Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Optimization Of A Real Time Multi Mixed Make To Order Assembly Line To Reduce Positive Drift
Download Optimization Of A Real Time Multi Mixed Make To Order Assembly Line To Reduce Positive Drift full books in PDF, epub, and Kindle. Read online Optimization Of A Real Time Multi Mixed Make To Order Assembly Line To Reduce Positive Drift ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Optimization of a Real Time Multi Mixed Make-to-order Assembly Line to Reduce Positive Drift by : Rangith Baby Kuriakose
Download or read book Optimization of a Real Time Multi Mixed Make-to-order Assembly Line to Reduce Positive Drift written by Rangith Baby Kuriakose and published by . This book was released on 2019 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assembly lines are critical for the realization of product manufacture. In recent times, there has been a shift from the make-to-stock (mass production) approach to a make-to-order (mass customization) approach and this has brought on a strong emphasis on product variety. Although variety can be included to a product at various phases of production, literature shows that by providing each functional module of the product with several variants, assembly lines provide the most cost-effective approach to achieve high product variety. However, there are certain challenges associated with using assembly lines to achieve product variety. One of these challenges is assembly line balancing. Assembly line balancing is the search for an optimum assignment of tasks, such that given precedence constraints according to pre-defined single or multi objective goal are met. These objectives include reducing the number of stations for a given cycle time or minimizing the cycle time for a given number of stations. Cycle time refers to the amount of time allotted to accomplish a certain process in an assembly process. This deviation from the optimal cycle time is technically referred to as drift. Drift can be negative or positive. Negative drift represents the time span during which an assembly line is idle, due to work being finished ahead of prescribed cycle time. Positive drift, meanwhile, represents time span in which an assembly line exceeds the prescribed cycle time. The problems caused by drift, especially positive drift, is so vast that there is a research niche are dedicated to this study called Assembly Line Balancing Problems. Various authors have proposed numerous solutions for solving assembly line balancing problems created by positive drift. However, there is very little information on optimizing multi model make-to order systems with real time inputs so as to reduce the effects of positive drift. This study looks at how such a system can be optimized by using the case study of a water bottling plant. This is done by initially looking at the literature in the field of assembly line balancing to isolate the research gap this study aims to fill. Secondly, the water bottling plant, described as the case study, is modelled using MATLAB/Simulink. Thirdly, the different optimization methodologies are discussed and applied to the created model. Finally, the optimized model is tested and the results are analysed. The results of this study show that positive drift, which can be a major challenge in a real time multi mixed assembly line, can be reduced by the optimization of assembly lines. The results of this study can also be seen as an addition to the knowledge base of the broader research on mixed model assembly line balancing.
Book Synopsis Communication and Intelligent Systems by : Harish Sharma
Download or read book Communication and Intelligent Systems written by Harish Sharma and published by Springer Nature. This book was released on 2022-08-18 with total page 1213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers selected research papers presented at the Third International Conference on Communication and Intelligent Systems (ICCIS 2021), organized by National institute of Technology, Delhi, India, during December 18–19, 2021. This book presents a collection of state-of-the-art research work involving cutting-edge technologies for communication and intelligent systems. Over the past few years, advances in artificial intelligence and machine learning have sparked new research efforts around the globe, which explore novel ways of developing intelligent systems and smart communication technologies. The book presents single- and multi-disciplinary research on these themes in order to make the latest results available in a single, readily accessible source.
Book Synopsis Make-to-Order Assembly Management by : Rainer Kolisch
Download or read book Make-to-Order Assembly Management written by Rainer Kolisch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Purchasing .Fabrication Assembly Distribution Figure 1.1: Multi-Level Manufacturing System for Make-to-Order Products specific resources of a type, i.e., a certain machine or a single worker, the determination of the sequence operations are processed on a ma chine, and the assignment of start and finish times to operations. We will modify this framework to be specifically suited for multi level make-to-order manufacturing systems. We assume that the facil ity design issue is settled, i.e., the location and the layout of the facility as well as the capacity ofthe three main resource types of the company are determined. These resource types are the engineering department, the fabrication department, and the assembly department. The engineering department is concerned with the construction of new products as well as the modification and customization of ex isting products. This entails the generation of engineering documents such as blue prints for manufacturing. The capacity of the engineering department is determined by the the count and qualification of engi neers and by the availability of construction devices such as computer aided design (CAD) systems etc.
Book Synopsis Assembly-Line Balancing under Demand Uncertainty by : Celso Gustavo Stall Sikora
Download or read book Assembly-Line Balancing under Demand Uncertainty written by Celso Gustavo Stall Sikora and published by Springer Nature. This book was released on 2022-01-11 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assembly lines are productive systems, which are very efficient for homogeneous products. In the automotive industry, an assembly line is used in the production of several vehicle variants, including numerous configurations, options, and add-ins. As a result, assembly lines must be at the same time specialized to provide high efficiency, but also flexible to allow the mass customization of the vehicles. In this book, the planning of assembly lines for uncertain demand is tackled and optimization algorithms are offered for the balancing of such lines. Building an assembly line is a commitment of several months or even years, it is understandable that the demand will fluctuate during the lifetime of an assembly line. New products are developed, others are removed from the market, and the decision of the final customer plays a role on the immediate demand. Therefore, the variation and uncertainty of the demand must be accounted for in an assembly line. In this book, methods dealing with random demand or random production sequence are presented, so that the practitioners can plan more robust and efficient production systems.
Book Synopsis Assembly Line Balancing under Uncertain Task Time and Demand Volatility by : Yuchen Li
Download or read book Assembly Line Balancing under Uncertain Task Time and Demand Volatility written by Yuchen Li and published by Springer Nature. This book was released on 2022-09-10 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces several mathematical models in assembly line balancing based on stochastic programming and develops exact and heuristic methods to solve them. An assembly line system is a manufacturing process in which parts are added in sequence from workstation to workstation until the final assembly is produced. In an assembly line balancing problem, tasks belonging to different product models are allocated to workstations according to their processing times and precedence relationships among tasks. It incorporates two features, uncertain task times, and demand volatility, separately and simultaneously, into the conventional assembly line balancing model. A real-life case study related to the mask production during the COVID-19 pandemic is presented to illustrate the application of the proposed framework and methodology. The book is intended for graduate students who are interested in combinatorial optimizations in manufacturing with uncertain input.
Book Synopsis Time-Dependent Path Scheduling by : Helmut A. Sedding
Download or read book Time-Dependent Path Scheduling written by Helmut A. Sedding and published by Springer Nature. This book was released on 2019-11-22 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Moving assembly lines are the stepping stone for mass production of automobiles. Here, every second counts, which necessitates planners to meticulously optimize them. A crucial factor is each worker’s nonproductive walking time between the moving workpiece and line-side material containers for picking up required material. Minimizing the walking time is difficult because the workpiece moves steadily. Helmut A. Sedding devises algorithms to optimize the sequence of work operations, and the placement of material containers. Thereby, he introduces a novel category of time-dependent scheduling problems, and lays the basis for the algorithmic optimization of time-dependent paths at the moving assembly line. About the Author: Helmut A. Sedding passed his doctoral thesis with distinction at the Institute of Theoretical Computer Science at Ulm University, Germany. He researches on modeling, complexity analysis, and algorithm design for the solution of various optimization problems. His practical experience includes the development of automotive production planning software in use at major car manufacturers.
Book Synopsis Balancing Mixed-model Assembly Line to Reduce Work Overload in a Multi-level Production System by : Pravin Y. Tambe
Download or read book Balancing Mixed-model Assembly Line to Reduce Work Overload in a Multi-level Production System written by Pravin Y. Tambe and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design for Manufacturability by : David M. Anderson
Download or read book Design for Manufacturability written by David M. Anderson and published by CRC Press. This book was released on 2020-05-11 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieve any cost goals in half the time and achieve stable production with quality designed in right-the-first-time. Design for Manufacturability: How to Use Concurrent Engineering to Rapidly Develop Low-Cost, High-Quality Products for Lean Production is still the definitive work on DFM. This second edition extends the proven methodology to the most advanced product development process with the addition of the following new, unique, and original topics, which have never been addressed previously. These topics show you how to: Cut cost from 1/2 to 1/10 in 9 categories—with ways to remove that much cost from product charges and pricing Commercialize innovation—starting with Manufacturable Research and learning from the new section on scalability, you will learn how to design products and processing equipment to quickly scale up to any needed demand or desired growth. Design product families that can be built "on-demand" in platform cells that also "mass customize" products to-order Make Lean production easier to implement with much more effective results while making build-to-order practical with spontaneous supply chains and eliminating forecasted inventory by including an updated chapter on "Designing Products for Lean Production" The author’s 30 years of experience teaching companies DFM based on pre-class surveys and plant tours is the foundation of this most advanced design process. It includes incorporating dozens of proven DFM guidelines through up-front concurrent-engineering teamwork that cuts the time to stable production in half and curtails change orders for ramps, rework, redesign, substituting cheaper parts, change orders to fix the changes, unstable design specs, part obsolescence, and late discovery of manufacturability issues at periodic design reviews. This second edition is for the whole product development community, including: Engineers who want to learn the most advanced DFM techniques Managers who want to lead the most advanced product development Project team leaders who want to immediately apply all the principles taught in this book in their own micro-climate Improvement leaders and champions who want to implement the above and ensure that the company can design products and versatile processing equipment for low-volume/high-mix product varieties Designing half to a tenth of cost categories can avoid substituting cheap parts, which degrades quality, and encourages standardization and spontaneous supply chains, which will encourage Lean initiatives. Using cellular manufacturing to shift production between lines for mixed production of platforms and build-to-order to offer the fastest order fulfillment can beat any competitors’ delivery time.
Book Synopsis An Optimization Grouping Method in a Multi-line Manufacturing System by : He, Xi (M. Eng.)
Download or read book An Optimization Grouping Method in a Multi-line Manufacturing System written by He, Xi (M. Eng.) and published by . This book was released on 2010 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tailored product grouping method using binary integer linear program for optimization is developed for two production lines in a food packaging manufacturer. A mathematical model is created to assign products to the two dedicated production lines with an objective to minimize the total setup times. The optimization model is subject to capacity constraints on each line. With the demand of each product entered, the model is able to generate an optimal production grouping and sequence as well as the minimal total setup time required. Compared with CAS current fixed grouping method, this linear program grouping method reduces total setup time generally by 17% and prevents both production lines from overloading. Also, this grouping method allows the Make-to-Order food packaging manufacturer to respond to changes in demand volume and product mix by changing the product grouping accordingly.
Book Synopsis Balancing and Sequencing of Assembly Lines by : Armin Scholl
Download or read book Balancing and Sequencing of Assembly Lines written by Armin Scholl and published by Physica. This book was released on 1999-02-26 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with two main decision problems which arise when flow-line production systems are installed and operated. The assembly line balancing problem consists of partitioning the work, necessary to assemble the product(s), among different stations of an assembly line. If several models of a product are jointly processed on a line, this medium-term problem is connected with the short-term problem of determining an operating sequence of the models. In Part I balancing and sequencing problems are discussed, classified, and arranged within a hierarchical planning system. In the present second edition special emphasis is given to u-shaped assembly lines which are important components of modern just-in-time production systems. Part II is concerned with exact and heuristic procedures for solving those decision problems. For each problem type considered, a survey of existing procedures is given and new efficient solution methods are developed. Comprehensive numerical investigations showing the effectiveness of the new methods and their superiority over existing approaches are reported.
Book Synopsis Influence of Positive Order Fulfillment Time in Batch Production System℗ by : Yan Xia
Download or read book Influence of Positive Order Fulfillment Time in Batch Production System℗ written by Yan Xia and published by . This book was released on 2012 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: In batch production systems with zero fulfillment time, inventory on all items has to be maintained to respond to stochastic customer demand. Meeting a desired service level would require high safety stock levels. Cyclical inventory cost is charged to each make-to-stock (MTS) item. These two types of costs lead to an expensive inventory holding policy. However if customer contracts can be revised with positive fulfillment time, there is an opportunity to reduce both types of inventory costs. The positive order fulfillment time allows the manufacturer to reduce safety stock by scheduling production in response to arriving orders and to reduce cyclical inventory cost by converting some items to make-to-order (MTO). This research considers a formal approach to determine a policy to minimize the inventory cost with desired service level and positive order fulfillment time. Our production system is a single server multi-item system with constant order fulfillment time and homogeneous stochastic processing time, hence, it can be modeled as an M/G/1 queue. In addition, the queue operates on a first-come-first-serve (FCFS) scheduling rule. For this type of system, we derive the conditions under which a pure MTO policy can be applied. We also use a mixed-integer nonlinear programming model to determine a combined MTS/MTO policy when pure MTO is not feasible. In terms of this combined MTO/MTS policy, through numerical study we show the percentage of items that will be MTO is dependent on initial system load and the order fulfilment time. We also find out that we expect to save more, from this combined MTO/MTS, facing a system with a small initial load and a long order fulfillment time. Moreover, an item with small arrival rate, large order size mean and large unit time holding cost is more likely to be MTO. This should result in insights for a manufacturer using combined MTS/MTO policy with positive order fulfillment time.
Book Synopsis Hybrid Make-to-Stock, Make-to-Order (MTS-MTO) Production Optimization and Predictive Manufacturing Plan by : Andrew Joseph Thoma
Download or read book Hybrid Make-to-Stock, Make-to-Order (MTS-MTO) Production Optimization and Predictive Manufacturing Plan written by Andrew Joseph Thoma and published by . This book was released on 2016 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid growth of the Print on Demand (POD) business has necessitated a capacity expansion plan that spans the next five years. After analyzing sales data it was determined that more titles are selling in larger quantities. For these titles, the current make-to-order model does not represent the optimal manufacturing and fulfillment strategy. This preliminary insight led to the realization that an inventory model that uses demand forecasts and a cost analysis for each title should be used to determine the optimal ordering quantity for qualifying titles, in an initiative called high volume pre-builds. Additionally, an initiative called predictive manufacturing should be used concurrently to provide customer experience improvements to titles that sell in large quantities but do not qualify for high volume pre-builds. The development of a hybrid make-to-stock, make-to-order (MTS-MTO) production optimization model will lead to pre-building between 1.1M and 2.1M retail units per year, but could be scaled upward. Pre-building allows for cost savings through economies of scale in manufacturing and through transportation savings based on inventory placement and network topology. An additional 300K+ annual retail titles will be eligible for predictive manufacturing, which will also benefit from transportation savings. The customer experience improvements alone would make these initiatives worth pursuing even if they were NPV neutral or slightly negative. However, they are a clear win when also considering overall integration and cost savings. These initiatives will drive a lower cost structure for book manufacturing that benefits all stakeholders (Amazon, authors, and customers), which will lead to the continued, rapid growth of POD.
Book Synopsis Balancing and Sequencing of Assembly Lines by : Armin Scholl
Download or read book Balancing and Sequencing of Assembly Lines written by Armin Scholl and published by Physica. This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book on hand describes decision problems which arise in flow -line production systems and proposes adequate solution methods. Flow -line production systems are present in different industrial environments and are utilized to manufacture a large variety of products. Usually, several models (versions) of a standardized product differing from each other by optional components and equipment have to be as sembled jointly on (mixed-model) assembly lines. Two main types of decision problems have to be solved when such production systems are installed and operat ed. The assembly line balancing problem consists of partitioning the assembly work (of each model) among different stations of a line. This medium-term problem is connected with the short-term problem of fmding an operating sequence of the models required to meet customer demands (mixed-model sequencing problem). These problem types are discussed and classified in Part I of this work. Different versions of balancing and sequencing problems are defmed and arranged within a hierarchical planning system. Since the optimization problems mentioned above are NP-hard, a lot of research work has been done so far in order to develop procedures which provide acceptable solutions within an appropriate amount of computation time on a computer system. Part II of the book surveys existing procedures and presents a number of very promising new solution methods for several versions of both basic problem types. Comprehensive numerical investigations showing the effectiveness of the new methods are reported.
Book Synopsis Real Time Problems in Assembly Line Balancing by : Satish Pandian G
Download or read book Real Time Problems in Assembly Line Balancing written by Satish Pandian G and published by Createspace Independent Publishing Platform. This book was released on 2016-12-29 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with real time problems in assembly line balancing using MOST analysis and challenger matrix.
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1961-05 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Book Synopsis Small World Optimization for Multiple Objects Optimization of Mixed-Model Assembly Sequencing Problem by : Arnaud Zinflou
Download or read book Small World Optimization for Multiple Objects Optimization of Mixed-Model Assembly Sequencing Problem written by Arnaud Zinflou and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Order Allocation for Make-to-order Manufacturing Networks by : Gareth Pierce Williams
Download or read book Dynamic Order Allocation for Make-to-order Manufacturing Networks written by Gareth Pierce Williams and published by . This book was released on 2011 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planning and controlling production in a large make-to-order manufacturing network poses complex and costly operational problems. As customers continually submit customized orders, a centralized decision-maker must quickly allocate each order to production facilities with limited but flexible labor, production capacity, and parts availability. In collaboration with a major desktop manufacturing firm, we study these relatively unexplored problems, the firm's solutions to it, and alternate approaches based on mathematical optimization. We develop and analyze three distinct models for these problems which incorporate the firm's data, testing, and feedback, emphasizing realism and usability. The problem is cast as a Dynamic Program with a detailed model of demand uncertainty. Decisions include planning production over time, from a few hours to a quarter year, and determining the appropriate amount of labor at each factory. The objective is to minimize shipping and labor costs while providing superb customer service by producing orders on-time. Because the stochastic Dynamic Program is too difficult to solve directly, we propose deterministic, rolling-horizon, Mixed Integer Linear Programs, including one that uses recently developed affinely-adjustable Robust Optimization techniques, that can be solved in a few minutes. Simulations and a perfect hindsight upper bound show that they can be near-optimal. Consistent results indicate that these solutions offer several hundred thousand dollars in daily cost saving opportunities by accounting for future demand and repeatedly re-balancing factory loads via re-allocating orders, improving capacity utilization, and improving on-time delivery.
