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Reach ability graph is a fundamental tool for analysis of Petri Net models of discrete event dynamic systems. However, the applicability of reach ability graph is limited to finding different states that are reachable from an initial state. This paper presents a new extended reach ability graph that is much more useful: the extended reach ability graph can be used for not only finding the states that...
This paper outlines the application of a special Environmental Management Information System (EMIS) that combines discrete event simulation (DES) and life cycle analysis (LCA) in addition to material flow analysis as an integrated part of the simulation software. The motivation behind the combination of these different techniques is to close the gap between identifying only parts of the life cycle,...
Based on the problems appeared in some infantry fighting vehicle's actual training, this paper combines the advantages of virtual maintenance, proceeds from aspect of system engineering, takes demand of actual training into account, uses Solidworks, 3ds max and EON synthetically, chooses the form of desktop, set up a virtual maintenance training system of the equipment.
Although many software engineering (SE) and computer science (CS) texts use case studies to explain the different concepts, these case studies tend to focus on a specific subject such as object oriented design and implementation or requirements analysis and specification. In addition, these case studies usually lack instructor guidelines on how to use the material in teaching these concepts. The Digital...
Based on the development of Econometrics and the current teaching situation, the paper demonstrates the needs for case studies, and points out the conditions for case studies. In addition, problems have been addressed, which should be avoided to in the specific organization and implementation process.
The counterfeit and fake products have been rampant increasingly. It has not only affected the quality of people's lives and the stability of our society, but also hampers the development of our country's economy. How to deal with this phenomenon has became a concerning problem in the process of economic mechanism switch. This article has presented a discussion among kind of communities in market...
In this paper, the 3-D model of front sub-frame of a car is established by using software CATIA. And further according to the finite element elementary theory, by using the software Hypermesh and the software MSC Patran, the finite element model of the sub-frame is established, and then the finite element stress analysis is carried on by using the MSC Nastran software. Based on the results of stress...
This paper analyzes the concept of components in Software Engineering (SE) through a sociotechnical approach. Based on a ranking of critical elements related to Component-Based SE, a study with experts concludes that components are potential assets in local and collaborative scenarios. This fact motivated an analysis of a value-based component market approach called Brechó-VCM considering its adherence...
Determination of project completion time is crucial for considerable number of projects, especially for the time-terminated ones. Experience showed that it is not enough to use standard network planning methods (CPM/PERT) only, particularly for stochastic projects like research and development ones. In this paper, the project time determination is based on superposition for defined network diagram...
An evaluation model of plastic forming process and forming quality of metal tubes is proposed by considering restrictions of manufacturing resource, geometry and forming quality. Three key technologies including evaluation index system, modeling of evaluation knowledge and evaluation workflow are studied in detail. Simulation method of bending process is introduced to study the machining character...
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...
As one of the most important means and trends of modern products' design and serialization, parametric modeling is beneficial to the building and management of products' part library so as to monitor the cost. Flexure hinges are the essential kinematic pair in compliant mechanism, realizing motion and transmission of power. The design of flexure hinges is the key to that of compliant mechanism. This...
This article presents the first results of expert interviews conducted within the project MoKoM funded by the German Research Foundation (DFG). These are intended to refine our first theoretically derived competence model comprising competencies in the domains of informatics systems and modeling. In this context, the question arises, which software engineering workflows could be relevant for software...
The tender offer cost of IT project is the basis of IT project valuation. This paper analyzes the tender offer cost of IT project, as well as the composition of the tender offer cost. The focus of IT project is on the cost of the tender offer, and it includes the cost during IT project's tender offer, the cost of the measures of IT project, the cost of IT project subcontractor, and IT project's imprest...
This paper outlines the application of a special Environmental Management Information System (EMIS) as combination of discrete event simulation with ecological material flow analysis for a selected production process. The software tool serves as decision aid for economic as well as ecological business problems. A combined view of the material flow as well as job-oriented view on an enterprise allows...
The tests date to characterize the rubber material constants as well as the hyperelastic material stability is discussed. The rubber material of engine mount is analyzed based on different forms of strain energy potentials using finite element analysis software ABAQUS. The method of using test data to calibrate material coefficients is obtained. Both of the hyperelastic constitutive law and the viscoelasticity...
In allusion to the reliability, which exists in the parametric design and optimizing process of the single hydraulic prop, this paper presents the new method in comparison with the traditional calculating and checking method for the reliability. The geometry model of the hydraulic prop is built firstly based on the 3D software, then analyzed and optimized by the finite element software - ANSYS. Results...
In this paper some linguistic aspects of communication software interface localization have been covered and discourse analysis approach to the solution of localization problems for the VOIP IM program Raketu and network assistant messenger have been suggested.
In this paper, cantilever support system of foundation pit is analyzed by ANSYS which is the large scale general software of finite element analysis, the stress and displacement of foundation pit and support system are available from ANSYS. According to a foundation pit project in Handan, on the basis of the finite element analysis results, traditional method is adopted to design and calculate the...
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