人体对1.0Hz以下低频振动的响应

Human Responses to Low Frequency Vibration below 1.0 Hz

ISO 2631/DP-1989修改草案[1]对原标准作了修改,推荐了一组频率加权函数曲线。本试验针对草案的0.25～1.0Hz低频垂直振动,通过对12名青年学生的胃电和人体不平衡的测试进行了试验分析,结果表明,胃电和人体质心不平衡的变化趋势与人体对低频振动的主观反应大体一致,为人对低频振动的反应提供了有效的客观指标。修改草案的低频振动的加权函数基本符合实际情况。

This paper presents the experiment results of human responses to low frequency vibration below 1.0 Hz in respect to ISO2631/DP1989 revised draft proposal. With vertical vibration from 0.25 to 1.0 Hz, the responses of 12 normal Students are determined by measuring the electrogastrogram and the center of human body's gravity. The experiment results approxiate to subjective assesment. It provides and effective objective rating for evaluating low frequency vibration, and low frequency weighting curves in ISO 2631/DP 1989 revised draft proposal is practical.