1,720,973 research outputs found
Tecnologie avanzate per lo sviluppo prodotto
No full textNovità presentate al convegno "Tecnologie Avanzate per lo Sviluppo Prodotto" svoltosi in occasione della chiusura del progetto 3DWebEPL presso il Politecnico di Torin
Product development methodologies for self-powered sensor-nodes in vehicle tyres
No full textIn this work the study of new product development methodologies is applied to modelling and simulation of several components of a tyre sensor node. The purpose of the sensor node is to improve the active safety of the vehicle making additional information, with respect to traditional TPMS, available to the vehicle dynamic control system. The components involved in the study are the rubber housing and the energy harvester. The rubber housing is a patch that ensures the bonding of the sensor on the tyre inner-liner, and its behaviour is simulated by means of a quasi-static FEM model where deformations and inertial loads are sequentially applied in a static simulation as a function of wheel rotation angle. The proposed method was validated by on-the-field testing. The energy harvester is a device designed to replace the batteries recovering energy from the environment. The performance of this device is studied using analytical techniques as well as numerical models. The reliability of the modelling techniques is confirmed through experimental testing in a controlled environment. The possibility of integrating semi-active controls in an energy harvester is also discussed and confirmed analytically and numerically
Optimization of magneto-mechanical Energy Scavenger for automotive tyre
No full textThis article presents multidisciplinary optimization methods applied to the design and performance evaluation of a magneto-mechanical energy scavenger for automotive wireless tire sensors. Optimal performance strictly depends on source characteristics, volume, weight and power density targets, energy scavenger typology, technological and manufacturing capabilities, optimization and reliability of performance, environment requirements, and so on. Thus an optimization study has been conducted on equivalent viscous damping due to strong magneto-electrical-mechanical coupling. To do this, an optimization tool has been developed that maximizes the power output in specific working conditions by varying the number and size of coils. © The Author(s) 2011
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