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
Duration of whole-body vibration exposure its effect on comfort
โ 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
No coin nor oath required. For personal study only.
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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
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)
The power absorbed by 12 male subjects during exposure to vertical whole-body vibration at six magnitudes of random vibration (0โข25, 0โข5, 1โข0, 1โข5, 2โข0 and 2โข5 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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