Improvement in vehicle's ride comfort with application of anisotropic human-body vibratactile sensitivity

• Project/Area Number: 25420203
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: National Institute of Occupational Safety and Health,Japan
• Principal Investigator: Shibata Nobuyuki 独立行政法人労働者健康安全機構労働安全衛生総合研究所, 人間工学研究グループ, 上席研究員 (40333380)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 全身振動 / 振動感受性 / 方向依存性 / 感覚尺度 / 振動伝達率 / 人体振動

Outline of Final Research Achievements

The aims of this study were to elucidate the effect of the vibration direction and frequency contents on human-body vibrotactile sensitivity and its relationship to the vibration transmissibility characteristics of human body. The results obtained in this study suggest that ride comfort can be improved without reduction of the total whole-body vibration by tranfer of the vibration component in the most sensitive vertical direction to the horizontal directions. Also people are sensitive to low / high frequency contents in the vertical whole-body vibration.

Research Products

• [Journal Article] Subjective response of standing persons exposed to fore-aft, lateral and vertical whole-body vibration (2015)
  • Author(s): Nobuyuki Shibata
  • Journal Title: International journal of Industrial Ergonomics Volume: 49 Pages: 116-123
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Subjective response ofperson affected by frequency contents of whole-body vibration (2016)
  • Author(s): Nobuyuki Shibata
  • Organizer: Proceedings of 23rd International Congress on Sound & Vibration
  • Place of Presentation: Athens
  • Year and Date: 2016-07-10
  • Int'l Joint Research
• [Presentation] Effect of body posture on subjective response to whole-body vibration (2014)
  • Author(s): Nobuyuki Shibata
  • Organizer: Forum Acusticum 2014
  • Place of Presentation: クラクフ、ポーランド