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Bionic knee was important basic driving element for biped robot. with the adult male's right leg knee working as bionic prototype, the three-dimensional finite element model was established, and the cinnections balance equation was established with the help of nonlinear contact theory, then system penalty function was used to deal with the contact constraint by considering the minimum potential energy...
The finite element models have been used to evaluate the biomechanics of healthy and pathologic knee. And the imaging data provide functional representation of anatomical structures for the models. Previous studies have established the geometry of bone from Computed tomography (CT), and created the cartilage of femoral, tibial according to Magnetic Resonance Imaging (MRI). The meniscus geometric structure...
The human hand is a very difficult system to mimic and copy. In order to obtain a good artificial model, capable to perform even a part of the natural hand's activities, some steps should be followed. Before implementing an artificial hand, one has to go through the modeling, design, and numerical analysis, in order to study the final system's behavior into the intended environment. This paper presents...
Create a biological modeling of human lower limb is a difficult job due to the complex and irregularity skeleton structure. However, rebuilding the model that can be used to calculate the biomechanics characteristic is the key step to research the human body. Reverse engineering should be used in rebuilding model. The model consists of at least lower limb skeleton and joint cartilage. Cartilage is...
In this study, three-dimensional laser scanning technology was employed to measure geometrical data of the human spine vertebrae. Based on the measured point-cloud data of the vertebra figuration, a detailed three-dimensional nonlinear finite element model of the lumbosacral joint L5-S1 of the spine was created and used to investigate the biomechanical properties of the lumbosacral joint. The finite...
The advent of the super aged society and decline in earning power makes it critical to develop technologies that can support the limitations of our human abilities. We have developed Robot Suit HAL to support human physical capabilities. A wearable robot expected to work in human society is required to have a high structural safety, with a tough and compact structure and a human outline. To achieve...
Based on CT scanning pictures from a volunteer's knee joint, a three-dimensional finite element model of the health human knee joint was constructed including complete femur, tibia, fibular, patellar and the main cartilage and ligaments. The model was validated by comparing with experimental and numerical results obtained from other authors. The pressure distribution of contact surfaces of knee joint...
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