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The fretting wear behaviors of an aluminum alloy 2024Al flat specimen against a 440C stainless steel counter ball specimen were evaluated in distilled water, artificial seawater and rainwater by using a ball-on-flat configuration with 300μm amplitude at room temperature for 1h. Potentiodynamic anodic polarization was used to measure the corrosion behaviors of 2024Al before and after the corrosion...
To solve the path planning in the complicated environments, a new adaptive planning strategy using ant colony algorithm (AACA) based on predictive learning is presented. A novel predictive operator for direction during the ant colony state transition is constructed based on an obstacle restriction method (ORM), and the predictive results of proposed operator are taken as the prior knowledge for the...
Particle swarm optimization (PSO) algorithm is a new random global optimization algorithm, and the simple PSO (SPSO) is short of high convergence speed, strong optimization ability and so on. To improve the optimization property of SPSO, a novel chaos particle swarm optimization (CPSO) algorithm is presented. The characteristics of ergodicity and randomness of chaotic variables are considered to produce...
Aiming at the complexity of data processing in Weigh-In-Motion (WIM) system, a nonlinear system model is built for the WIM system with radical basic function (RBF) neural network. To achieve more accurate network weights of RBF and improve the model detection precision, a novel chaos immune algorithm is presented to optimize the RBF network weights. In this paper, the logistic equation is used to...
To realize the adaptive control in the heat tunnel system of fire detector, an adaptive PID control algorithm based on BP network and immune genetic algorithm (IGA) is presented. Firstly, the immune genetic algorithm is used to optimize the weights of BP network, which reduces the influence of control effect due to initial network weights; secondly, the PID parameters are adjusted on line based on...
Molar bears complicated features like cusp, ridge and fossa etc, and the CAD model of its prosthesis usually comes in STL format. On the basis of STL, this paper intends to introduce a new topological structure, and will propose the vertex-based entity offset algorithm in order to realize the rapid generation of roughing/finishing tool path for molar prosthesis. Indicated by simulated machining, the...
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