Applied Mechanics and Materials Vols. 543-547

Abstract: For a clustering algorithm in two-dimension spatial data, the Adaptive Resonance Theory exists not only the shortcomings of pattern drift and vector module of information missing, but also difficultly adapts to spatial data clustering which is irregular distribution. A Tree-ART2 network model was proposed based on the above situation. It retains the memory of old model which maintains the constraint of spatial distance by learning and adjusting LTM pattern and amplitude information of vector. Meanwhile, introducing tree structure to the model can reduce the subjective requirement of vigilance parameter and decrease the occurrence of pattern mixing. It is showed that TART2 network has higher plasticity and adaptability through compared experiments.

Abstract: The data mining technology is one of the most commonly used computer data analysis method. This paper establishes finite difference model of the data mining process using forward first difference, backward first difference and central difference and verifies the feasibility of the algorithm through Matlab software. In order to verify the suitability of the algorithm, the paper takes modeling and meshing of Proe mechanical engineering software for example and establishes the model for the yankee dryer. It achieves the meshing of complex dryer model and gets the better unstructured tetrahedral mesh. It also introduces grid to the computer mechanics simulation software and concludes simulation stress distribution of dryer through the calculation. At last, this paper applies the finite difference data mining algorithms to the research of the development of in local sports single associations. This paper concludes the characteristic curve of the development of local sports federations which realizes the application of computer data mining in the analysis of sports data.

Abstract: Computer numerical modeling is the first step of virtual simulation, but for many models, numerical modeling process is very complex, the workload is huge, we must adopt corresponding algorithm to optimize modeling process. In this paper we introduce the idea of computer PCA in the finite element modeling process, and establish finite element partial differential equation of PCA, which greatly reduces the complexity of the modeling process. We establish a complex cam model by UG software, and verify the reliability of the model and algorithm. At the end of this paper, we apply the finite element computer PCA analysis method to the evaluate sports resources, and establish a new type of city sports resources weight ratio model for Pan Yang Hu area, and obtain the characteristic response curve. It provides computer technology support for the new city sports resources construction and evaluation process.

Abstract: Existing numerical grid generation based on Surpac block model is inefficient when the grid quantity is large. This article obtains from the existing methods, summarizes the complete process, and adds the key details of it. By setting simpler nodes condensation algorithm, improving the problem of low conversion efficiency caused by the too large node number, achieving the fast effective conversion of Surpac block model to FLAC3D model by using C language programming. This new method has been used in building rock burst hazard analysis model of Ling-Long gold mine, which proves this modeling method is feasible and effective.

Abstract: Estimating the advantages and disadvantages of Matlab/Simulink, Visual Basic (VB) and AutoCAD software, the model of the working process of internal combustion (IC) engine was built based on Matlab/Simulink, and the drawing programs for engine structure were written with the parametric design language AutoLISP. A user-friendly VB interface of inputting parameter was established, realizing VB coupled with AutoCAD and Matlab/Simulink software. Calling the AutoLISP drawing program nested in the AutoCAD and Matlab/Simulink software via VB, integration of the simulation and analysis of the engine and the CAD drawing of its body can be achieved. Its more efficient to analyze the performance and optimize the structure parameters of engines.

Abstract: Aiming at the characters and requirements of spacecraft design, simulation and test, The test-bed framework was studied in this paper. The framework architecture employ the Data Distribute Service (DDS) to provide communications abstractions and reduce software interface complexity. The time management strategy was studied to keep synchronic of all components. The CAN bus interface was designed to integrate the CAN bus components. The framework will allow rapid-prototyping of high-fidelity simulations of spacecraft during their early project phases, and help reduce the effort, time and expanse to evaluate the performance.

Abstract: Modern gasoline engine spark advanced angle calibration is a multi-objective optimization problem, commonly used genetic algorithm to solve this problem. However, the traditional genetic algorithm tends to local optimum probability of a larger, easy to fall into premature, this defect is likely to cause the solution is not the optimal solution set. To address this issue, the non-dominated sorting genetic algorithm II for the spark advanced angle optimization, through crowding distance maintain the diversity, overcome super individuals overgrowth, improved genetic algorithm post search results. Experimental results show the effectiveness of this method.

Abstract: The Infineon AUDO FUTURE series micro-controller is widely applied in automobile power system, to solve the online programming problem, paper designed online upgrade system for Infineon AUDO FUTURE series MCU based on CAN Bus, which uses IAP technique to realize triggering bootloader without adding any hardware. Since all ECUs in vehicle are connected to CAN Bus which use ISO15765 protocol to communicate with each other, the entire download process paper designed follow the ISO15765 protocol. This system is suitable for any chip of this series and paper test it based on TC1767. The experimental result shows that this system has strong reliability with high efficiency.

Abstract: This paper issued a new scheme that passing the configuration information of SRIO to FPGA through EMIF interface, so that two FPGAs can transfer data to each other dynamically for different ways of data interaction. In a word, this paper provides a flexible high-speed transmission scheme for the TD-LTE RF conformance test instrument development.

Abstract: When membership queries are evaluated in a set, the performance can be improved by a Bloom filter which is a space-efficient probabilistic data structure. According to its space-efficient character, Bloom Filter presented to address the load balancing problem for streaming media information in Storm system which is free and open source distributed real time computation system. This method increases the server cluster availability by balancing the workloads among the servers within a cluster. Additionally, it improves real time system Storm efficiently in saving the data transmission time and reducing the calculation complexity.