نتایج جستجو برای: parallel assembly line

تعداد نتایج: 741727  

This paper proposed a parallel automated assembly line system to produce multiple products having multiple autonomous guided vehicles (AGVs). Several assembly lines are configured to produce multiple products in which the technologies of machines are shared among the assembly lines when required. The transportation between the stations in an assembly line (intra assembly line) and among station...

Journal: :مطالعات مدیریت صنعتی 0
محمد رحیم رمضانیان عضو هیات علمی دانشگاه گیلان محمد حسن قلی زاده عضو هیات علمی دانشگاه گیلان شیوا شبان

in this paper, based on the background of cost-oriented assembly line balancing problems, a novel mathematical model for scheduling and balancing the assembly line is offered that with the combination of task sequence-dependent setup time, parallel stations and resource constraint, minimizes the operational and investment costs of assembly system. due to the complexity of the problem, the equat...

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
shirazeh arghami occupational health engineering dept., zanjan social determinants of health research center, zanjan university of medical sciences, iran. reza kalantari department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran. elham ahmadi kionani department of occupational health engineering, shahid beheshti university of medical sciences, tehran, iran. ahmad zanjirani farahani department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran. mehrdad kamrani department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran.

background; work-related musculoskeletal disorders (wmsds) may involve all parts of the body, and have been a worldwide problem. employed women are two to five times more likely to report such problems, and assembly lines suspected to induce more wmsds because of high rate of repetitive motions. methods;the aim of this study to determine the prevalence of wmsds in women workers of an automobile...

Journal: :international journal of mathematical modelling and computations 0
masoud rabbani college of engineering, university of tehran iran, islamic republic of industrial engineering zohreh zahedian-tejenaki school of industrial engineering, college of engineering, university of tehran iran, islamic republic of farnoush otrody school of industrial engineering, college of engineering, university of tehran iran, islamic republic of amir farshbaf-geranmyeh school of industrial engineering, college of engineering, university of tehran iran, islamic republic of

with the growth in customers’ demand diversification, mixed-model u-lines (mmul) have acquired increasing importance in the area of assembly systems. there are generally two different approaches in the literature for balancing such systems. some researchers believe that since the types of models can be very diverse, a balancing approach without simultaneously sequencing of models will not yield...

Due to the variety of products, simultaneous production of different models has an important role in production systems. Moreover, considering the realistic constraints in designing production lines attracted a lot of attentions in recent researches. Since the assembly line balancing problem is NP-hard, efficient methods are needed to solve this kind of problems. In this study, a new hybrid met...

Taghizadeh, Houshang , Zeinalzadeh, Amin ,

According to researches, one of the productivity barriers among many organizations is assembly line balancing problem, which needs scientific models to be solved. This paper examines the effect of line balancing on the functioning of assembly line in two sections. In the first section, after studying the theoretic bases and reviewing the literature, we have discussed the assembly concepts, diff...

Journal: :Computers & Industrial Engineering 2015
Ibrahim Kucukkoc David Z. Zhang

There are many factors which affect the performance of a complex production system. Efficiency of an assembly line is one of the most important of these factors since assembly lines are generally constructed as the last stage of an entire production system. Parallel two-sided assembly line system is a new research domain in academia though these lines have been utilised to produce large sized p...

2005
John W. K. Leung K. K. Lai

An assembly system (AS), a valuable tool for mass production, is generally composed of a number of workstations and a transport system. While the workstations perform some preplanned operations, the transport system moves the assemblies by special designed pallets from one station to another. One common problem associated with automatic assembly systems is that some assembly operations may have...

Proper planning of assembly lines is one of the production managers’ concerns at the tactical level so that it would be possible to use the machine capacity, reduce operating costs and deliver customer orders on time. The lack of an efficient method in balancing assembly line can create threatening problems for manufacturing organizations. The use of assembly line balancing methods cannot balan...

In this paper we are to present a practical application of Axiomatic Design (AD) methodology, as a roadmap to lean production, in redesigning a car body assembly line. Axiomatic Design theory provides a framework to simplify the whole problem. According to the AD principles, a hierarchical structure has been developed. The developed structure originated in lean manufacturing principles and exis...

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