A Frequency Weighting Contour for Chinese Young Males
- VernacularTitle:中国男性青年坐姿Z轴振动频率计权曲线
- Author:
Shaoping PENG
;
Yingzhong LI
;
Yibao HAN
;
Yanhua XIAO
- Publication Type:Journal Article
- Keywords:
vibrational stress;
human body;
sitting position;
z axis vibration;
frequency weighting;
equal vibration sensation contour
- From:Space Medicine & Medical Engineering
2000;13(3):162-165
- CountryChina
- Language:Chinese
-
Abstract:
Objective To obtain the frequency weighting contour for seated Chinese young males in z axis.Method 10 male volunteers served as the subjects.They were exposed to standard vibration stimulus (a sinusoidal vibration of 1.0 m/s2 at 8 Hz) and 14 kinds of sinusoidal experimental vibration stimuli at frequencies from 4 Hz to 80 Hz.The magnitude of the experimental vibration stimulus was changed by the subject through a signal condition and switching device made by ourselves to obtain an equal vibration sensation to the standard vibration.The data were fitted to the same form of the frequency weighting Wk of ISO 2631-1 with the least square method and optimization of parameters.Result Compared with ISO 2631-1,the frequencies weightings of Chinese young males at 16～80 Hz are significantly higher than those of ISO 2631-1(P<0.005),but there are no significant difference between two frequency weighting contours at other frequencies. Conclusion Chinese young males are more sensitive to vibration at 16～80 Hz in Z axis.
