| Abstrakt: |
Abstract Impact situations, usually involving high-G accelerations, typically take less than 40 ms to occur. In such scenarios human subjects behave in a passive-like manner as muscle activation does not have time to intervene. However, there are other situations also prone to injury that involve perilous nonimpact scenarios where predominant low-G accelerations are sustained during long periods of time, leading any alert subject to exhibit a muscular reaction to the ongoing events. Actual Anthropometric Test Devices (ATDs) exhibit passive muscular behaviour and are therefore specially tailored for the first scenarios, although their use in low-G applications has been reported in the literature. In this work a validated computational multibody model of an ATD is integrated inside a generic and simplified vehicle interior. Three-dimensional trajectories, describing extreme driving conditions, are taken from a driving simulator and feed into a multibody simulator package in order to observe if the ATD accurately reproduce the expected human behaviour. A feedback-controlled version of this ATD is then devised and its head–neck complex (HNC) response compared with the passive one and with real data acquired with a volunteer. The results obtained are discussed, and conclusions and future trends are provided. [ABSTRACT FROM AUTHOR] |
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