Applied Mechanics and Materials Vols. 543-547

Abstract: For helicopter structural characteristics, this article focuses on the helicopter to take off, hover and other state aerodynamic analysis, the establishment of the fuselage-landing gear dynamics model; while the helicopter simulator simulation system are described, and the kinetic model was built simulation analysis, simulation results and the actual flight conditions consistent, indicating that the model is correct, there is a certain reference value.

Abstract: Trajectory optimization of spray painting robot for surfaces is studied. Because the current paint deposition rate function is too complicated, the paint deposition rate function on a plane according to the experiment data is provided. The paint thickness function for free-form surfaces is also given. A multi-objective constraint optimization problem is formulated. An optimal tool trajectory with an optimal time and film quantity deviation is generated.Experiments are performed to verify the generated trajectory. The results show that the developed optimal tool planning algorithm could be applied to generate optimal tool trajectories.

Abstract: This paper presents the research findings of identification method for LPV models with two scheduling variables using transition test. The LPV model is parameterized as blended linear models, which is also called as multi-model structure. Linear weighting functions are used as the local model weights and the Gauss-Newton method is used to optimize the nonlinear LPV model parameters. Usefulness of the method is verified by modeling a high purity distillation column, the case study shows that the multi-model LPV models can yield a better model accuracy with respect to simulation outputs. The identification method proposed in this paper can be used in batch process identification.

Abstract: For implementing excellent control to nonlinear systems with long time-delay, a new intelligent control algorithm of cloud models was proposed. This algorithm presents the uncertainty reasoning of control rules based on cloud model. This model is a new method for transformation between qualitative and quantitative in the knowledge. The intelligent controller uses the theory of the fuzzy control, designing a variant dimension cloud model intelligent controller containing a one-dimension cloud model controller to eliminate steady-state error, which is used for thermal power plant boiler superheated steam temperature. It also shows that the cloud controller is simple and easy, directly perceived through the senses, and has strong robustness, better control performance, and good application.

Abstract: An new control strategy for interior permanent magnet synchronous machine (IPMSM) which is the most popular motor used in HEV is proposed and investigated, which features is increasing the reference flux weakening voltage to improve efficiency in flux weakening region . Modeling results show that the proposed strategy can achieve the same dynamic and steady state torque performance with higher reference flux weakening voltage, which means higher efficiency.

Abstract: This paper describes robot soccer, it studies the organizational model of the soccer robot, and centralized decision-making system is analyzed. With the deep research of the three-layered hierarchical decision-making model on the basis of decision-making, management and executive, the paper achieves the basic control of the robot.

Abstract: This paper states the control principle of the three-channel hydraulic loading test bench for automobile steering gear test. The test bench model considering inertial force is constructed and simulated. The Integral-Separated PID control algorithm is adopted to optimize control effect and the respond features of the input signals are analyzed. The simulation results show that the system works steadily, the accuracy of synchronization control is better and the tracking control achieves well.

Abstract: In this project, Labview programming language is used to design the control system of an elevator for multiple users. Based on the use of visual programming by Labview, the project establishes a graphical soft panel, instead of traditional instrument control panel and programming interface, to run logical updates and operation maintenance easily. Labview is corresponding to the ports of many companies instruments, which makes easy to regulate and control relevant operations. The use of modular design in the project increases systems stability and avoids errors caused by using of mixed data types.

Abstract: This paper presents the development of lateral control system for intelligent vehicle based on magnetic markers guidance. A lateral controller based on fuzzy logic is designed for intelligent vehicle that is non-linear controlled object. Simulation results show that the proposed control algorithm can ensure tracking reference path of intelligent vehicles accurately. The function of the system is finally verified by real vehicle experiment and the results show that the control system has high control accuracy, real-time performance and good reliability at an acceptable vehicle speed.

Abstract: A new method for rotation mode platform inertial navigation initial alignment is presented. This method is based on sinusoidal varying speed rotation mode and thus makes the factors decoupling in real time. In this way it makes the estimation process much faster and more precise compared with previous methods. The error equations of a rotating platform inertial navigation system are introduced. We give detailed description and analysis of this method. Simulation is done based on this new method. Analysis and simulation results indicate that this method makes the platform system initial alignment achieved desired results in 207.5 seconds, while the traditional methods takes 388.1 seconds. The accuracy also has highly improved. The standard deviation of gyroscope drift decreased from 0.03°/h to 0.005°/h. This provides a theoretical foundation for platform inertial navigation system rotating mode during actual experiment and application.