Vibration is a common phenomenon in people’s daily life. As the main bearing part of the human body, the foot can cushion the impact and shock of external force, and alleviate the influence of external vibration on the human body. Footwear with different structures and materials could cause kinematic, kinetic and biomechanical changes in the foot and leg. It is necessary to evaluate the effects of various footwear on the foot. In this paper, a method based on the vibration cushion characteristics of shoes is proposed to discuss the effect of shoes on feet. First of all, the modal test of the common sole was carried out in this paper, and the acceleration vibration level difference of the sole was obtained. Then, based on the finite element method, the power flow method was used to analyze the soles under different gait patterns. Finally, the vibration analysis of the soles filled with different porous structures was carried out by power flow method. The results show that the vibration level difference and power flow method can be used to study the vibration behavior of vibrating body from the aspects of structure and energy accurately and effectively, and the soles filled with triangular and quadrilateral porous structure have better damping performance. This method can be used to further study the biomechanical effect of the sole on foot and as a reference for shoe design.

振动是人们日常生活中的普遍现象。脚作为人体的主要支撑部分，可以缓冲外力的冲击和冲击，减轻外部振动对人体的影响。具有不同结构和材料的鞋类可能会导致脚和腿的运动，动力学和生物力学变化。有必要评估各种鞋类对脚的影响。本文提出了一种基于鞋子的减震特性的方法来讨论鞋子对脚的影响。首先，对普通鞋底进行了模态试验，得到了鞋底的加速度振动水平差。然后，基于有限元法，采用潮流法对不同步态下的鞋底进行了分析。最后，采用动力流法对不同多孔结构的鞋底进行了振动分析。结果表明，利用振动能级差和潮流法可以准确有效地从结构和能量两方面研究振动体的振动特性，并且三角形和四边形多孔结构填充的鞋底具有更好的阻尼性能。该方法可用于进一步研究鞋底在脚上的生物力学效果，并为鞋类设计提供参考。填充有三角形和四边形多孔结构的鞋底具有更好的阻尼性能。该方法可用于进一步研究鞋底在脚上的生物力学效果，并为鞋类设计提供参考。填充有三角形和四边形多孔结构的鞋底具有更好的阻尼性能。该方法可用于进一步研究鞋底在脚上的生物力学效果，并为鞋类设计提供参考。