Newsletters

[1] Progress update at the EASN Association Newsletter, January 2017 Issue

SARAH (Increased Safety and robust certification for ditching of aircrafts and helicopters) is a Horizon 2020 collaborative project aiming at establishing novel holistic, simulation-based approaches to the analysis of aircraft ditching. The project is built up from a consortium of experts from OEM industries, experienced suppliers of simulation technologies, established research institutions and representatives of the certification authorities. The ambitious project has been launched in October 2016 and will be developed across a 36-month period.

Within the project, novel analysis methodologies and technologies will be developed for improving the safety of the air transport system. Improved understanding of certain environmental conditions (waves, ground aerodynamics, handling and approach conditions) during ditching, impact and landing will also be pursued. Finally, design solutions to increase safety of conventional and unconventional aircrafts and helicopters will be addressed.

Find out more here.

[2] Progress update at the EASN Association Newsletter, April 2017 Issue

At six months from the official Kick-off, SARAH is running ahead to establish novel holistic, simulation-based approaches to the analysis of aircraft ditching for improving the safety of the air transport system. The prime concern of this very dedicated consortium for the first months was the successful launch of the project and of the respective technical activities as well as the realization of the initial interactions among the partners.

During this period the conditions that will be used for the aircraft ditching tests to be performed at CNR-INSEAN have been defined. In particular, four different test typologies have been decided to be considered, namely double curvature rigid specimen, single curvature aircraft‐like structure, thin flat plates and scaled fuselage with dynamic pitch. Some aspects concerning the shapes, dimensions and main structural characteristics of the specimen have been decided. All the main aspects of the test conditions have been discussed and agreed with the involved partners within the technical limits allowed by the testing facilities. For each test typology, the instrumentation adopted and the quantities that will be measured have been also defined.

The consortium is currently organizing the M6 progress meeting which will take place at Airbus Defence and Space facilities in Getafe, Spain on Tuesday 25th and Wednesday 26th of April 2017. The objective of this meeting is to review the progress performed since October 2016 and the activities planned up to the end of the first year of the project. More information about the project's progress and latest results is available on the project's progress timeline.

Find out more here.

[3] Progress update at the EASN Association Newsletter, September 2017 Issue

As SARAH is approaching to its first year of activities several important achievements have been realized. In particular, towards enhancing high fidelity simulations, the SPH model has been developed and will be tested for impact problems concerning a flat panel to which also an horizontal velocity will be imposed. Also during this period, detailed analysis of the data from SPH simulation concerning preliminary test on water impact of a flat panel has been performed. The SPH-Flow software has been used and the results have been compared with Experimental data available as well as with analytical results from potential flow theory. The comparisons were satisfactory and represent a sound base for extension to more complex problems. In regards to the preparation of the Helicopter ditching tests, the consortium is still working on the design of the experimental campaign. In particular, during this period the partners are doing the engineering (mechanics, electronics) necessary to perform the campaign and the definition of the final instrumentation and the test matrix. Finally, towards analyzing the effect of ground aerodynamics on ditching, the FreSCo tool under development by TUHH is now able to read deformations provided from FEM tools and according to this to deform the CFD grid during the run time of the calculation.

The consortium is currently organizing the M12 progress meeting which will take place at Airbus Helicopters facilities in Marseille, France on Thursday 5th and Friday 6th of October 2017. The objective of this meeting is to review the progress of each WP since April 2017 and the activities planned up to the end of the reporting period of the project. More information about the project's progress and latest results is available on the project's progress timeline.

Link to the September 2017 issue of the EASN Newsletter

Test specimen and set up for the drop test experiment

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 724139.

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