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首页> 外文期刊>International Journal of Vehicle Noise and Vibration >Time and magnitude dependent masking effects of vehicle's 2 Hz shock type vibrations on the perception of vehicle's 4.5 Hz longitudinal shock type vibrations for seated human subjects
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Time and magnitude dependent masking effects of vehicle's 2 Hz shock type vibrations on the perception of vehicle's 4.5 Hz longitudinal shock type vibrations for seated human subjects

机译：车辆2 Hz冲击型振动对车辆4.5 Hz纵向冲击型振动感受的时间和大小依赖掩蔽效应

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摘要

In the literature there are no known studies regarding temporal masking effects of a vehicle's shock type vibrations. Since shock type vibrations of different directions of movement, magnitudes and frequencies are acting on the human body while driving a vehicle, temporal masking effects may be relevant when evaluating a vehicle's ride comfort. This study investigates temporal post-masking effects of a vehicle's 2 Hz shock type vibrations (masker) on the perception of 4.5 Hz longitudinal shock type vibrations (test signal) for the seated human body. It was found that post-masking exists for the investigated vibrations. The masking effect is highly dependent on the time gap between masker and test signal: with increasing time gap the masking effect decreases. Furthermore the amount of masking increases with increasing masker magnitude. Both findings are consistent with the findings in psychoacoustics. In addition to that the masking effect depends on the masker's direction of movement.
机译：在文献中，没有关于车辆的冲击型振动的时间掩蔽效应的已知研究。 由于在驾驶车辆的同时在人体上作用在人体上的不同方向的冲击型振动，当评估车辆的乘坐舒适性时，时间掩蔽效果可能是相关的。 本研究研究了车辆2 Hz冲击型振动（掩蔽）对坐着的人体4.5Hz纵向冲击型振动（测试信号）的感知的时间后掩蔽效应。 发现掩蔽了调查振动的掩蔽。 掩蔽效果高度依赖于掩蔽器和测试信号之间的时间间隙：随着时间间隙的增加，掩蔽效果降低。 此外，掩蔽量随着掩蔽幅度的增加而增加。 这两个发现都与心理声学中的研究结果一致。 除了掩蔽效果取决于掩蔽方的运动方向。

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