Smart non metallic materials for extreme high pressure fluid power transmission in industrial mobile machinery. Rapporto Tecnico IMAMOTER - Dicembre 2007 - Collaborative project, Large-scale integrative project, FP7-NMP-2007-LARGE-1, Call 4.2.5 (Rapporti tecnici, manuali, carte geologiche e tematiche e prodotti multimediali)

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  • Smart non metallic materials for extreme high pressure fluid power transmission in industrial mobile machinery. Rapporto Tecnico IMAMOTER - Dicembre 2007 - Collaborative project, Large-scale integrative project, FP7-NMP-2007-LARGE-1, Call 4.2.5 (Rapporti tecnici, manuali, carte geologiche e tematiche e prodotti multimediali) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bonanno A., Milani M., Paoluzzi R. (2007)
    Smart non metallic materials for extreme high pressure fluid power transmission in industrial mobile machinery. Rapporto Tecnico IMAMOTER - Dicembre 2007 - Collaborative project, Large-scale integrative project, FP7-NMP-2007-LARGE-1, Call 4.2.5
    (literal)
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  • Bonanno A., Milani M., Paoluzzi R. (literal)
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  • http://www.imamoter.cnr.it (literal)
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  • 13 (literal)
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  • Memorie interne (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per le macchine agricole e movimento terra (literal)
Titolo
  • Smart non metallic materials for extreme high pressure fluid power transmission in industrial mobile machinery. Rapporto Tecnico IMAMOTER - Dicembre 2007 - Collaborative project, Large-scale integrative project, FP7-NMP-2007-LARGE-1, Call 4.2.5 (literal)
Abstract
  • The concept of the project starts from the fact that since years, the fluid power industry is basing its performance on metallic materials and components, reaching a high level of performance. Nevertheless, some constraints hinder further development in terms of: o Bulky components when manufactured in cast iron or steel, leading to energy losses in passive parts of work cycle (70% of the operation); o Difficulties and cost constraints in procurement of raw materials with strong dependence on seasonal and geo-political questions; o Limit in the use of environmentally friendly operating fluids for the oxidation of metals; o High cost of stainless steel components; o High cost and difficulties in recycling materials due to the presence of mutually incompatible parts. In recent years the advances in the structural characteristics of plastics have been tremendous. The specific modulus and the resistance of FRPs (Fiber Reinforced Plastic) materials are greater than that of steel with only a fraction of the weight and a significantly shorter supply chain. The ratio for GRP and PEEK is 2.5 higher than steel and 1.5 than aluminium. The figures indicate that a weight reduction in fluid power components can range from 50 to 66 % with respect to steel and from 7 to 30 % with respect to aluminium. The application of these materials to fluid power transmission components used in mobile construction equipment and machinery, will face the following extreme conditions: 1. Extremely high pressures compared with the existing applications. Typically 20 to 30 MPa compared to the 5-10 MPa representing today's state of the art; 2. Extremely aggressive environment due to the presence of dust, mud, humidity and in some cases corrosive or explosive fluids and gases; 3. Stringent demand in terms of duration and reliability due to the criticality of some applications of fluid power industry, and ability to withstand thermal conditions variable from temperatures as low as -40 °C and up to 120 °C. The main target of the project will be a proper tailoring of Fibre Reinforced Plastic to match the specific demands of mobile off-road machinery domain, especially earth moving (e.g. high pressure compliance with harsh environments lightness flexibility and recyclability). In fact, all the above mentioned extreme conditions have not yet been fully addressed in this domain, especially for what concern the fluid power circuits and transmissions. However, a resistance towards the extreme conditions above is fundamental for the actual deployment of FRPs in the off-road machinery domain, Otherwise the advantages gained from their deployments could be lost. In more details, the project is aimed at comparing different reinforcement types: from \"random\" fibres to last generation \"3-D\" reinforcements. The comparison will include mechanical behaviour and properties \"in-application\", production method and productivity increase with a shortening of the design chain and reduction of the production costs. The project aims to contrast different production methods such as RTM (Resin Transfer Moulding), RFI (Resin Film Infusion) and Injection Moulding. The target is to identify the best candidate technology for the specific application. The possibility to obtain the final component directly from the moulding process with no further machining is also a possible target. The family of components involved by the core idea can be classified, according to commonly accepted practice, as follows: (i) Pumps and motors; (ii) Directional and proportional valves; (iii) Hoses and fittings; (iv) Cylinders and accumulators. Each group of components will apply the core idea of the project in a slightly different manner, maximizing the project output. (literal)
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