OR 1
The aim of this OR is the identification of a specific set of requirements from which the DAVYD proposed technologies will be developed, starting from the analysis of the current worldwide aircraft market scenarios and the strategic agendas related to the reduction of the environmental impact of future air transport. In order to strengthening the synergies between DAVYD Project and ongoing European Clean Sky 2 Projects, introduced above (i.e. RACER Landing Gears ad NextGenCTR wing), the analysis of fast rotorcraft scenario will be mainly investigated. In addition, the key enabling technologies requirements will be also intersected with evolutionary (2035) and revolutionary (2050) developments envisaged in the aeronautical research and innovation agendas (ACARE, FlightPath 2050). Furthermore the airworthiness scenario will be also taken into account in order to refine a set of technologies requirements to be easily applied in the aeronautics arena. These requirements will be the inputs for the following activities of the DAVYD project. At the end a Key Performance Indicators technologies state of art will be carried out to identify the delta-improvement obtained with the technologies proposed by the DAVYD project.
OR 2
The aim of this OR is to setup the Technologies for the development of innovative CS. In particular starting from the identified set of requirement (OR1) a CS reference will be identified in terms of dimensions, aerodynamics performances and functionalities. In parallel, a dedicated trade-off analysis between different composite materials (i.e. composite thermoplastic, out of autoclave epoxy carbon), metallic materials (i.e. Al-Li alloy, Ti-V alloy) and processes (i.e. thermoforming, ALM, resin infusion) will be performed. The activities foresee specific aerodynamics and acoustic analysis in order to optimize the external shape to reduce the noise. Dedicated aeroelastic studies will be performed in order to define the preliminary stiffness and the dynamic parameters to avoid any instabilities. A Multidisciplinary Design Optimization (MDO) software tool, aimed at supporting the preliminary design of CS by taking into account also aeroelasticity, will be developed. The main objective will be the identification of most promising technologies and strategies guaranteeing low environmental impact and low life cycle cost.
OR 3
The main objective of this OR is to develop enabling technologies to achieve 270 VDC actuators respecting the aeronautic requirements (low size and weight, airworthiness). Along with the electrical actuation, the investigation of acoustic emissions of Landing gear will be performed, where acoustic design is not refined due to inspection, maintenance and safety requirements. In principle, a significant decrease of the landing gear noise can be achieved by fully encasing it in an aerodynamic fairing. These solutions will be tested in the present project and the innovative geometry adapted to the proposed L/G actuation system might help to overcome the overriding requirements of weight and safety, that have prevented this solution from being adopted thus far. All DAVYD activities will be specifically focused on application to compound rotorcraft, having limited landing gear compartment.
OR 4
For the activities related to the realization of composite coupons, the sub-components for control surfaces, the control surfaces demonstrators as well as the manufacturing of final and intermediate demonstrators for EMA and ECU, the DAVYD consortium will also use the following knowledge and results already available as results of past experience in both research and industrial development.
OR 5
The OR5 scope consists in the overall technologies validation by performing specific tests. The work package closes with the validation at laboratory environment. The validation will be achieved through ground laboratory and open-field tests on coupons, sub-components as well as on full scale articles, the preliminary test matrixes are outputs of OR2 and OR3. The test articles manufactured in OR4 will be subjected to: mechanical, environmental and dynamic tests on specific rigs (both for CS and EMA) as well as wind tunnel tests for verification of benefit of aero-acoustic design strategies (for control surfaces only). Special test to demonstrate the electromagnetic compatibility of ECU will be also performed.
OR 6
The OR6 aims at an effective management of the project day-to-day activities; an effective technical coordination and monitoring of the project progress, according to the established management structure; ensuring the correct communication and dissemination of the project results; defining exploitation measures as a way to further increase the value of the project.