人体手臂系统男女腕部振动传递率及建模

IF 0.7 4区 数学 Q4 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
Mingzhong Wu, Ming-Zhong Wu, Zhi-Hong Lin
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引用次数: 0

摘要

人体腕部振动传递率标准值的确定对于理解振动暴露和建立有效的模型具有重要意义。本研究按照ISO 10819标准的要求,随机抽取200名受试者(男性154人,女性46人),研究人体体重、性别等因素对手臂振动传递率和手腕部位[公式:见文]-轴方向振动传递率的影响。此外,还得到了两种性别腕部振动传递率的最大值和最小值以及平均值和标准差的包络。其次,分析了性别差异对振动传递率均值的影响。最后,分别基于男性和女性受试者手腕处的振动传递率平均值,建立了两个三自由度(3-DOF)的手臂系统模型。研究发现,在14 ~ 39hz的频率范围内,男性的振动传递率均值大于女性。在其余频率范围内,女性的平均振动传递率大于男性,特别是在17-30 Hz范围内。雌虫的振动传递率比雄虫小10 ~ 18.5%。在150 ~ 250 Hz频率范围内,雌性的振动传递率比雄性高40 ~ 83%。与其他不考虑性别差异的模型相比,该模型的新颖之处在于预测了男性和女性之间的模型差异。实验结果表明,该改进模型可用于腕部振动传递率的预测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Vibration transmissibility at male and female wrist of the human hand-arm system and modeling
The determination of standard values of vibration transmissibility at the wrist of the human body is very important to understanding vibration exposure and developing a valid model. In this work, the effects of human weight, gender, and other factors on the transmissibility of hand–arm vibration and vibration transmissibility in the [Formula: see text]-axis direction at the wrist site were randomly collected from 200 subjects (154 males and 46 females) as per the requirement of the standard ISO 10819. Moreover, the envelopes of the maximum and minimum values, as well as the mean and standard deviation of the vibration transmissibility at the wrist site, were obtained for both genders. Second, the effect of gender differences on the mean value of vibration transmissibility was analyzed. Finally, two three-degree-of-freedom (3-DOF) models of the hand–arm system were developed based on the average values of vibration transmissibility at the wrists of male and female subjects, respectively. The study revealed that the mean value of vibration transmissibility was greater in males than in females in the frequency range of 14–39 Hz. For the rest of the frequency ranges of females, their mean vibration transmissibility is greater than that of males, especially in the range 17–30 Hz. It was also observed that the vibration transmissibility of females is 10–18.5% smaller than that of males. The vibration transmissibility of females is greater than that of males by 40–83% when the frequencies are between 150 Hz and 250 Hz. The novelty of this proposed model is the prediction of model differences between males and females compared to other models that do so without considering gender differences. It is validated that the proposed modified model can be used to predict the vibration transmissibility of the wrist.
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来源期刊
Advances in Complex Systems
Advances in Complex Systems 综合性期刊-数学跨学科应用
CiteScore
1.40
自引率
0.00%
发文量
121
审稿时长
6-12 weeks
期刊介绍: Advances in Complex Systems aims to provide a unique medium of communication for multidisciplinary approaches, either empirical or theoretical, to the study of complex systems. The latter are seen as systems comprised of multiple interacting components, or agents. Nonlinear feedback processes, stochastic influences, specific conditions for the supply of energy, matter, or information may lead to the emergence of new system qualities on the macroscopic scale that cannot be reduced to the dynamics of the agents. Quantitative approaches to the dynamics of complex systems have to consider a broad range of concepts, from analytical tools, statistical methods and computer simulations to distributed problem solving, learning and adaptation. This is an interdisciplinary enterprise.
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