Applied Mechanics and Materials Vols. 182-183

Abstract: A remote control simulation system is designed to resolve some problems in repairing diesel’s remote control system which makes good use of PLC in automation, combining the popular configuration technology. The system structure， hardware design and software design are introduced in shis paper. The results shows that the effect is remarkable in function replacement on the logic circuit module of the original system and can provide some intellectual support for upgrading the remote control system.

Abstract: The construction of towing operation training simulation system based on HLA (High Level Architecture) and Vega Prime interface is analysed. Designed the detailed object model for distribute simulation, and analyzed the responsibility of federation and each federate. The flow chart of simulation program which runs HLA and Vega Prime simultaneously was designed. In the multi thread program, the rendering cycle of Vega Prime is main thread and HLA thread for time cycle is embedded in. A multi-channel display system was also used to improve the visual effort of training system.

Abstract: Numerical manifold method (NMM) is based on the blocky theory which absorbed the advantages of finite element method based on the continuum mechanics, discontinuous deformation analysis method based on the non-continuum mechanics and analytic method. According to the finite covering technology of modern manifold analysis method, uniform solving format on continuous-non-continuous problems is established by taking the continuous and discontinuous cover function which can be used for the numerical simulation of large deformation and continuous-discontinuous deformation. The calculation program is worked out based on the method above and it is applied to the actual project.

Abstract: A multi-objective robust decentralized control method is proposed for the interconnected fuzzy singularly perturbed models. Such decentralized controller can guarantee the whole closed-loop system is asymptotically stable even when the multi-time-scale subsystems are interactional. Besides, the disturbance attenuation performance, dynamic performance and control amplitude can be optimized synthetically. The simulations illustrate the effectiveness of the proposed method.

Abstract: Automatic license plate recognition system is an intelligent surveillance system in traffic management and toll. Various image restoration methods have been proposed, but they are deficient in function approximation. Neural network has its unique advantages for its large-scale nonlinear dynamic characteristic, parallelism calculation, high robustness, strong capacity of self-adaptive, self-organization and self-learning. A novel license plate preprocessing technique based on fuzzy neural network has been proposed here, which is verified to be effective by the experiments.

Abstract: Inverted Pendulum is a typical system with multivariate, nonlinear system. Research on inverted pendulum can be attributed to research on nonlinear multivariate absolutely unstable system. Its control methods and ideas have an extensive usage. In this paper, a fuzzy controller is introduced to control single inverted pendulum system, and the performance characteristic of this system is also introduced. The control result of the inverted pendulum is good, the oscillation is small. Research result indicated that the control performance of fuzzy control is to select good membership function and discourse domain.

Abstract: This paper presents a multi-signal testing system based on ARM & FPGA, Paper discussed system structure design, including hardware and software design. The hardware uses FPGA to expand ports and USB2.0 interface chip CY7C68013 for signals data transmission; software including system firmware, driver, user applications the three-parts design. The design of the system meet requirements, its high performance, low cost and can be widely used in signal analysis, monitoring and other fields.

Abstract: The mathematical model in the two-phase synchronous rotating coordinate system of three-phase voltage PWM rectifier is set up. A novel and fast algorithm of Space Vector Pulse Modulation (SVPWM) for three- phase voltage rectifier is adopted in this paper. The MATLAB/SIMULINK simulation model is presented based on the mathematical model of PWM rectifier. The simulation results illustrate that this design scheme has some value for practical due to its merits of pollution-free, power factor regulation and bin-directional power flow.

Abstract: In this paper, we study a complete -Riemannian manifold whose curvature bounded from below. Let be a compact totally geodesic submanifold of . Then, for any , we can make use of the first variation formula and the second variation formula of distance to prove that is bounded.

Abstract: The biogas generator temperature control is very important to the temperature of the biogas generator for effective control, So the temperature must be monitored. Pre-estimated by measuring the temperature and fast temperature control is the most effective means. In this paper, using time series analysis method, we establish three prediction models, which are namely autoregressive model, moving average model, hybrid model. By comparison of three models, the final choice to predict the temperature of the biogas generator is mixed model analysis of time series. The test error is very small, indicating that the method has some practical value.