Download or read book Stream of Variation Modeling and Analysis for Multistage Manufacturing Processes written by Jianjun Shi and published by CRC Press. This book was released on 2006-12-04 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variability arises in multistage manufacturing processes (MMPs) from a variety of sources. Variation reduction demands data fusion from product/process design, manufacturing process data, and quality measurement. Statistical process control (SPC), with a focus on quality data alone, only tells half of the story and is a passive method, taking corre

Download or read book Modeling and Analysis of Stream of variation in Multistage Manufacturing Processes written by Yu Ding and published by . This book was released on 2001 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Variation Modeling Analysis and Control for Multistage Wafer Manufacturing Processes written by Ran Jin and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Geometric quality variables of wafers, such as BOW and WARP, are critical in their applications. A large variation of these quality variables reduces the number of conforming products in the downstream production. Therefore, it is important to reduce the variation by variation modeling, analysis and control for multistage wafer manufacturing processes (MWMPs). First, an intermediate feedforward control strategy is developed to adjust and update the control actions based on the online measurements of intermediate wafer quality measurements. The control performance is evaluated in a MWMP to transform ingots into polished wafers. However, in a complex multistage manufacturing process, the quality variables may have nonlinear relationship with the parameters of the predictors. In this case, piecewise linear regression tree (PLRT) models are used to address nonlinear relationships in MWMP to improve the model prediction performance. The obtained PLRT model is further reconfigured to be complied with the physical layout of the MWMP for feedforward control purposes. The procedure and effectiveness of the proposed method is shown in a case study of a MWMP. Furthermore, as the geometric profiles and quality variables are important quality features for a wafer, fast and accurate measurements of those features are crucial for variation reduction and feedforward control. A sequential measurement strategy is proposed to reduce the number of samples measured in a wafer, yet provide adequate accuracy for the quality feature estimation. A Gaussian process model is used to estimate the true profile of a wafer with improved sensing efficiency. Finally, we study the multistage multimode process monitoring problem. We propose to use PLRTs to inter-relate the variables in a multistage multimode process. A unified charting system is developed. We further study the run length distribution, and optimize the control chart system by considering the modeling uncertainties. Finally, we compare the proposed method with the risk adjustment type of control chart systems based on global regression models, for both simulation study and a wafer manufacturing process.

Download or read book Data driven Variation Modeling and Management with Application of Advanced Manufacturing Processes and Systems written by Jaesung Lee and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manufacturing variations refer to the uncertainties in the processes and inconsistency in the products produced. There have been increasing efforts to minimize the manufacturing variations, and reducing manufacturing variations in advanced manufacturing processes and systems is becoming more important. Advanced manufacturing processes and systems integrate manufacturing with innovative science and technologies and boost manufacturing efficiency and productivity. The integration with sensor technology now provides massive data, creating unprecedented research opportunities to model and analyze through data-driven models and methods. However, at the same time, advanced manufacturing processes and systems involve new critical challenges in modeling and managing the manufacturing variations. Many advanced manufacturing processes and systems have complex dynamics and transformation and multiple components involved, which create significant variations and uncertainties. However, physics-based models are often unavailable and often fail to address the uncertainties. This dissertation addresses multiple challenges in modeling and managing the manufacturing variations: (1) Variation source identification in multistage manufacturing systems: In multistage manufacturing systems, where multiple operations are performed in a series of stages (e.g., workstations), the variations produced from operations propagate to downstream measurements. In such systems, it is crucial to identify faulty operations with excessive variations among a large number of operations based on the quality measurements. We consider a common case where the measurements are not directly taken from the operations but from products in the downstream stage and the number of operations is much larger than the number of measurements. However, inferring underlying variations of numerous operations by limited measurements cause technical challenges in statistical inference. Therefore, we want to establish a statistical model that can identify faulty operations by leveraging the Engineering domain knowledge. Three types of domain knowledge are considered: a) The fact that faults occur sporadically; b) Practitioners' empirical knowledge of the faults occurrence frequency; c) Various tolerance levels on variations across operations. (2) Modeling inkjet printing manufacturing process: The inkjet printing manufacturing process involves significant random variations due to the complex physical and chemical dynamics of the nanomaterial pieces in the printed ink. Process variations create significant uncertainties in the manufactured product quality, but such uncertainties have not been studied. Therefore, it is crucial to model the randomness in the manufacturing outcome in terms of process parameters. Building upon the statistical model, this work further aims to establish a statistic that evaluates the manufacturing outcome quality, and ultimately identifies abnormal manufacturing outcomes. (3) Statistical calibration of underlying physical variable: In designing manufacturing processes and products, inferring the underlying physical input variable, called statistical calibration, is often needed. For example, by using the GFET nanosensor outputs, inferring the amount of the target substance in the environment is important. Furthermore, the uncertainty of the inferred variable needs to be quantified. However, due to significant process variations in manufacturing, the GFET nanosensor outputs involve significant random variations, and thus precise inferring is challenging. Specifically, random shapes and random locations of functional data need to be modeled for precise calibration. (4) Optimal parameter design through Bayesian optimization: It is very crucial to design manufacturing processes or products so that they have small quality variations while satisfying the overall quality (i.e., robust design). However, data are often costly to acquire especially in the designing stage. Furthermore, the underlying exact relationships between the design variables and the mean and variance of the outputs are not known and are in complex forms. Therefore, a sample efficient data-driven method to find the robust design needs to be established. To address these challenges listed above, four problems are investigated in this dissertation. (i) To build a special sparsity-enhanced Bayesian linear random-effects model to reflect Engineering domain knowledge. With the proposed model, Engineering domain knowledge on sparse faults with excessive variations is incorporated into the model, and the variation sources are successfully identified. (ii) To model the uncertainties in the inkjet printing manufacturing process in terms of physical process parameters. Building upon the proposed model, abnormal manufacturing outcomes are successfully identified. (iii) To establish a non-parametric model to characterize functional data with significant variations. The issue with random shapes and random shifting of functional data is addressed. (iv) To establish sample-efficient stochastic constrained optimization method for constrained robust parameter design. The proposed technique minimizes the variations while satisfying a constraint on the mean of the quality measurements by conducting a small number of experiments. Because the proposed methods are driven by data, these models and methods are very flexible and can be used to address many general problems in other manufacturing processes.

Download or read book Encyclopedia of Systems and Control written by John Baillieul and published by Springer. This book was released on 2015-07-29 with total page 1554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Systems and Control collects a broad range of short expository articles that describe the current state of the art in the central topics of control and systems engineering as well as in many of the related fields in which control is an enabling technology. The editors have assembled the most comprehensive reference possible, and this has been greatly facilitated by the publisher’s commitment continuously to publish updates to the articles as they become available in the future. Although control engineering is now a mature discipline, it remains an area in which there is a great deal of research activity, and as new developments in both theory and applications become available, they will be included in the online version of the encyclopedia. A carefully chosen team of leading authorities in the field has written the well over 250 articles that comprise the work. The topics range from basic principles of feedback in servomechanisms to advanced topics such as the control of Boolean networks and evolutionary game theory. Because the content has been selected to reflect both foundational importance as well as subjects that are of current interest to the research and practitioner communities, a broad readership that includes students, application engineers, and research scientists will find material that is of interest.

Download or read book Production Processes and Product Evolution in the Age of Disruption written by Francesco Gabriele Galizia and published by Springer Nature. This book was released on 2023-08-07 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes state-of-the-art and original research contributions from two well-established conferences, which collectively focus on the joint design, development, and management of products, advanced production systems, and business for sustainable customization and personalization. The book includes wide range of topics within these subjects, ranging from industrial success factors to original contributions within the field. The authors represent worldwide leading research institutions.

Download or read book Advances in Manufacturing Technology XXXII written by P. Thorvald and published by IOS Press. This book was released on 2018-08-29 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: The urgent need to keep pace with the accelerating globalization of manufacturing in the 21st century has produced rapid advancements in technology, research and innovation. This book presents the proceedings of the 16th International Conference on Manufacturing Research incorporating the 33nd National Conference on Manufacturing Research (ICMR 2018), held in Skövde, Sweden, in September 2018. The aim of the conference is to create a friendly and inclusive environment, bringing together researchers, academics and industrialists with practical and theoretical knowledge to share and discuss emerging trends and new challenges. The book is divided into 12 parts, covering areas such as the manufacturing process; robots; product design and development; smart manufacturing; and lean, among others. Covering both cutting-edge research and recent industrial applications, the book will appeal to all those with an interest in recent advances in manufacturing technology.

Download or read book Multimodal and Tensor Data Analytics for Industrial Systems Improvement written by Nathan Gaw and published by Springer Nature. This book was released on with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceeding of the 24th International Conference on Industrial Engineering and Engineering Management 2018 written by George Q. Huang and published by Springer. This book was released on 2019-01-12 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book records the new research findings and development in the field of industrial engineering, and it will serve as the guidebook for the potential development in industrial engineering and smart manufacturing. It gathers the accepted papers from the 24th International conference on Industrial Engineering and Engineering Management held at Central South University of Forestry and Technology in Changsha during May 19-20, 2018. The aim of this conference was to provide a high-level international forum for experts, scholars and entrepreneurs at home and abroad to present the recent advances, new techniques and application, to promote discussion and interaction among academics, researchers and professionals to promote the developments and applications of the related theories and technologies in universities and enterprises, and to establish business or research relations to find global partners for future collaboration in the field of Industrial Engineering. It addresses diverse themes in smart manufacturing, artificial intelligence, ergonomics, simulation and modeling, quality and reliability, logistics engineering, data mining and other related fields. This timely book summarizes and promotes the latest achievements in the field of industrial engineering and related fields over the past year, proposing prospects and vision for the further development.

Download or read book Simultaneous Tolerances Synthesis Through Variation Propagation Modeling of Multistage Manufacturing Processes written by Qiang Huang and published by . This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stream of variation Modeling and Analysis of Multi operational Machining Processes written by Qiang Huang and published by . This book was released on 2003 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computational Methods and Production Engineering written by J. Paulo Davim and published by Woodhead Publishing. This book was released on 2017-05-25 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Methods and Production Engineering: Research and Development is an original book publishing refereed, high quality articles with a special emphasis on research and development in production engineering and production organization for modern industry. Innovation and the relationship between computational methods and production engineering are presented. Contents include: Finite Element method (FEM) modeling/simulation; Artificial neural networks (ANNs); Genetic algorithms; Evolutionary computation; Fuzzy logic; neuro-fuzzy systems; Particle swarm optimization (PSO); Tabu search and simulation annealing; and optimization techniques for complex systems. As computational methods currently have several applications, including modeling manufacturing processes, monitoring and control, parameters optimization and computer-aided process planning, this book is an ideal resource for practitioners. - Presents cutting-edge computational methods for production engineering - Explores the relationship between applied computational methods and production engineering - Presents new innovations in the field - Edited by a key researcher in the field

Download or read book Proceedings of the 6th CIRP Sponsored International Conference on Digital Enterprise Technology written by George Q. Huang and published by Springer Science & Business Media. This book was released on 2009-12-12 with total page 1754 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Proceedings volume contains articles presented at the CIRP-Sponsored Inter- tional Conference on Digital Enterprise Technology (DET2009) that takes place December 14–16, 2009 in Hong Kong. This is the 6th DET conference in the series and the first to be held in Asia. Professor Paul Maropoulos initiated, hosted and chaired the 1st International DET Conference held in 2002 at the University of D- ham. Since this inaugural first DET conference, DET conference series has been s- cessfully held in 2004 at Seattle, Washington USA, in 2006 at Setubal Portugal, in 2007 at Bath England, and in 2008 at Nantes France. The DET2009 conference continues to bring together International expertise from the academic and industrial fields, pushing forward the boundaries of research kno- edge and best practice in digital enterprise technology for design and manufacturing, and logistics and supply chain management. Over 120 papers from over 10 countries have been accepted for presentation at DET2009 and inclusion in this Proceedings volume after stringent refereeing process. On behalf of the organizing and program committees, the Editors are grateful to the many people who have made DET2009 possible: to the authors and presenters, es- cially the keynote speakers, to those who have diligently reviewed submissions, to members of International Scientific Committee, Organizing Committee and Advisory Committes, and to colleagues for their hard work in sorting out all the arrangements. We would also like to extend our gratitude to DET2009 sponsors, co-organizers, and supporting organizations.

Download or read book Proceedings of the Pacific Rim Statistical Conference for Production Engineering written by Dongseok Choi and published by Springer. This book was released on 2018-03-27 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the 2nd Pacific Rim Statistical Conference for Production Engineering: Production Engineering, Big Data and Statistics, which took place at Seoul National University in Seoul, Korea in December, 2016. The papers included discuss a wide range of statistical challenges, methods and applications for big data in production engineering, and introduce recent advances in relevant statistical methods.

Download or read book Advanced Modeling and Optimization of Manufacturing Processes written by R. Venkata Rao and published by Springer Science & Business Media. This book was released on 2010-12-01 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Modeling and Optimization of Manufacturing Processes presents a comprehensive review of the latest international research and development trends in the modeling and optimization of manufacturing processes, with a focus on machining. It uses examples of various manufacturing processes to demonstrate advanced modeling and optimization techniques. Both basic and advanced concepts are presented for various manufacturing processes, mathematical models, traditional and non-traditional optimization techniques, and real case studies. The results of the application of the proposed methods are also covered and the book highlights the most useful modeling and optimization strategies for achieving best process performance. In addition to covering the advanced modeling, optimization and environmental aspects of machining processes, Advanced Modeling and Optimization of Manufacturing Processes also covers the latest technological advances, including rapid prototyping and tooling, micromachining, and nano-finishing. Advanced Modeling and Optimization of Manufacturing Processes is written for designers and manufacturing engineers who are responsible for the technical aspects of product realization, as it presents new models and optimization techniques to make their work easier, more efficient, and more effective. It is also a useful text for practitioners, researchers, and advanced students in mechanical, industrial, and manufacturing engineering.

Download or read book Statistical and Computational Techniques in Manufacturing written by J. Paulo Davim and published by Springer Science & Business Media. This book was released on 2012-03-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, interest in developing statistical and computational techniques for applied manufacturing engineering has been increased. Today, due to the great complexity of manufacturing engineering and the high number of parameters used, conventional approaches are no longer sufficient. Therefore, in manufacturing, statistical and computational techniques have achieved several applications, namely, modelling and simulation manufacturing processes, optimization manufacturing parameters, monitoring and control, computer-aided process planning, etc. The present book aims to provide recent information on statistical and computational techniques applied in manufacturing engineering. The content is suitable for final undergraduate engineering courses or as a subject on manufacturing at the postgraduate level. This book serves as a useful reference for academics, statistical and computational science researchers, mechanical, manufacturing and industrial engineers, and professionals in industries related to manufacturing engineering.

Download or read book Process Modelling and Simulation written by César de Prada and published by MDPI. This book was released on 2019-09-23 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since process models are nowadays ubiquitous in many applications, the challenges and alternatives related to their development, validation, and efficient use have become more apparent. In addition, the massive amounts of both offline and online data available today open the door for new applications and solutions. However, transforming data into useful models and information in the context of the process industry or of bio-systems requires specific approaches and considerations such as new modelling methodologies incorporating the complex, stochastic, hybrid and distributed nature of many processes in particular. The same can be said about the tools and software environments used to describe, code, and solve such models for their further exploitation. Going well beyond mere simulation tools, these advanced tools offer a software suite built around the models, facilitating tasks such as experiment design, parameter estimation, model initialization, validation, analysis, size reduction, discretization, optimization, distributed computation, co-simulation, etc. This Special Issue collects novel developments in these topics in order to address the challenges brought by the use of models in their different facets, and to reflect state of the art developments in methods, tools and industrial applications.