The simulation results show that the pso algorithm can optimize assembly line balancing problem with the highest assembly line balance rate and the smallest discrete conditions than the other two methods, which. Flexible line balancing uses the comsoal computer method of sequencing operations for an. Mixed assembly line balancing method in scenarios with. Heuristic procedure for the assembly line balancing problem.
Landasan teori line balancing menurut gaspersz 2004, line balancing merupakan penyeimbangan penugasan elemenelemen tugas dari suatu assembly line ke work stations untuk meminimumkan banyaknya work station dan meminimumkan total harga idle time pada semua stasiun untuk tingkat output tertentu. A comparative evaluation is presented of six popular assembly line balancing heuristics, namely, ranked positional weight, kilbridge and wester, moodie and young, hoffman precedence. The type e simple assembly line balancing problem computers. Final results of assembly line balancing problem intechopen. Assign tasks to first workstation, using rules and staying within cycle time. Matlab simulation software was used in the analysis of the primary and secondary data obtained from the assembly line under study. In this work, a simulated annealing heuristic was proposed for solving assembly line balancing problems with multimanned workstations. Such performance indexes are the line efficiency, st ation smoothness index. Mixed assembly line balancing method in scenarios with different. Short but useless answer yes, i expect it is possible to do these things in excel just like in any other programming language.
The objectives concern the minimization of the number of workstations and the. Line balancing is the assignment of work elements to stations in a line. The simulation results show that the pso algorithm can. Assembly line had evolved several times since the introduction of the first. The application of fuzzy logic in balancing a single model tricycle assembly line is presented in this study. At last, the third objective aims to minimize the positive deviation of smoothness index on the basis of number of workers at stations without square root. Flexible line balancing free version download for pc. Many but not all of the images on this blog are under a creative commons. Does anyone know some assembly line balancing software. Working within autocad, automatically generate walkpath diagrams and calculate worker walk times, lean valueadded percentages, travel distances, and ergonomic safety assessments.
Helgeson et al helgeson et al, 1961 were the first to propose the albp, and salveson salveson, 1955 was. Using the taguchi method to optimize the differential evolution algorithm parameters for minimizing the workload smoothness index in simple assembly line balancing mathematical and computer modelling. The assembly line balancing problem is a combinatorial problem requiring an assignment of tasks that maximizes labour utilization. Flexible line balancing uses the comsoal computer method of sequencing operations for an assembly line procedure to assign work elements to stations. The concept of an assembly line al came to the fact when the finished product is. An assembly line is specified by a finite set of tasks, processing time for each task and the precedence relationship which defines permissible ordering of tasks. This paper proposes a new genetic algorithm approach for solving a multiobjective assembly line balancing problem. Line balancing to minimize cycle time view the model download the model given. In a multimanned assembly line, tasks of the same workpiece can be executed simultaneously by different workers working in the same station. A smoothness index of zero indicates a perfect balance workstation ws. The definition of assembly line balancing difficulty and. Balancing lexicographic multiobjective assembly lines with. The assembly line balancing problem aims at assigning assembly operations to a set of.
A research on assembly line balancing based on ie methoda. This research work presents a new heuristic method based on cpm critical path method for simple assembly line balancing. A multiobjective software tool for manual assembly line. To understand better the problem a numerical example is discussed. Perfect balance is indicated by smoothness index 0. If and only if the image above is under a creative commons license, you can find details for the different licenses at the creative commons. Assembly line balancing to improve productivity using work. The results of computational study on the benchmark data set demonstrate the efficacy of the improved formulation highlightsthe type e simple assembly line balancing problem is considered. Based on the cited studies, ranked positional weight. Assembly line is a common form of production in manufacturing enterprises,and the efficiency of assembly line directly affects the production of the whole production line. The performance criteria considered are the number of workstations, the line efficiency, the smoothness index before trade and transfer, and the smoothness index after trade and transfer. Smoothness index how is smoothness index abbreviated.
An example of line balancing assigning tasks to stations a precedence diagram is a lot like a process flow diagram. Landasan teori line balancing menurut gaspersz 2004, line balancing merupakan penyeimbangan penugasan elemenelemen tugas dari suatu assembly line ke work. Assembly line design and balancing designing and balancing the audi b9 mirror assembly line at smr automotive mirrors technology, mosonszolnok, hungary master of science thesis in the masters. The objectives concern the minimization of the number of workstations and the workload variance, typically faced by most systems presented in literature, but also the minimization of three further aspects, not simultaneously treated in literature and very important in manual. A mathematical programming model of the assembly line. Improvement of garment assembly line efficiency using line. In assembly line balancing, a garment manufacturer. In this paper, a genetic algorithm and a local search procedure are proposed to minimize workload smoothness index in an extension of simple assembly balancing problem 2 salbp2. Line balancing, line balancing operations management. The evaluation criteria used are the number of excess stations given, line efficiency, smoothness index and cpu time. Smoothness index this is the index to indicate the relative smoothness of a given assembly line balance.
Assembly line balancing is the problem of assigning operations to workstations along an assembly line, in such a way that the assignment be best in some sense. Findings minimizing the smoothness index is not necessarily equivalent to. I am not at all familiar with line balance problems i dont know if any of us here will be, but it sounds like an old problem that people have been solving for a long time, and i expect some of them have been using spreadsheets for the solution. In fact, assembly line can be a determinant in measuring the efficiency in the production operation of automotive manufacturer. Worker skills and equipment optimization in assembly line. Assembly line grouped in their respective workstations is represented manually in the form of a precedence diagram. Arranging stations in a sequence line for the product to move from one station to the next until its completion at the end of the line.
Menyelesaikan masalah line balancing, manajemen industri harus dapat mengetahui tentang metode kerja, peralatan peralatan, mesinmesin, dan personel yang digunakan dalam proses. Minimize the maximum amount of work assigned to any station, subject to. Line balancing biasanya dilakukan untuk meminimumkan ketidakseimbangan diantara mesinmesin atau personel agar memenuhi output yang diinginkan dari assembly line itu. The assembly line balancing problem albp originated with the invention of the assembly line. Assembly line design and balancing designing and balancing the audi b9 mirror assembly line at smr automotive mirrors technology, mosonszolnok, hungary master of science thesis in the masters programme production engineering ranjith raja department of product and production development division of production systems. Abstract line balancing is an effective tool to improve. Assembly line balancing problem with reduced number of. A mathematical programming model of the assembly line balancing problem dennis l. Assembly line had evolved several times since the introduction of the first assembly line.
Mar 17, 2016 line balancing biasanya dilakukan untuk meminimumkan ketidakseimbangan diantara mesinmesin atau personel agar memenuhi output yang diinginkan dari assembly line itu. The original assembly line was strictly paced and straight singlemodel lines. The line efficiency is used for the calculation of efficiency of the assembly line. Bricker shuwhwey juang department of industrial engineering the university of iowa working paper november.
Bricker shuwhwey juang department of industrial engineering the university of iowa working paper november 1993 abstract. Since introduction of assembly lines by henry ford, line balancing has been an optimisation problem of important industrial importance. Laporan modul 4 line balancing linkedin slideshare. Matlab simulation software was used in the analysis of the primary and secondary data obtained. The compound problem analysis and evaluation formulae are currently being installed in a new software package for assembly line balancing entitled a. Positive and negative deviations from the target value zero of the smoothness index value of the line without square root. A comparative evaluation of assembly line balancing. The concept of an assembly line al came to the fact when the finished product is inclined to the perception of product modularity. Assembly line balancing to improve productivity using work sharing method in apparel industry.
This research is concerned with objectives of minimizing the number of workstations, improving smoothness index, increasing line efficiency and improving mean absolute deviation mad. A preference order dynamic program for stochastic assembly line. This is the index to indicate the relative smoothness of a given assembly line balance. This research is concerned with objectives of minimizing the number of. A computing procedure for a line balancing problem. An efficient integer programming algorithm with network cuts. A set of tasks, each with a task time, precedence constraints among some of the tasks, a limited number of stations. Flexible line balancing is an outstanding tool to raise productivity on any progressive assembly line. Assembly line balancing alb and sequencing is an active area of optimization research in operations management. A smoothness index of zero indicates a perfect balance workstation. I am not at all familiar with line balance problems i dont know if. The processes used to accomplish the assembly of the components can be divided into three major categories. Commonly, a traditional way of doing assembly line balancing is by using.
Quickly and easily allocate any number of tasks to assembly line workstations with a. A mixed integer linear program is developed for the problem. The assembly line balance alb is known as the classic problem of al balancing, consisting in the allocation of tasks on a workstation in a way that downtime is minimized and the precedence constraints are met rekiek et al. A new heuristic method rpw method and genetic algorithm. Reducing the number of workstations and increasing the. The methods are implemented in the line balancing program as well. A smoothness indeed is zero indicates perfect balance. A novel assembly line balancing method based on pso algorithm. Assembly systems and line balancing discrete products are assembled from components. Repeat for following workstations until all tasks are assigned.
Introduction an assembly line balancing alb problem is wellknown in industry. Dec 28, 20 a comparative evaluation is presented of six popular assembly line balancing heuristics, namely, ranked positional weight, kilbridge and wester, moodie and young, hoffman precedence matrix, immediate update first fit, and rank and assign heuristic. Many but not all of the images on this blog are under a creative commons license. Example of line balancing in excel using pivot table. Measuring effectiveness of balance in the assembly line t modie and young 9 proposed smoothness. Based on the cited studies, ranked positional weight technique was noted to be suitable for improving garment assembly line efficiency. The assembly line balance alb is known as the classic problem of al balancing, consisting in the allocation of tasks on a workstation in a way that downtime is minimized. The performance criteria considered are the number of workstations, the line efficiency, the smoothness. Assembly line balancing in an electronics company using simulation. Then, the assembly line had evolved by the needs of. A survey of exact algorithms for simple assembly line balancing. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
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