The methodto compute gait cycle forces and moments acting on the hip and knee joints of a lower limb with a trans-femoral prosthesis were investigated. A 3D model of the lower limb with prosthesis was created using CAD software and based on MRI data and real size dimension. The transfemoral prosthesis was modelled as a coupled of links with two revolution joints at hip and knee joint. This coupled link was connected to a bar with translation joint to description the distance walked of people in gait cycle. All parts of the prosthesis were measured and a full-size 3D model was created. The kinematics parameters of a lower limb with a prosthesis were determined from motioncaptured system data. The reaction force was measured with a force sensor in the footplate. The 3D model of the prosthesis was exported to MatlabSimmechanics. The input data which are kinematic parameters were applied to calculate the forces and moments acting on the joints. The results of this study present a method to analyse the dynamic properties of transfemoral prosthesis including speed of the gait. It could be used to calculate the load transferred from the socket to the residual limb. They could also be used to design the structure of a prosthesis and optimize the dynamic characteristics of such a prosthesis.
|Journal||MATEC Web of Conferences|
|Publication status||Published - 2016 Jan 29|
|Event||2015 International Conference on Mechanical Engineering and Electrical Systems, ICMES 2015 - Singapore, Singapore|
Duration: 2015 Dec 16 → 2015 Dec 18
ASJC Scopus subject areas
- Materials Science(all)