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首页> 外文期刊>Applied Ergonomics >Discomfort during lateral acceleration: Influence of seat cushion and backrest
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Discomfort during lateral acceleration: Influence of seat cushion and backrest

机译：横向加速度时的不适感：座垫和靠背的影响

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摘要

Lateral acceleration causes discomfort but how the discomfort depends on the frequency of acceleration or characteristics of seating is poorly understood. Using magnitude estimation, twelve male subjects rated the discomfort caused by lateral oscillation at eight frequencies (0.2-1.0 Hz) across four seating conditions (a rigid seat and a train seat, both with and without backrests). Discomfort increased with increasing frequency of lateral acceleration in a similar manner for all four seating conditions. However, at all frequencies and with both seats there was less discomfort when sitting with backrest support than without. Least discomfort occurred on the train seat with backrest and greatest discomfort on the rigid seat without backrest. Current standards predict an additive effect of backrest on vibration discomfort, but the findings show that low frequency lateral acceleration can cause less discomfort when sitting with a backrest than when sitting on the same seat without a backrest.
机译：横向加速度会引起不适感，但是这种不适感如何取决于加速度的频率或就座特性却知之甚少。使用幅度估计，十二名男性受试者对在四个座位条件（刚性座椅和火车座椅，带或不带靠背）上以八个频率（0.2-1.0 Hz）的横向振动引起的不适进行了评估。对于所有四个座位情况，不适感都随着横向加速度频率的增加而增加。但是，无论使用哪种频率，在两个座位上，靠背支撑都比不使用时少。带靠背的火车座椅上最不舒服，而没有靠背的刚性座椅上最大的不舒服。当前的标准预测靠背会对振动不适产生累加效果，但是研究结果表明，与坐在同一座位而不带靠背的情况相比，有靠背的低频侧向加速度引起的不适感要小。

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