School of Intelligent Engineering, South China University of Technology, Guangzhou, China.
Comput Methods Biomech Biomed Engin. 2022 Nov;25(14):1554-1564. doi: 10.1080/10255842.2021.2023808. Epub 2021 Dec 30.
This paper presents an actuated spring-loaded inverted pendulum model with a vertically constrained suspended load mass to predict the vertical GRF and energetics of walking and running. Experiments were performed to validate the model prediction accuracy of vertical GRF. The average correlation coefficient was greater than 0.97 during walking and 0.98 during running. The model's predictions of energy cost reduction were compared with experimental data from the literature, and the difference between the experimental and predicted results was less than 7%. The predicted results of characteristic forces and energy cost under different suspension stiffness and damping conditions showed a tradeoff when selecting the suspension parameters of elastically suspended backpacks.
本文提出了一种带垂直约束悬挂负载质量的驱动弹簧加载倒立摆模型，以预测行走和跑步的垂直 GRF 和能量学。进行了实验以验证垂直 GRF 的模型预测准确性。在行走过程中平均相关系数大于 0.97，在跑步过程中大于 0.98。将模型对能量消耗减少的预测与文献中的实验数据进行了比较，实验结果和预测结果之间的差异小于 7%。在选择弹性悬挂背包的悬挂参数时，不同悬挂刚度和阻尼条件下的特征力和能量消耗的预测结果显示出一种权衡。
