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A sensor network for aerospace applications is presented. The single node has been designed to follow important requirements in aerospace environments such as low power consumption, lightweight and reliability. Moreover, the network does not use radiofrequency transmitter/receiver to send the information, using infrared technology instead. The network has been designed, realized and tested. Some sample...
In the Life Cycle Management context of complex systems there are a few “families” of products which, due to the aleatory behavior of the development and production processes, present difficulties in the management of the remaining usable life and spare parts approach. One of such “family” is represented by composite materials and products. This article proposes a methodology to improve their support...
Recent developments in the Logistic Engineering field are expanding the range of analysis for Operational Availability (Ao) from purely statistical models to include prognostic models. A necessary step in order to perform prognostic analysis is the study of system's components degradations. The degradation of a component is a case by case study, which characteristics that change significantly even...
Through the concept of the “physics of failure,” this article analyzes a possible extension of the modern Logistic Support Analysis (LSA) databases such as ASD S3000L in order to support a new view of operational availability based on the categorization of stresses obtained by operational scenarios and applicable to FMMEA (Failure Mode Mechanism Effect Analysis). In order to integrate such methodologies...
An electronic sensor card for aerospace applications is presented. The device uses infrared technology to transmit measurements toward a central unit. It has been designed following a low power consumption strategy which allows the use of a mini photovoltaic panel supplier. The card could be efficiently used in structures which ensure the line of sight between the card and a central receiver unit...
In this work we present an investigation on a conductive thermoplastic nanocomposite used as flexible and stretchable strain gauge to be applied on inflatable structures for both terrestrial and extra-terrestrial applications. In particular we analysed the sensor behaviour by using an one-dimensional expansion system for increasing strain up to 5% and we studied the device changing in temperature...
A novel method to synthesize nesquehonite, MgCO3 · 3H2O, via reaction of a flux of gaseous CO2 with Mg chloride solution at ambient conditions, performed using a reactor, is here described. The reaction rate of the process is rapid, with deposition of abundant carbonate in few minutes. The results of a multi-disciplinary methodology, including SEM-EDAX, XRD, ICP-AES and thermal analysis, suggest that...
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