Subjective absolute discomfort threshold due to idle vibration in passenger vehicles according to sitting posture

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• 作者：J. T. Song ; S. J. Ahn ; W. B. Jeong…
• 关键词：Key WordsIdle vibration ; Passenger vehicle ; Discomfort threshold ; Frequency weighting curve ; Sitting posture ; Apparent mass ; Equivalent discomfort ; Three ; down one ; up method
• 刊名：International Journal of Automotive Technology
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：18
• 期：2
• 页码：293-300
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Automotive Engineering;
• 出版者：The Korean Society of Automotive Engineers
• ISSN：1976-3832
• 卷排序：18

文摘

Idle vibration, occurring when a vehicle comes to a stop while the engine is on, is known to be a main cause of discomfort for passengers, and the customer effect has been recently growing. The frequency of idle vibration is determined by the engine type. To lower the vibration, various technologies have been applied to optimize the engine mount and vehicle body structure. In addition to the technological developments, research on human response with a consideration of idle vibration is needed to effectively reduce the level of discomfort experienced by passengers. Seats aimed at enhancing static comfort influence the sitting posture of passengers; sitting posture is a factor affecting human body characteristics that response to idle vibration. This study examined the absolute discomfort threshold of idle vibration according to the sitting postures of 13 taxi drivers. The four sitting postures of subjects on a rigid-body seat without a backrest were variables in the determination of absolute discomfort threshold of idle vibration. The absolute discomfort threshold curves obtained in this experiment were less sensitive to frequency changes than the frequency weighting function of ISO 2631-1.