Twin Process Model Driven Machining Quality Optimization for Complex Parts

Author(s):  
Jingjing Li ◽  
Guanghui Zhou ◽  
Chao Zhang
Author(s):  
W. Du ◽  
H. Fan ◽  
J. Li ◽  
H. Wang

A lot of work has been done on the geospatial service composition to support advanced processing, spatial calculation, and invoking of heterogeneous data. However, the quality of service chain is rarely considered and the process model cannot be reused. A modeldriven way of geospatial web service composition is proposed in this work, the service composition is treated as an optimization problem by <i>GwcsFlow</i> model and dynamic binding mechanism. The case of facility location analysis is provided to demonstrate the improvements in geospatial service composition through optimization algorithms.


Author(s):  
Samia Nasiri ◽  
Yassine Rhazali ◽  
Mohammed Lahmer

Model-driven architecture (MDA) is an alternative approach of software engineering that allows an automatic transformation from business process model to code model. In MDA there are two transformation kinds: transformation from computing independent model (CIM) to platform independent model (PIM) and transformation from PIM to platform specific model (PSM). In this chapter, the authors based on CIM to PIM transformation. This transformation is done by developing a platform that generates class diagram, presented in XMI file, from specifications that are presented in user stories, which are written in natural language (English). They used a natural language processing (NLP) tool named “Stanford Core NLP” for extracting of the object-oriented design elements. The approach was validated by focusing on two case studies: firstly, comparing the results with the results other researchers; and secondly, comparing the results with the results obtained manually. The benefits of the approach are aligned with agile methods goals.


2014 ◽  
Vol 926-930 ◽  
pp. 3224-3227
Author(s):  
H.L. Zhang ◽  
W.D. Wu ◽  
X.F. Huang ◽  
J.S. Xia

The generation flow of three-dimensional (3-D) process model used for complex parts is the key in the 3-D process technology. The technology of 3-D process model generation flow is talked about, including the definition of 3-D process model, information acquisition of manufacturing feature and process information, etc. The key characteristics of 3-D process technology that the matching manufacturing feature with process information and 3-D process scheme analysis are researched. At last, reversely suppression of manufacturing feature is used for solving the generation of 3-D process model.


1998 ◽  
Vol 120 (2) ◽  
pp. 213-221 ◽  
Author(s):  
H. El Mounayri ◽  
A. D. Spence ◽  
M. A. Elbestawi

A generic solid modeller based milling process simulation system is developed for 3-axis milling of complex parts. Parts are described using a boundary representation solid model, and cutting edges are fitted with cubic Be´zier curves. For every completed tool path (i.e., one NC block), the tool swept volume is generated and intersected with the part, yielding the corresponding removed material volume. The tool cutting edges are then intersected with that volume to produce the tool-part immersion geometry. The mechanistic milling process model produces an accurate simulation of cutting forces, torque and power. Modelling of tool and tool holder dynamics is included. The system is based on a generic procedure for extracting geometric data required to accurately simulate milling of complex parts. Any tool shape can be represented, and extension to 4- and 5-axis machining is straightforward. Related processes such as turning and drilling can be modelled in a similar way. The capability of the system is demonstrated experimentally for ball end milling.


2013 ◽  
Vol 347-350 ◽  
pp. 3460-3464
Author(s):  
Hong Hui Huang ◽  
Ling Yun Wang

This paper takes UGNX6.0 as the development platform, by using its UG/KF development tools, fusing feature and knowledge together, so as to realize the process associated with the geometric design knowledge and stamping process design. Based on the features of stamping process, the classification of stamping process knowledge has been studied. With the object-oriented method, the rule-based and instance-based technology for expressing and acquiring the stamping process knowledge is discussed. Based on this, the stamping process model driven by knowledge has been established. It showed the importance of the CAD technology in designing of relatively complex progressive dies. Based on the knowledge engineering process designed, the degree of intelligence stampings process design has been enhanced, design quality and efficiency has been improved, and the dependence of the process design experience of designers has been reduced.


2014 ◽  
Vol 11 (4) ◽  
pp. 1515-1535 ◽  
Author(s):  
Tomas Skersys ◽  
Kestutis Kapocius ◽  
Rimantas Butleris ◽  
Tomas Danikauskas

Approaches for the analysis and specification of business vocabularies and rules are relevant topics in both Business Process Management and Information Systems Development disciplines. However, in common practice of Information Systems Development, the Business modeling activities still are of mostly empiric nature. In this paper, aspects of the approach for semi-automatic extraction of business vocabularies (BV) from business process models (BPM) are presented. The approach is based on novel business modeling-level OMG standards ?Business Process Model and Notation? (BPMN) and ?Semantics for Business Vocabularies and Business Rules? (SBVR), thus contributing to OMG?s vision of Model-Driven Architecture (MDA) and to model-driven development in general. The discussed extraction approach is evaluated against fully-automatic BPMN BPM ? SBVR BV transformation that has been developed in parallel to the presented work.


2020 ◽  
Vol 23 (1) ◽  
Author(s):  
Daniel Calegari ◽  
Andrea Delgado ◽  
Leonel Peña

To achieve a business objective, organizations may require variants of the same business process that depend on the context in which they are enacted. Several proposals have emerged to deal with the variability of business processes, focused on the modeling of a so-called process family. The proposals try to avoid modeling each variant separately, which implies duplication and maintenance of the common parts. Few of them also focus on automatically deriving a process variant from the definition of a process family, which is a central and complex task. One of these proposals is the Common Variability Language (CVL), which allows representing variability transparently in a host language. This article aims to explore the use of CVL together with the Business Process Model and Notation (BPMN 2.0) for modeling business process families, and the use of Model-Driven Engineering (MDE) techniques for the automatic generation of process variants. We also present a graphical tool supporting these ideas and a qualitative evaluation of the variability approach by using the VIVACE framework.


Author(s):  
Meryem Fakhouri Amr ◽  
Nezha Benmoussa ◽  
Khalifa Mansouri ◽  
Mohammed Qbadou

<p>Model-Driven Engineering (MDE) plays a very important role in improving the development of complex systems. It focuses more on modeling than on classical programming. In this sense, model transformation is at the heart of the Model Driven Architecture (MDA) approach which advocates the use of models throughout the software development cycle on two levels. The first being the transformation of the Computing Independent Model (CIM) into the Platform Independent Model (PIM) and the second concerning the transformation of PIM into Platform Specific Model (PSM).</p><p>The latter has been dealt with in the majority of research works while the transformation from CIM to PIM which represents the highest level is rarely discussed in research topics. It is for this reason and in the spirit of improving the process of transforming the CIM model into PIM according to the MDA approach, that we have developed this research work in order to propose a new method and new transformation rules for optimization of the business process "COVID-19 patient management". Our contribution consists of the semi-automatic transformation of the CIM model presented by the BPMN (Business Process Model and Notation) source model into a PIM target model presented by a class diagram by using a set of transformation and correspondence rules that we performed manually using the language ATL (Atlas Transformation Language). This automatic transformation of the two source and target models is provided by the Eclipse Modeling Framework (EMF) which executes the transformation rules described manually in ATL and generates the PIM target model as an XMI (XML Metadata Interchange) file representing the target class diagram.</p>


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