A reasonable encoding of component parts of product is the basis of implementing informationization for hoisting machinery enterprise. Aimed at the inefficiency of the current encoding system of hoisting machinery, a ...
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ISBN:
(纸本)9783642104299
A reasonable encoding of component parts of product is the basis of implementing informationization for hoisting machinery enterprise. Aimed at the inefficiency of the current encoding system of hoisting machinery, a new encoding method with both classification-code and identification-code based PDM is presented in this paper. And an encoding system based on Client/Server pattern was developed. The feasibility and efficiency of this encoding system is proved in the production.
A new kind of method of evaluating cylindricity error, which named as Mesh Searching Algorithm (MSA), has been presented in this paper. The optimization method and linearization method usually used are not be adopted ...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
A new kind of method of evaluating cylindricity error, which named as Mesh Searching Algorithm (MSA), has been presented in this paper. The optimization method and linearization method usually used are not be adopted in this algorithm. The value of cylindricity error can be obtained through calling repeatedly the formula for distance between the point and straight line and the simple judgement using this algorithm. The principle and step of using the algorithm to solve the cylindricity error is detailed described. The simulation reveals that the cylindricity error can be evaluated effectually and accurately by using this method.
In this paper we introduce an experiment with two methods for evaluating similarity of Web pages. The results of these methods can be used in different ways for the reordering and clustering a Web page set. Both of th...
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ISBN:
(纸本)9783642106866
In this paper we introduce an experiment with two methods for evaluating similarity of Web pages. The results of these methods can be used in different ways for the reordering and clustering a Web page set. Both of these methods belong to the field of Web content mining. The first method is purely focused on the visual similarity of Web pages. This method segments Web pages and compares their layouts based on image processing and graph matching. The second method is based on detecting of objects that result from the user point of view on the Web page. The similarity of Web pages is measured as an object match on the analyzed Web pages.
In this paper a framework for Extended Digital Manufacturing Systems (EDMS) is presented. EDMS aim at an integrated environment for products, production systems, and business processes. The reference model of EDMS con...
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ISBN:
(纸本)9783642104299
In this paper a framework for Extended Digital Manufacturing Systems (EDMS) is presented. EDMS aim at an integrated environment for products, production systems, and business processes. The reference model of EDMS consists of manufacturing entities with different roles and their related domains and activities. The entities are internally constructed from digital, virtual, real, and communication parts in conjunction with human knowledge and skills. The main areas of EDMS are modelling, simulation, analysis, and change management. The integrated activities of EDMS are discussed from the viewpoints of augmented intelligence and integrated collaboration activities. The theoretical application areas of the past, present, and future and the process from ideas to innovative solutions are presented. A real-life example of a laboratory demonstration of a robot manufacturing cell in which several aspects of the EDMS framework are utilised is introduced.
The paper builds the whole vehicle dynamical model using ADAMS/Car software, and the Hydraulic System and ABS fuzzy control model are built using MATLAB/Simulink, both of the above construct the co-simulation model, u...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
The paper builds the whole vehicle dynamical model using ADAMS/Car software, and the Hydraulic System and ABS fuzzy control model are built using MATLAB/Simulink, both of the above construct the co-simulation model, under the initial vehicle velocities in 60km/h and on high adhesion coefficient roads using fuzzy control algorithm are analyzed. Fuzzy control algorithm can get better effects as the results of simulation test shows, which have reference to develop the practical electronic Control unit based on fuzzy control algorithm.
Fluctuations in demand patterns and products' mixes, driven by continuous changes in customer requirements, are inducing significant changes on the operations of manufacturing organisations. How to respond to such...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
Fluctuations in demand patterns and products' mixes, driven by continuous changes in customer requirements, are inducing significant changes on the operations of manufacturing organisations. How to respond to such changes rapidly and at minimum cost constitutes a major challenge for manufacturers. The DIMS project (Dynamically Integrated Manufacturing Systems) has developed an agent-based approach that enables manufacturing systems to be modelled using multi-agent systems such that optimal and timely responses to changes are generated from the interactions taking place within the multi-agents systems. This approach also incorporates a distributed discrete event simulation mechanism that enables 'what-if' system configurations that have been generated through agent interactions to be evaluated dynamically for system restructure. This paper presents the approach with particular focus on the distributed simulation mechanism.
In this paper, we present a Multi Agent System aimed to support an user on the realization of different leisure and tourist activities in a city. The system integrates agents that cooperate to dynamically capture the ...
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ISBN:
(纸本)9783642124327
In this paper, we present a Multi Agent System aimed to support an user on the realization of different leisure and tourist activities in a city. The system integrates agents that cooperate to dynamically capture the user profile and to obtain a list of suitable and satisfactory activities for the user, by using the experience acquired through the interaction of the user and similar users with the system. Moreover, the system is also able to generate a time schedule of the list of recommended activities thus forming a real activity plan. This paper focuses on the architecture and functional behaviour of our system.
Lean Machine Tool is the one which meets all customer's requirements, just enough without being equipped with any unnecessary features or accessories. In acquiring a new machine tool it is neither easy nor straigh...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
Lean Machine Tool is the one which meets all customer's requirements, just enough without being equipped with any unnecessary features or accessories. In acquiring a new machine tool it is neither easy nor straightforward to decide if a given accessory is desirable or not. Addition of any accessory would affect product cost, performance, reliability, and often in conflicting ways. Decision to select an accessory for a given manufacturing situation, requires large information from manufacturer and end user, apart from engineering judgment and prior experience. The present work is an attempt to develop a methodology for making such decisions and to automate the same in the form of an expert system with inputs from both users and manufacturers of accessories. Based on the proposed methodology, a case study is presented to decide an accessory namely automatic loader/unloader for a given machining application.
Modeling of design processes is one of key issues of the management of complex product development because of its role in sustaining efficient and optimal execution of the design processes. This paper proposes a new m...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
Modeling of design processes is one of key issues of the management of complex product development because of its role in sustaining efficient and optimal execution of the design processes. This paper proposes a new methodology for modeling of design processes. The methodology includes two steps. The first step is to use an extended activity flowchart to perform predefinition of the design process. The second step is to transform the flowchart into an AND/OR tree structure. Based on the modeling, a new depth-first-search-based algorithm is presented for traversing the AND/OR tree structure, and performing real-time control of the design process. A special design process modeling and controlling tool is developed, and through running an example with the tool, the methodology is illustrated.
Reuse, remanufacturing and recycling have been recognized as the main preferred product end-of-life strategies in terms of sustainability currently. Those three end-of-life strategies require distinct processes, exper...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
Reuse, remanufacturing and recycling have been recognized as the main preferred product end-of-life strategies in terms of sustainability currently. Those three end-of-life strategies require distinct processes, expertises and management respectively during product end-of-life phase. Therefore, it is imperative to achieve each end-of-life strategy separately and efficiently to achieve sustainability. Nowadays, products are characterized by high variety of constituent components with diverse appropriate end-of-life strategies. Ideally, if components with the same end-of-life strategy can be grouped in the same module, the overall sustainability of the entire product can be significantly enhanced by means of efficient and appropriate handling of end-of-life products. Moreover, all efforts should be concentrated on product design phase. To this end, this paper intends to propose a systematic approach assisting product designers during product design phase to facilitate and promote appropriate reuse, remanufacturing and recycling of the entire end-of-life product holistically to achieve sustainability.
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