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首页> 外文期刊>International Journal of Vehicle Noise and Vibration >Influence of postures and vibration magnitude on seat-to-head transmissibility during uniaxial whole body vibration exposure
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Influence of postures and vibration magnitude on seat-to-head transmissibility during uniaxial whole body vibration exposure

机译：姿势和振动幅度对单轴全身振动暴露期间座椅对头部可透过性的影响

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摘要

Prior understanding of the dynamic behaviour of the human body in the vibrating environment is very important for the vehicle system design. Majority of the past studies have paid attention to the vertical vibration exposure and human body in seated postures without backrest support. In the present work, the seat-to-head transmissibility was studied for the test subjects in four seated postures under the Gaussian random vibration exposure in the three independent translational directions. The experiments were performed on ten healthy male subjects by exposing them to 0.5, 1.0, and 1.5 m/s~2 rms vibration magnitude of random vibration in the 0.5-20 Hz frequency range. The vertical backrest support increases the seat-to-head transmissibility during the vertical and fore-and-aft vibration exposure at all levels of vibration magnitude. The nonlinear effects of vibration magnitude on seat-to-head transmissibility are found during the vertical and fore-and-aft vibration exposure.
机译：事先了解人体在振动环境中的动态行为对于车辆系统设计非常重要。过去的大多数研究都将注意力集中在垂直振动暴露和人体无靠背支撑的坐姿中。在当前的工作中，研究了在三个独立的平移方向上的高斯随机振动暴露下，四个坐姿下的测试对象的座椅到头部的透射率。通过在0.5-20 Hz频率范围内使10位健康男性受试者暴露于随机振动的0.5、1.0和1.5 m / s〜2 rms振动幅度下，进行了实验。垂直靠背支撑提高了在所有振动强度水平下垂直和前后振动暴露期间座椅到头部的可传递性。在垂直和前后振动暴露期间，发现振动幅度对座椅到头部的可传递性的非线性影响。

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