Effects of frame of reference on the judgments of whole-body vibration intensity.

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  • Suzuki Hiroaki
    Ergonomics Laboratory, Fundamental Research Department, Railway Technical Research Institute

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  • 全身振動の強度評価に及ぼす枠組みの影響
  • ゼンシン シンドウ ノ キョウド ヒョウカ ニ オヨボス ワクグミ ノ エイキ

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Abstract

Although the concept of the term ‘riding comfort’ is ambiguous, in the present paper it means a perceptual experience derived from the vibrational factors of a running railway vehicle. When we regard riding comfort evaluation as a perceptual judgment process, we must consider that what is perceived is dependent not only on the physical properties of the stimuli, but also on the frame of reference. The purpose of the present study is to examine the effect of the frame on the judgments of vibration intensity in the anchoring effect paradigm. Using the four-axis vibration apparatus, we conducted experiments for eighty subjects, in which frequencies and lateral accelerations of vibrations were changed. As the result, we found a clear anchoring effect. This suggests that we must take into consideration effects of frame of reference in terms of riding comfort criterion of railway vehicles.

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