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The compliant mechanisms are highly coupled and extremely nonlinear systems, where the dynamic model is generally used for the control of the system. This paper focuses on dynamic modeling of curve-type fully compliant mechanism, by taking the J-type bionic foot as an example. Based on the pseudo-rigid-body model and the Dynamic Nominal Mechanism (DNM) method, the dynamics model of the equivalent...
Aiming at the problem of high density crowd evacuation, a crowd evacuation algorithm based on the improved social force was proposed. Firstly, the algorithm is an improvement to the traditional social force model of the problem with all pedestrians variation are same, on the basis of the group form, the optimal speed was set to constrain the speed of the members in the group. Secondly, according to...
As a formal description approach, the trust network can intuitively describe trust relationships among entities in virtual communities and attracts great attentions. The trust network visualization is a key to explore the mechanism of trust propagation and study the trust evaluation. Most existing network visualization approaches only take into account the undirected and unweighted graphs, which cannot...
With the development of large cities, urban pattern has changed gradually, it has been increasing demand to expand city scale, and construct a harmonious society. The change of social development drives land, labour and capital elements flowing to improve the level of social welfare constantly. In this reform we need to analyze each element of the welfare change to avoid losses, in order to achieve...
Traditional level-set-based methods of tracking contours suffered from occlusion and fusion. In this paper, the proposed method introduces dynamic incident detection to find and handle occlusion and fusion. Color histogram of the hue component in HSV color space is used to identify the objects re-entering after occlusion. On the other hand, object features including the size and the motion pattern...
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