Objective In the scope of the development of a more electrical aircraft, this subject aims at the development and the experimental validation of a reliable sizing method for mechanical transmission elements, specifically screw drives and thrust bearings of aeronautic flight control actuation system. In fact the replacement of the hydraulic with electric devices promises many advantages but we have to pay attention to the compliance with the operational reliability and safety requirements of these essential components.Main critical requirements for the sizing method of rolling drivetrain contact elements are related to oscillation loads and reversal of the direction of load, low frequencies oscillating movements, proper lubrication conditions at critical temperatures (low and extreme high temperatures). These critical issues are typical of aeronautic applications, specifically of the helicopter swashplate actuation system, and they are not covered by the standard norms.At first, the project activities will concern a deep survey of state of the art, including norms, patents and proprietary methods of sizing. Moreover a targeted analysis to the exact definition of the operating conditions will be conducted. These first steps will be essential steps for the development of the sizing method. Then, the third step will be the analysis of the stress at the contact area between the balls/rollers and the tracks on both bearings and screws in dynamic conditions that will be performed by dedicated software.The case of the helicopter swashplate will be consider as a benchmark and a dedicated sets of rolling contact thrust bearing and balls screws transmission will be designed, manufactured and tested in order to validate the developed new method of sizing. Fields of science engineering and technologymechanical engineeringtribologylubricationnatural sciencescomputer and information sciencessoftwareengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftrotorcraftengineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaeronautical engineering Programme(s) FP7-JTI - Specific Programme "Cooperation": Joint Technology Initiatives Topic(s) JTI-CS-2012-2-SGO-02-047 - Development and validation of sizing method for screw drives and thrust bearings Call for proposal SP1-JTI-CS-2012-02 See other projects for this call Funding Scheme JTI-CS - Joint Technology Initiatives - Clean Sky Coordinator UMBRAGROUP SPA EU contribution € 234 000,00 Address VIA VALTER BALDACCINI 1 LOCALITA PACIANA ZONA INDUSTRIALE 06034 Foligno Pg Italy See on map Region Centro (IT) Umbria Perugia Activity type Private for-profit entities (excluding Higher or Secondary Education Establishments) Administrative Contact Alessandro Viola (Dr.) Links Contact the organisation Opens in new window Total cost No data Participants (2) Sort alphabetically Sort by EU Contribution Expand all Collapse all UNIVERSITY OF STUTTGART Germany EU contribution € 235 371,60 Address KEPLERSTRASSE 7 70174 Stuttgart See on map Region Baden-Württemberg Stuttgart Stuttgart, Stadtkreis Activity type Higher or Secondary Education Establishments Administrative Contact Daniel Roth (Mr.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data VGA SRL Italy EU contribution € 189 000,00 Address VIA UGO FOSCOLO 1 06053 Deruta Pg See on map Region Centro (IT) Umbria Perugia Activity type Private for-profit entities (excluding Higher or Secondary Education Establishments) Administrative Contact Federico Gallorini (Mr.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data