Three-dimensional model reconstruct and finite element analyses of pelvic ring based on reverse engineering technology

TIAN Wei-jun1，2，LI Yu2

（1. School of Electrical Mechanical Engineering，Northwestern Polytechnical University，Xi'an 710072，China；

2. Department of Mechanical and Electrical Engineering，Northwestern Polytechnical University Ming De College，

Xi'an 710124，China）

Abstract：In order to solve the problems of reconstruction techniques of orthopedic biomechanics medical imaging data，reverse engineering technology and finite element technology for three-dimensional reconstruction of human pelvic ring were investigated by using the interface technology between the 3D software and finite element software. After the static analysis of the normal pelvis under the action of a vertical load，the cloud distribution of stress and displacement was established. A method and key technologies were presented to human body skeleton model of three-dimensional reconstruction. The model of reconstruction was evaluated on the base of orthopedic biomechanics medical. The results show that the model reconstruction method of human body skeleton is correct and feasible.It is consistent with the finite element model analysis results and theoretical knowledge and experimental results under normal physiological action of simulated human carrying case. It can provide the basis for later medical engineering analysis and medical equipment design.