Whole-body vibration exposure in long-nose 10-wheel dumper trucks and some influencing factors
研究了加拿大两个城市15辆长头十轮自卸卡车驾驶员的全身振动暴露，发现道路、前悬架、速度、驾驶员体重和座椅比装载或减震器数量影响更大，且振动剂量值比加速度指标更能识别高风险案例。
Long-nose 10-wheel dumper trucks are widely used across North America, yet limited data exist on typical whole-body vibration (WBV) exposure for their drivers. This study evaluated typical WBV exposure in fifteen 10-wheelers in two Canadian cities through 116 measurement trials. WBV at the driver seat level was assessed using frequency-weighted root mean square acceleration ( a w ) and vibration dose value (VDV), following ISO 2631-1 (1997), using both dominant axis and vector sum approaches. Among 66 typical exposure scenarios, 27 had at least one daily WBV index exceeding the danger limit, indicating likely health risks. Roads travelled, vehicle front suspension characteristics, speed, driver weight, and the seat itself, had a greater influence on WBV exposure than bin loading or pneumatic seat suspension damper count. Moreover, daily VDV indices identified more high-risk cases than acceleration-based indices, highlighting the importance of selecting appropriate WBV metrics as different indices may yield varying interpretations of health risks. • Assessed whole-body vibration (WBV) exposure in long-nose 10-wheel dumper trucks on paved public roads, following ISO 2631-1 (1997). • Effects of several variables (e.g., road type, truck front suspension characteristics, driver weight, seat, bin loading) on WBV were reported. • Highlighted differing WBV health risk interpretations when using the dominant axis (per ISO 2631-1) vs. using the vector sum of the three axes. • Vibration dose value (VDV) was shown to be more reliable than weighted root mean square acceleration ( a w ) for detecting high-risk WBV cases.