Using a mobile app to estimate whole-body vibration and seat isolation performance in surface mining Online publication date: Mon, 18-Oct-2021
by Alan G. Mayton; Brian Y. Kim
International Journal of Heavy Vehicle Systems (IJHVS), Vol. 28, No. 4, 2021
Abstract: The objectives for this study were twofold: (1) to determine whether the whole-body vibration application (WBV app) may effectively serve as a simple tool for monitoring WBV exposure; and (2) to assess when vehicle seats may need adjustment, repair, or replacement. Data were collected on 17 mobile mining vehicles and equipment at six surface operations. Comparing the WBV app to the Siemens/LMS reference system showed excellent correlation (r = 0.998 and 0.987, respectively) for frequency-weighted-root-mean-square acceleration (aw) and vibration dose value (VDV) normalised to an 8-hour shift. Seat performance, using the mobile app showed greater variation, yet high positive correlations (r = 0.896 and 0.936) for the aw and VDV computational methods, respectively. Hence, the WBV app demonstrates potential as a low-cost instrument to measure WBV exposures for mobile equipment operators and the capability to estimate seat performance or seat effective amplitude transmissibility (SEAT) when utilised on two iPod Touch devices.
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