Obiettivo The air bleed system is an air source both for conditioner of aircraft cabin and for de-icing systems. The main element of the air bleed is a butterfly-type valve (BV). This valve rotates on two ball bearings.The durability and reliability problems of these bearings are defined by the following factors:complex design; absence of solid lubrications;high wear;low overhaul period (600 hours at a temperature between 450 and 500°C);low vibration strength.The development of new nanocomposite materials for fabrication of novel BV sliding bearings is the main goal of the Project.The main Project scientific and technical objectives:-development of low cost technology for synthesis of novel solid lubricant nanoparticles (inorganic fullerene-like materials IF);-development of IF intercalation method (MS2, where M=Mo, W, Nb, Ta) with atoms of transition metals to provide their anomalous low friction properties;-analysis and experimental study of the mechanical and tribological properties of IF-MS2 nanoparticles;-Development of novel technology for fabrication of BV bearings with desired properties (density, micro-channels structure, strength, etc.) required for effective incorporation of IF nanoparticles;-development of low cost innovative technology for mechanical alloying of BV sliding bearings with IF nanoparticles using original surface deformation technique;-study of nano-granular flow in the micro-channels of the porous media with the help of a microprobe extrusion technique that permits to measure real stress-strain flow parameters in perforated samples having a network of interconnected tortuous channels;-analysis of structure and properties of the novel sliding bearings (mechanical, friction, fatigue strength, wear resistance);-production of pilot batches of BV bearings (according to LTS requirements) including the development of manufacturing expert system;-development of method and software package for prediction of wear behavior and durability analysis of novel BV sliding bearings.Expected industrial achievements related to the Project end-user industrial problems (Liebherr Aerospace Toulouse (LTS))-like the main supplier of air bleeds systems for Airbus family):-Development of novel BV sliding bearing based on new nanocomposite materials for application in high pressure butterfly-type valve of engine air-bleed systems of conditioners of cabin of AIRBUS aircrafts (chiefly for new aircraft A380 that is characterized by increased temperature and strict requirements for durability and reliability) with the following unique operating parameters:-dry friction at operating temperature up to 650°C; -continuous temperature gradient between 0 and 50°C between the inner and outer rings;-friction coefficient 0.17- 0.25;-overhaul period about 1200 hours (improved in 2 times in comparison with existing BV bearings);-increased in 2-3 times vibration strength. Parole chiave nanoparticles solid lubricant tribology Programma(i) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Argomento(i) Airbus 2004 - INTAS Collaborative Call with Airbus Invito a presentare proposte Data not available Meccanismo di finanziamento NoE - Network of Excellence Coordinatore Ministry of Science, Metal Forming Institute (INOP) Contributo UE Nessun dato Indirizzo Jana Pawla II 14 61-139 Poznan Polonia Mostra sulla mappa Costo totale Nessun dato Partecipanti (5) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto Academy of Sciences of Belarus, Powder Metallurgy Research Institute (PMRI) Bielorussia Contributo UE Nessun dato Indirizzo Platonova str. 4 220600 Minsk Mostra sulla mappa Costo totale Nessun dato Kemsing Engineers Limited Regno Unito Contributo UE Nessun dato Indirizzo Rathbone Place 35-50 W1A 5NA London Mostra sulla mappa Costo totale Nessun dato Liebherr-Aerospace Toulouse (LTS) Francia Contributo UE Nessun dato Indirizzo ave. des Etats-Unis 408 31016 Toulouse Mostra sulla mappa Costo totale Nessun dato Russian Academy of Sciences A.A.Baikov's, Institute of metallurgy and material science (IMET) Russia Contributo UE Nessun dato Indirizzo Leninskiy prospekt 49 119991 Moscow Mostra sulla mappa Costo totale Nessun dato Russian Ministry of Science and Education Moscow, Institute of Electronic Technique (MIET) Russia Contributo UE Nessun dato Indirizzo K-498 103498 Zelenograd Mostra sulla mappa Costo totale Nessun dato
