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The paper presents the detailed finite element model of certain car body, which is reasonably simplified according to actual loading conditions. First, frequency response is analyzed by means of modal method with software MSC. Nastran, secondly, the correlation of spectrum loading is analyzed, by the treatment of practical loading; then the fatigue life analysis of correlated and uncorrelated loading...
This paper presents a dynamic model for analysing the vertical vibration response characteristics of continuous welded rail (CWR) track under longitudinal temperature stress, and reveals that the parameters in the model, such as the wear of the rail, rail types, the sleeper unsupported spacing, have great influences on the relationship between the track vertical vibration characteristics and the longitudinal...
This paper highlights software reuse technology and classifies. The emphasis of the paper presents the model of component and Studies COTS. As the result, this paper points out component reuse is fine granularity's reuse in construction software system. But during building “system in system” process, it's impossible that developers do everything starting from scratch. COTS (Commercial off the shelf)...
Article will introduce the sensitivity into frame optimization analysis of the heavy-duty truck. Established the frame finite element model in a certain type of heavy truck, determined the boundary conditions and loads, and verified the electrical test. Select the frame rails and the beams as a sensitivity analysis of the object. According to the results of the analysis to select the design variables,...
More and more software organizations are developing software projects under the control of software process. To solve the lack of software process support in current requirements management (RM), an RM methodology related with software process was analyzed. By the definition of RM process and requirement change management, the combination of RM functions depending on process was expressed. An RM tool...
To improve the intelligent reconstruction ability of manufacturing system, and quicken the development and manufacture of the products, a networked manufacturing oriented integrated control model is proposed based on the deeply analysis of networked integrated control for enterprise. The inside and outside integrated control of the enterprise is implemented by Common Object Request Broker Architecture...
SCADA is an acronym for Supervisory Control and Data Acquisition. SCADA systems are used to monitor and control a plant or equipment in industries such as telecommunications, water and waste control, energy. A typical SCADA system comprises of I/O signal hardware, Controllers, software, network & communication. Supervisory control and data acquisition system is a system in which message or commands...
A new method is designed for military software pricing, which is enlightened from binomial tree option pricing model. Firstly, it is constructed about the military software pricing model based on binomial tree. Secondly, computation method is shown later. Thirdly, the applicability of this computation method is demonstrated by an example. According to the calculation results, it is found out that...
The battery volume of mobile terminals is limited and in most case it cannot rely on the supplying of external power. Therefore, discontinuous reception mechanism (DRX), a kind of power saving mechanism in mobile communication is introduced in order to reduce the power consumption of battery. In this paper, we discuss and show DRX parameters and features in TD-LTE. By establishing TD-LTE DRX model...
This paper based on the principle of value chain and competition theory from professor Michael Porter. According to analysing the components of TD-LTE industry value chains as well as their functions and competition status, contrasting the difference between TD-SCDMA value chains and TD-LTE value chains, we get the conclusion of that network situation, service solutions and UE performance will determine...
In order to optimize the stiffness of car body, Latin design of experiment method is taken to design sample for 300 times. Fitting approximate models of response surfaces with moving least squares methodology are inducted in torsion stiffness optimization, in which the disadvantage of lower precision with least squares methodology is avoided and the relative error percentage is less than 3%. Adaptive...
this paper shows the design and implementation of a video capturing and processing system, which can collect plate-profile information and process image in the spatial domain. Strategy of buffer storage is used in the collecting part; read and write two SRAM at the same time to improve the data throughput. In the processing part using Synchronous FIFO to implement sliding window whose function is...
There are some attributes in software architecture which can not be assigned to a specific component or layer. So one of the main concerns in architectural designing is making use of these attributes. It is tried to separate these cross cutting concerns from software architecture by presenting a model in this article. In this model not only the cross cutting concerns are separated from the architecture,...
This paper presents a method to solve the correspondence problem in matching the stereo image using Sum of Absolute Differences (SAD) algorithm. The computer vision application in this paper is using an autonomous vehicle which has a stereo pair on top of it. The estimation of range is using curve fitting tool (cftool) for each detected object or obstacles. This tool is provided by Matlab software...
Products with new features need to be introduced on the market in a rapid pace and organizations need to speed up their development process. The ordinary way to develop products, one at a time, is not time efficient enough and is costly. Reuse has been suggested as a solution, but to achieve effective reuse within an organization a planned and proactive effort must be used. Product lines are the most...
In order to solve the problem of rigidity in IT architecture and the existence of heterogeneous information islands within most enterprises, a novel service-oriented IT architecture-SOA (service-oriented architecture)emerges. The realization of SOA is embodied in the accomplishments of various IT applicable functions in the form of service encapsulation and the interconnection and interoperation of...
Software development methods aim at solving the software crisis. Many presented methods gain reputations under special application environments. There are so many kinds of methods that developers are troubled when choosing the most suitable one. This article presents a pervasive software development method aiming at helping developers deal with the trouble. The pervasive method advocates logicality,...
Because of the unique characteristics of Single-Chip Microcomputer, some students find it is very hard to learn it well at the first sight. Especially the materials and books used nowadays are often focusing too much on the structure, system and function of the Micro-Controller Unit (MCU for short). However, there exists an extremely shortage on the experiment content and technique. Some suggestions...
In order to visualize the satellite navigation simulation system, the framework of a distributed satellite navigation simulation system composed of multi-platform systems was analyzed. The composition and the functions of the satellite navigation simulation system visualization software were illuminated. Based on MFC, presented the designing and realizing methods of the system information display...
The regularity for change of human brain after consuming alcohol will be discussed in this paper. Four right-handed, no-smoking healthy subjects took part in the study. They were instructed to wear an EEG cap with 21 electrodes placed according to the international 10/20 system and drink. The EEG signal was recorded at the same time and then analyzed by using power spectral density(PSD) and system...
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