Applied Mechanics and Materials Vols. 687-691

Abstract: In order to obtain the effects of abrasive configurations on the grinding force of superhard abrasive grinding wheel, an experiment was carried out, which grinds steel material by the use of electroplating CBN grinding wheel with different abrasive configurations, mainly including disordered, phyllotactic, matrix and dislocation configurations. The results show that under the experiment conditions, the grinding force of each grinding wheel will increase with the grinding parameters, the grinding force is smaller by the grinding wheel with orderly configurations than disordered configurations and under the same condition of experiment, the grinding force is smallest by the grinding wheel with abrasive phyllotactic configurations.

Abstract: In this paper, the energy saving base on reduce voltage for motors in oil pump is analyzed, based on which the control principles of optimal slip rotating speed with maximum efficiency, minimum current, minimum input power and maximum power factor are investigated in detail, and then the PID controller that the parameter turned by BP neural network is designed，the result of experiment revealing that the essential of these control.

Abstract: On the basis of nonlinear features analysis of restoring torque, damping torque and especially hull deformation, a nonlinear roll equation of rotary molding boats has been established. The equation includes elastic deformation term which differs from existing ones usually borrowing ideas of steel boats. By numerical simulation, it’s found roll frequency and velocity increase when elastic deformation occurs, i.e. the roll stability margin shrinks which can underlie how to amend the stability evaluation criteria on rotary molding boats.

Abstract: In this paper, the adaptive impedance control proposed by Seul is studied in detail aiming at the disadvantages of traditional impedance control algorithm. In simulation experiment, above two methods are used to control the planar robot. The performance of merits of two algorithms is analyzed detailedly. From the final result of simulation, the adaptive impedance control algorithm has the performance of robustness, that is: it can perform well as though the mathematical model of robot is not accurate and it can work well in the bad working circumstance.

Abstract: In the process of large scale design of intelligent lighting system, the adjustable light is used for lighting, it can save a lot of energy, and lighting and energy-saving are completed. Therefore, large-scale intelligent lighting system is proposed in this paper, and the system design is obtained. According to the situation, the sensor is used to gather the natural state of the light. A reasonable illumination condition is selected. The voltage conversion processing is taken, and adjustable lighting control model is established. Simulation results show that the large-scale intelligent lighting system is applied in the lighting, the power consumption of lighting can be reduced, and the satisfactory results are obtained.

Abstract: In generally, there are multiple factories. According to mining areas, it supplies different quality iron ore concentrate. And according to the unique requirements of owners, different grades concentrate cannot be confused. Therefore, the grade of slurry pipeline transportation is needed to be used. When in the study of grade transmission, we must focus on Hydraulic characteristics of solid-liquid two-phase for different quality of iron ore concentrate. Slurry concentration and Critical velocity of flow is especially important. Research shows that the deposition rate of laminar or turbulent transition velocity is higher than the occasion when the slurry has concentration, so the minimum operating speed is controlled by sedimentation; the concentration lower limit is 62%. If the concentration is over 68%, the yield stress of slurry will increase, and the pipeline pressure will drop, which is very sensitive to slight changes in concentration. Therefore, the solid weight concentration range is 62% to 68%,as the selection range of design.

Abstract: Because of lacking the imprecise mathematical model is a difficult problem in the area of dynamic control for robot manipulator. In this paper, a novel scheme which can realize the decoupling for robot by ANN inverse system in the inner loop and control the position and force in the outer loop is presented. The method is studied in the environment of Matlab and is realized by a manipulator in Lab. Analyzed from the experiment result, this algorithm is very feasible and it provides a basis for the further research.

Abstract: This paper proposes a robust tracking algorithm for an autonomous car-like robot, and this algorithm is based on the Tracking-Learning-Detection (TLD). In this paper, the TLD method is extended to track the autonomous car-like robot for the first time. In order to improve accuracy and robustness of the proposed algorithm, a method of symmetry detection of autonomous car-like robot rear is integrated into the TLD. Moreover, the Median-Flow tracker in TLD is improved with a pyramid-based optical flow tracking method to capture fast moving objects. Extensive experiments and comparisons show the robustness of the proposed method.

Abstract: The system test results show that the system modules can run normally. When light detection circuit, pyroelectric infrared sensor detects information, microcontroller will drive the relay open the light, or shut down. In the window, the motor can work normally, can automatically control the curtain, in the ZigBee information transmission, can to control the power supply and remind. DT11 indoor temperature and humidity sensor detection, can work normally. Through repeated tests, HOLTEK microcontroller based ZigBee smart classroom lighting control system is developed.

Abstract: The ship autopilot can't work properly on the land due to the lack of the real rudder angle and heading feedback signal. The paper established the ship motion mathematic model and designed a rudder angle generating device. Applying the real autopilot, a detection and simulation system is developed. The proposed system can connect the output data between the ship autopilot and ship motion mathematic model, then the real ship autopilot performance can be detected and evaluated.