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<p>This study investigated a method for evaluating seat vibration comfort across an extensive range of backrest angles. A road test was conducted during which occupants subjectively rated their vibration comfort while simultaneously recording acceleration signals from the passenger seat. The results indicated that under specific conditions, occupants’ subjective perception of vibration comfort deteriorated as vehicle speed increased or backrest inclination decreased. Time domain analysis demonstrated that the headrest longitudinal and lateral acceleration vibration dose values decreased with greater backrest inclination. Frequency domain analysis revealed that the resonance frequency of vertical in-line transmissibility from the vehicle floor to the seat cushion increased with increasing backrest inclination. Furthermore, vertical in-line transmissibility at the resonance frequency from the vehicle floor to both the backrest and headrest increased as the backrest inclination increased. Based on Stevens’ power law, the wk-filtered longitudinal headrest acceleration vibration dose values exhibited a strong correlation with occupants’ subjective perceptions.</p>

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Evaluation of vibration comfort for vehicle seats with extensive backrest angles based on road tests

  • 期刊论文

  • 发表日期：

    2025年4月11日

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  • Jianfeng Wu,
  • Lijun Zhang,
  • Dejian Meng,
  • Yan Tang,
  • Wenbo Li,
  • Kaikun Pei

摘要

This study investigated a method for evaluating seat vibration comfort across an extensive range of backrest angles. A road test was conducted during which occupants subjectively rated their vibration comfort while simultaneously recording acceleration signals from the passenger seat. The results indicated that under specific conditions, occupants’ subjective perception of vibration comfort deteriorated as vehicle speed increased or backrest inclination decreased. Time domain analysis demonstrated that the headrest longitudinal and lateral acceleration vibration dose values decreased with greater backrest inclination. Frequency domain analysis revealed that the resonance frequency of vertical in-line transmissibility from the vehicle floor to the seat cushion increased with increasing backrest inclination. Furthermore, vertical in-line transmissibility at the resonance frequency from the vehicle floor to both the backrest and headrest increased as the backrest inclination increased. Based on Stevens’ power law, the wk-filtered longitudinal headrest acceleration vibration dose values exhibited a strong correlation with occupants’ subjective perceptions.