Articolo AIMETA

Scritto da Valerio Rossi Venerdì 18 Settembre 2009

"Comparison of different seat-to-head transfer functions for vibrational comfort monitoring of car passengers", è il titolo di una pubblicazione scientifica che descrive lo studio teorico e sperimentale della trasmissibilità di un corpo umano seduto sollecitato con vibrazioni verticali.

A reliable quantitative comfort assessment for car occupants is not an easy task to achieve. Comfort is a matter of personal perception, thus a solution which may seem feasible to one could be not to another. Moreover, the complexity of the human phisiology, as well as the lack of consensus about quantitative criteria for health and vibrational comfort assessment, make this task even more difficult.

UNI 2631, BS 6841 and ENV 12299 require the measurement of frequency-weighted accelerations at the point of entry into the body. This frequency weighting accounts for the sensitivity of the body to different frequencies vibrations. Currently turn-key systems are very expensive and used by trained personnel.

The principal aim of this investigation is the development of software and hardware tools for the long term and real time monitoring of whole body vibration. This require the availability of analytical models, experimental data and assembly of different hardware devices. In order to keep the hardware to the minimum, we have chosen to implement the methodology of the ISO 2631 norm which is suitable for whole body vibration evaluation.

Qui per vedere la relazione completa del progetto.