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Integrating Biodynamic Measurements in Frequency-Based Substructuring to Study Human-Structure Interaction

机译：在基于频率的子结构中集成生物动力学测量，研究人结构相互作用

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The mechanical behavior of the human body has long been characterized using biodynamic measurements on various human body parts in several positions and postures. Generally, these measurements are gathered as close as possible to the skin-mechanical structure interface for best results understanding how the body reacts when in contact with a vibrating structure. Substructuring methods have been widely used on mechanical structures to study and improve the dynamic behavior of complex assemblies. In the case of interactions between a human body and a vibrating structure, the dynamics involved in the structure alone is as important as the dynamics of the human body. Thus, the use of Frequency-Based Substructuring (FBS) to combine biodynamic measurements with the structure's dynamic behavior is essential to understanding the vibration transmission phenomena in this complex assembly. This article presents the advantages of this approach as well as the challenges when performing FBS between a mechanical structure and biodynamic measurements. The study focuses on a vibrating handlebar in conjunction with 3 different holding positions of the hand-arm system. The FBS assemblies are gathered and the results are compared with experimental measurements on the entire assembled structure for each position over a frequency range between 1 and 100 Hz.
机译：人体的力学行为已经在几个位置和姿势中使用对各种人体部位的生物动力学测量来表征。通常，这些测量以尽可能接近的皮肤机械结构界面收集，以了解最佳结果，了解身体在与振动结构接触时的反应。面部结构方法已广泛用于机械结构，以研究和改善复杂组件的动态行为。在人体与振动结构之间的相互作用的情况下，单独涉及结构中涉及的动态与人体的动态一样重要。因此，使用基于频率的子结构（FBS）以将生物动力学测量与结构的动态行为相结合，对于理解该复杂组件中的振动传输现象是必不可少的。本文介绍了这种方法的优势以及在机械结构和生物动力学测量之间执行FBS时的挑战。该研究侧重于振动车把与手臂系统的3个不同的保持位置相结合。收集FBS组件，并将结果与​​在整个组装结构上的实验测量进行比较，每个位置在1到100Hz之间的频率范围内。

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