EVALUATION OF RANDOM VIBRATION BASED ON INVESTIGATION OF PERCEPTION OF HORIZONTAL TRAFFIC VIBRATION MEASURED IN DETACHED HOUSES

In this study, we performed an experiment involving the measurement of the subjective perception of horizontal traffic vibration in detached houses. The objective was to investigate the influence of the predominant frequency and waveform pattern on the perception of random vibration over a wide range of frequencies. Results show that the predominant frequency greatly influences the perception of random vibration. Evaluation curve of perception of random vibration calculated by using predominant frequency and maximum acceleration is parallel to that of sinusoidal vibration. For 40% of the subjects, the random vibration was harder to perceive than the sinusoidal vibration. Based on the result, the authors present the conclusions derived from the evaluation of perception of random vibration.