๐”– Bobbio Scriptorium
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Duration of whole-body vibration exposure its effect on comfort

โœ Scribed by M.J. Griffin; E.M. Whitham


Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
484 KB
Volume
48
Category
Article
ISSN
0022-460X

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The vibration isolation e$ciency of seating has been evaluated in 100 work vehicles in 14 categories (cars, vans, lift trucks, lorries, tractors, buses, dumpers, excavators, helicopters, armoured vehicles, mobile cranes, grass rollers, mowers and milk #oats). Seat isolation e$ciency, expressed by th

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Text from a newspaper was read by seated subjects (8 male, 8 female) during exposure to foreand-aft and lateral whole-body vibration. With narrow-band random vibration at frequencies between 0.5 Hz and 10 Hz and with vibration magnitudes between 0.63 m s -2 rms and 1.25 m s -2 rms, reading speed was

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The e!ect of variations in posture and vibration magnitude on apparent mass and seat-to-pelvis pitch transmissibility have been studied with vertical random vibration over the frequency range 1)0}20 Hz. Each of 12 subjects was exposed to 27 combinations of three vibration magnitudes (0)2, 1)0 and 2)

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The power absorbed by 12 male subjects during exposure to vertical whole-body vibration at six magnitudes of random vibration (0โ€ข25, 0โ€ข5, 1โ€ข0, 1โ€ข5, 2โ€ข0 and 2โ€ข5 ms -2 r.m.s.) has been measured in the laboratory. All subjects showed greatest absorbed power at about 5 Hz, but the frequency of this peak

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Five subjects were exposed to a thirty-minuie period low-frequency, narrow band, random vertical vibration spectrum, with frequency peak at 2.5 Hz and an r.m.s. "g" of 0-23, and with some low frequency acoustic noise, during which they were asked to perform a simple vigilance task. The effect of thi