and experiments, which are conducted frequently, can refer to standard procedures as the guidelines of the ITTC (International Towing Tank Conference).
Model-scale tests are an established method to investigate numerous phenomena related to ships experimentally in smaller scale. In some fields this can be well applied and standards provided by the ITTC or classification societies exist. However, in small scale experiments “scale effects” are encountered, which may not allow a complete transfer of the results to full-scale. In the field of ship ice interaction already the commonly used scaling approach is disputed (Atkins, 1975, Dempsey and Palmer, 2009, Jordaan et al.,2012) and also scale effects can be significant (von Bock und Polach and Ehlers, 2015). In other disciplines, such as ship structures, even laboratory experiments are of large scale and require unique facilities.
Therefore, data of large scale experiments are a rare commodity, due to the physical size of the experiments, high costs and practical difficulties. The data and publications of experimental research are of high value to the community and of high significance for the development of understanding and calculation methods in the field. The latter manifests in the high interest which publications on full-scale experiments and measurements gain, such as: full-scale collision experiments (Tabri et al. 2009), ice force measurements on a lighthouse (Schwarz and Jochmann, 2001), the comparison of full-scale measurements with CFD calculations on the manoeuvrability of ships (el Moctar et al., 2014), or long-term measurements on board of a ship e.g. on global loads and bending stresses (Kahl et al., 2008).
Yet, there is still an urgent need for experimental research and measured data in ship technology, as many aspects are not understood well enough or insufficiently covered by experiments. Apart from the publishing of successful experiments, also lessons learned from failures can contribute to the understanding of physical processes, but are hardly available. Therefore, this SI provides a platform for large scale experiments and measurements to contribute to the development of the field.
What can I contribute?
Topics for this SI may include (but are not limited to):
- Global and local ship hull loads, extreme loads and fatigue (including ship vibration and noise)
- Fuel consumption and verification of fuel saving measures
- Full-scale trials: ice, propulsion and manoeuvring
- Loads on appendages
- Full scale performance measurement
- Large scale laboratory tests
- Performance- and safety-related monitoring
- Guest Editor: Rüdiger U. Franz von Bock und Polach, D.Sc., Hamburg University of Technology (firstname.lastname@example.org)