Non-Contact Measurement Method for Body Vibration State of Seated Occupants using a Laser Displacement Sensor

DOI Web Site
  • TAKEDA Naoyuki
    Department of Mechanical Systems Engineering, Toyama Prefectural University
  • KOBAYASHI Sho
    Department of Mechanical Systems Engineering, Toyama Prefectural University
  • MORISAKI Ryoma
    Department of Mechanical Systems Engineering, Toyama Prefectural University
  • TERASHIMA Osamu
    Department of Mechanical Systems Engineering, Toyama Prefectural University
  • KINOSHITA Fumiya
    Department of Mechanical Systems Engineering, Toyama Prefectural University
  • TOUYAMA Hideaki
    Department of Mechanical Systems Engineering, Toyama Prefectural University
  • YAMADA Shuho
    Department of Mechanical Systems Engineering, Toyama Prefectural University

書誌事項

公開日
2024-09-20
DOI
  • 10.11395/jjsem.24.120
公開者
日本実験力学会

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説明

<p>In this study, we proposed and verified a non-contact method for measuring the vibration state of the body to improve the measurement accuracy of body vibrations in vehicle comfort research, particularly regarding seat comfort. Previous studies measured vibrational acceleration by directly attaching sensors to the body, which could affect occupant comfort and increase psychological stress. To address this issue, we employed a non-contact measurement method using a laser displacement sensor, chosen for its high temporal and spatial resolutions. The vibrational acceleration of the body was calculated by taking the difference between the second derivative of the measured displacement and the vibrational acceleration of the sensor. The results show that in the low-frequency range, the vibrational acceleration obtained was nearly identical to that measured using directly attached sensors. This suggests that the proposed non-contact method is a viable alternative to traditional methods, potentially leading to more accurate and less invasive measurements in vehicle comfort research.</p>

収録刊行物

  • 実験力学

    実験力学 24 (3), 120-125, 2024-09-20

    日本実験力学会

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