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ANSYS is used to carry out 3d elastic-plastic finite element analysis on the transmission tower foundation of different pile spacing. Non-thickness contact element is employed to simulate the nonlinear behavior of pile-soil interaction. Drucker-Prager elastic-plastic constitutive model is adopted to represent nonlinear behavior of soil, the pile being assumed to be elastic. Settlement, foundation...
Face milling is a typical intermittent cutting process. With the tool's rotation, as well as the cutter tooth cutting in and out of the workpiece, the magnitude of the cutting force also changes periodically; furthermore, it would influence the cutting heat, tool wear, chip shape and the integrity of machining surface directly. Therefore, making the exact prediction of the cutting force in face milling,...
The web environment creates risks together with benefits for web services. Web services often engage attacks from hackers or anyone having hostile intensions. The behavior of services is often effected by the environment changes which should be included in its specifications. In addition, services usually have some mechanisms provided by the developers to deal with the environment changes, especially...
Based on the tracking control of chaotic system, the synchronization of hyperchaos in three-cell coupled quantum cellular neural network is studied; a secure communication system based on the hyperchaotic synchronization of the quantum cellular neural network is presented; its performance in the presence of channel noise is analyzed. Numerical simulations are given to illustrate the effectiveness...
In this paper, we study the control strategy for connectivity guaranteed trajectory tracking for multi-agent systems using artificial potential based approach. Some agents, called active agents (AAs), which are attracted by the reference point (modeled as the virtual leader), lead the rest of the group to perform the task. Special features of our approach are that the group is not required to be initially...
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