Abstract Work shoe soles are a useful tool for decreasing the amplitude of vibration transmissibility to the human body for subjects exposed to foot-transmitted vibration (FTV) in the workplace. The main objective of this paper is to identify the viscoelastic safe area of work shoe soles in the sitting posture using a biomechanical model. To identify the model parameters, twelve young males participated in the experimental test. Moreover, to identify the viscoelastic parameters of the shoe sole model, three different work shoe soles, i.e., soft sole (Shore scale: A25), fairly soft sole (Shore scale: A42), and hard sole (Shore scale: A70), were used, whose mechanical parameters were extracted by establishing the experimental test based on vibration transmissibility. Afterward, the viscoelastic safe area of work shoe soles was determined based on vibration power absorption (VPA) for subjects exposed to vibration. The numerical simulation demonstrates that the soft shoe soles can decrease the maximum value of VPA up to two times compared to barefoot conditions. Furthermore, the maximum value of VPA in the hard sole is up to 14% more than that of the soft sole. Furthermore, the experimental test shows that the amplitude of vibration transmissibility to the hard sole is 15% more than that of the soft sole (p

中文翻译：

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坐姿下工作鞋底粘弹性安全区的识别与垂直方向的振动传递

摘要 工作鞋底是一种有用的工具，可以降低工作场所暴露于足部传递振动 (FTV) 的受试者的振动传递幅度。本文的主要目的是使用生物力学模型确定坐姿下工作鞋底的粘弹性安全区域。为了确定模型参数，十二名年轻男性参加了实验测试。此外，为了识别鞋底模型的粘弹性参数，三种不同的工作鞋底，即软底（Shore scale：A25）、较软的鞋底（Shore scale：A42）和硬底（Shore scale：A70），通过建立基于振动传递率的实验测试来提取其力学参数。之后，工作鞋底的粘弹性安全区域是根据暴露于振动的受试者的振动功率吸收 (VPA) 确定的。数值模拟表明，与赤脚条件相比，软鞋底可以将 VPA 的最大值降低多达两倍。此外，硬底中VPA的最大值比软底高出14%。此外，实验测试表明，硬底的振动传递幅度比软底高15%（p