人类背包负重步行能量消耗计算模型研究

Based on the experimental results of the parameters related to the energy expenditure of back-pack weight-bearing walking, this paper establishes a mathematical model to calculate energy consump-tion , verifies the correctness of its model , and discusses the effect of backpack weight-bearing parameterson the energy expenditure of human walking. A dual-mass-spring model ,similar to the human body back-pack weight-bearing walking model , was used to construct the model kinematic equation.Results show thatwhen the natural frequency of elastic backpack is lower than the walking resonance frequency , energy ex-penditure is significantly reduced.The energy expenditure of the elastic backpack increases near the reso-nance frequency of the human body and is more significant at a higher speed or greater weight-bearing.The calculated results of the net mechanical work model of the vertical displacement ,phase dfference anddifferent backpack parameters of the human body are basically consistent with the experimental results. Appropriate elastic backpack can effectively reduce energy expenditure during damping , heavy load andrapid walking.'The calculation of backpack weight-bearing walking energy consumption by double mass-spring model is basically consistent with the experimental results, indicating that the modelig method ofthis model is reasonable and can be used to predict energy expenditure of human body backpack weight-bearing walking.