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Kinematic simulation of human gait with a multi-rigid-body foot model

Computer Aided Drafting,Design and Manufacturing 2012年第2期22卷 42-46页

作者： YANG Yan HU Xiaochun LI Xiaopeng School of Mechanical and Automotive Engineering Hefei University of TechnologyHefei 230009China

The paper builds a multi-rigid-body model of human with a 4-rigid-body foot in the 3D CAD software Solidworks, based on human anatomy. By controlling the rotation of the ankle and major joints of human body while walking, the Kinematic simulation was performed in the dynamics simulation software ADAMS. The paper analyzes the simulate results and points out deficiencies in the current work and the direction of research efforts in future.

关键词： multi-rigid-body foot model human gait simulation

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Modeling and simulation of normal and hemiparetic gait

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Frontiers of Mechanical Engineering 2015年第3期10卷 233-241页

作者： Lely A. LUENGAS Esperanza CAMARGO Giovanni SANCHEZ Technological Faculty Universidad Distrital Francisco Jose de CaldasBogota Colombia Engineering Faculty Universidad de San Buenaventura BogotaColombia

gait is the collective term for the two types of bipedal locomotion, walking and running. This paper is focused on walking. The analysis of human gait is of interest to many different disciplines, including biomecha- nics, human-movement science, rehabilitation and medicine in general. Here we present a new model that is capable of reproducing the properties of walking, normal and pathological. The aim of this paper is to establish the biomechanical principles that underlie human walking by using Lagrange method. The constraint forces of Rayleigh dissipation function, through which to consider the effect on the tissues in the gait, are included. Depending on the value of the factor present in the Rayleigh dissipation function, both normal and pathological gait can be simulated. First of all, we apply it in the normal gait and then in the permanent hemiparetic gait. Anthropometric data of adult person are used by simulation, and it is possible to use anthropometric data for children but is necessary to consider existing table ofanthropometric data. Validation of these models includes simulations of passive dynamic gait that walk on level ground. The dynamic walking approach provides a new perspective of gait analysis, focusing on the kinematics and kinetics of gait. There have been studies and simulations to show normal human gait, but few of them have focused on abnormal, especially hemiparetie gait. Quantitative comparisons of the model predictions with gait measurements show that the model can reproduce the significant characteristics of normal gait.

关键词： bipedal gait biomechanics dynamic walking,gait model human gait hemiparetic human gait

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