人体手臂抓取模型的有限元模态分析与谐波响应分析。
Finite element modal analysis and harmonic response analysis of human arm grasping model.
机构信息
College of Engineering, Huazhong Agricultural University, Wuhan, China.
Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan, China.
出版信息
Comput Methods Biomech Biomed Engin. 2020 Nov;23(14):1082-1093. doi: 10.1080/10255842.2020.1787392. Epub 2020 Jul 9.
Based on CT scan, the finite element models of human arm were constructed. Modal analysis of the arm was performed, and the natural vibration characteristics were evaluated. The dynamic simulation of the vibration transmission process was carried out when grasping the handle, and the vibration response and transmission characteristics were investigated. Resonance was likely to occur in the ranges of 5-10 Hz and 35-40 Hz, which caused fatigue damage to the arm. Vibrations in the ranges should be avoided having direct contact with the handle. The analysis results were found to be consistent with those of modal analysis.
基于 CT 扫描，构建了人体手臂的有限元模型。对手臂进行了模态分析，评估了其自然振动特性。对握持手柄时的振动传递过程进行了动力学模拟，研究了振动响应和传递特性。在 5-10 Hz 和 35-40 Hz 的范围内可能发生共振，这会导致手臂疲劳损伤。应避免与手柄直接接触这些范围内的振动。分析结果与模态分析结果一致。
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