在垂直方向和前后方向暴露于全身振动的人体受试者的生物动力学建模

Biodynamic Modeling of Human Subjects Exposed to Whole-Body Vibrations in Both Vertical and Forward and Backward Directions

摘要: 本文描述了一项研究，旨在建立一个模型来模拟人体在坐姿下受到垂直和前后方向振动时的生物动力学反应。该模型的设计旨在克服之前模型的局限性，它们只能应对特定的生物动力学响应模式。相比之下，这个新模型考虑了座位到头部的传导率、驱动点机械阻抗和表观质量这三种不同类型的生物动力学响应。通过从文献中选取实验数据，并采用曲线拟合方法，研究人员成功地优化了模型参数，使其更好地匹配实际观测数据。最终的数值模拟结果显示，新模型相比现有模型具有更好的拟合效果。这项研究对于深入理解人体在振动环境下的生物动力学行为，并为相关设备或环境的设计提供更准确的指导，具有重要意义。

Abstract: This paper describes a study aimed at building a model to simulate the biodynamic response of the human body when subjected to vertical and forward direction vibration in a sitting position. The model was designed to overcome the limitations of previous models, which could only cope with specific modes of biodynamic response. In contrast, the new model takes into account three different types of biodynamic responses: seat-to-head conductivity, drive point mechanical impedance, and apparent mass. By selecting experimental data from the literature and using curve fitting methods, the researchers successfully optimized the model parameters to better match the actual observed data. The final numerical simulation results show that the new model has better fitting effect than the existing model. This research has important implications for a deeper understanding of the biodynamic behavior of the human body in a vibratory environment and for providing more accurate guidance for the design of related devices or environments.