The final meeting of the EDA project “Next Generation of Propellers” (NextProp) took place in Brussels this month. NextProp, a cross-domain activity involving EDA’s CapTechs “Naval Systems” and “Materials & Structures”, successfully developed models and tools for the design of low-noise naval propellers. With a budget of 4 million Euros, NextProp was cooperatively funded by Italy, Norway, and Poland. Eight partner entities from these three countries implemented the project over the past three years.
Designing modern naval propellers involves various considerations such as efficiency, weight, durability, cost, and detectability. Testing these propellers through experiments, using either scale models or full-size prototypes, is crucial but can be expensive and time-consuming. Fortunately, advancements in high-performance computing have increased the importance and feasibility of numerical simulations and modelling.
Creating a model for the acoustic field generated by propeller motion is a complex task. It encompasses factors like the flow around the hull, turbulence, fluid-structure interaction at the propeller blades, and the interaction between the hull wake and propeller. This complexity defines a multi-physics and multi-scale problem that needs simplification in a computational model.
Reducing the signatureThe primary project outcome is an improved software tool for the minimisation of the acoustic signature of naval propellers. To this end, models based on hydro-elastic physics are used to predict the behaviour of typical propeller materials, including metals and advanced composites, under operational conditions. Results obtained from NextProp improve the understanding of sound generation and propagation from naval propellers and support advanced low-noise propeller design. Beyond this, NextProp brings forth new methods and setups for experimental propeller tests as well as advanced knowledge of sensor integration for the purpose of condition-based maintenance.
More detailed information on NextProp is available in the executive summary.
In combining knowledge in the fields of hydro-acoustics and advanced material properties, the project has effectively exploited synergies among EDA’s Capability and Technology Groups (CapTechs) “Naval Systems” and “Materials and Structures”. Several Member States support the continuation of the NextProp research line towards further optimisation and validation of the design and fabrication of composite and isotropic polymer propellers, with a follow-up project currently being prepared.
Eight partner entities from Italy, Norway and PolandFFI (coordinator), FiReCo, Light Structures, SINTEF Ocean, CNR-INM, CETENA, Politecnico di Milano, Polish Naval Academy.
To support the EU’s ability to act rapidly and robustly whenever a crisis erupts, the development of a European Command and Control (C2) capability is essential for decision-making, planning, and conduct of missions and operations. Supported by EDA, the European Strategic Command and Control System (ESC2) project concluded a major phase in its aim of to provide a ground-breaking solution that will enable the EU and its Member States to employ the most advanced Command and Control system available worldwide, fully interoperable with the C2 systems of the EU, Member States, NATO, and civilian agencies.
On December 11th, EDA hosted the Closure Session of the ESC2 project with the participation of Member States, stakeholders and industry. The session heard that once the ESC2 system design has delivered in 2023 as expected, a new project will link up with the ESC2 to further develop the system by creating a software prototype in 2025 ready for prompt implementation in the Military Planning and Conduct Capability (MPCC).
Together, the ESC2 and the future follow-up project European Command and Control System (EC2), will provide an advanced and integrated suite of C2 tools designed to support decision-making, planning, and conduct of CSDP missions and operations from the strategic to the operational level. It will provide a Staff-wide set of solutions, exploiting the emerging technologies in key domains such as Information Technology and Communication Systems.
With a total budget of 22 million euros, the project is funded by a group of 6 Member States: France, Italy, Germany, Luxembourg, Portugal, and Spain as the leading nation; as well as the European Commission. Launched under the European Defence Industrial Development Programme (EDIDP), the project gathered 21 companies from 10 different Member States to ensure delivery of a beyond state-of-the-art design for ESC2.
Launched in January 2021, amid COVID restrictions which restricted the first steps of the project, the project team managed to make up time and reach the end of 2023 ready to deliver the system design, after 36 months of work. The complexity and demands of the project required a wide range of actors to ensure the ambitious goals of ESC2 could be achieved.
EDA supports EU Member States acting as the ESC2 Project Manager. In this role, EDA manages Member States financial contribution, monitors the execution of the project plan, provides focused expertise and coordinates all contributing activities. Among the 21 industry partners, companies such as Indra (Spain), Thales (France), Leonardo (Italy), and Rheinmetall (Germany) all participated.
To ensure end-user requirements and operational expertise were built-in, the MPCC, EUMS and EEAS played a significant role. Additionally, the Spanish Ministry of Defence and the Greek Ministry of Defence supported this project by facilitating the participation of the industrial experts in the exercises MILEX 22, MILEX23 and INTEGRATED RESOLVE 22.