scholarly journals Usulan Penyeimbangan Lintasan Produksi pada Line Final Assembling KWH OB91Z Guna Meningkatkan Efisiensi Lintasan Produk di PT Metbelosa

2012 ◽  
Vol 9 (1) ◽  
pp. 33-45
Author(s):  
Siti Aisyah ◽  
Mediana Mediana
Keyword(s):  
Data Collection ◽  
Production Process ◽  
Heuristic Method ◽  
Idle Time ◽  
Computer Method ◽  
Line Balancing ◽  
Heuristic Methods ◽  
Assembly Lines ◽  
Manufacturing Firm ◽  
Target Company

Smooth production in a manufacturing firm is very important because it will affect the outcome of which is the expected output of the production trajectory balance that existed at the company if it is optimal or not. The objectives to be achieved in this research is balancing production trajectory so that the expected target company can be reached, drink idle time, and improve the efficiency of the production trajectory.  At PT METBELOSA there are trajectories that have not been balanced by the production of idle time on the final line for assembling OB91Z 1.606149 minutes, balance delay in assembling the final line OB91Z by 29.75% and the efficiency in assembling the final line OB91Z of 70.25%, from Data collection on the final assembling line OB91Z also note that the company can not achieve the expected production targets every day as many as 1500 kwh meter OB91Z type. Therefore the company needs to make improvements in the balancing path to reach their intended target in the final assembling line OB91Z. The method used is a heuristic method MALB (Mansoor Aided Line Balancing) and heuristic methods COMSOAL (Computer Method for Sequencing Operations for Assembly Lines). The data used is data on the production process of assembling the final line OB91Z and the amount of labor in assembling the final line OB91Z. After making improvements by using heuristic methods MALB (Mansoor Aided Line Balancing) then the balance delay becomes 14.62% and 85.38% effeciency be.

Tackling Means for Balancing the Production Lines

2011 ◽  
Vol 383-390 ◽  
pp. 4620-4628
Author(s):  
Olga Ioana Amariei ◽  
Codruţa Oana Hamat ◽  
Liviu Coman ◽  
Cristian Fănică ◽  
Cristian Rudolf
Keyword(s):  
Production Line ◽  
Idle Time ◽  
Computer Method ◽  
Basic Method ◽  
Assembly Lines ◽  
Production Lines ◽  
Heuristic Techniques ◽  
Human Operators

Balancing a production line means to organize the activity of the human operators, to establish the production flux and designing the line, minimizing the idle time for the machines and the operators, through an optimal charge bestowed upon them. WinQSB software offers three methods of solving this type of problem, namely: heuristic techniques (a basic method is specified and an alternative one from all the available ones), Optimizing Best Bud Search and Computer Method of Sequencing Operations for Assembly Lines, presented all in the present paper.

scholarly journals Line Balancing Analysis of Hollow Dakota 1730 Manufacturing Process in PT XYZ

2021 ◽  
Vol 328 ◽  
pp. 05012
Author(s):  
Rachmad Hidayat ◽  
Shofi fitrotis Salimah ◽  
Moh. Jufriyanto ◽  
M.Firman Khaqiqi
Keyword(s):  
Production Process ◽  
Manufacturing Process ◽  
Production Line ◽  
Idle Time ◽  
Line Balancing ◽  
Balance Performance ◽  
Production Lines ◽  
Work Station ◽  
Weight Method ◽  
Positional Weight

The existence of operational balance in each production lines may decrease the idle time; it shows that the productivity is increasing therefore it increases the production rate. The issues existed in the production process of hollow Dakota 1730 in PT. XYZ were 3 departments, from the result of the first observation, there was a bottleneck from each department and each production did not achieve the required target. Therefore, this research would fix the production line. The method used was ranked /positional weight. Based on the data processing by the ranked positional weight method, gained the total of work station in the production process of hollow Dakota 1730 by the number of 2 work stations. From the result of efficiency balancing, gained 62.5% and balance delay value was 37.5%. it shows that the balance performance between each department increases significantly.

scholarly journals Analisis Keseimbangan Lintasan Proses Produksi Roti Manis Kasur Kombinasi di PT. Indoroti Prima Cemerlang

2020 ◽  
Vol 8 (4) ◽  
pp. 595
Author(s):  
Ni Luh Ayu Uparina Yanti Putri ◽  
I Ketut Satriawan ◽  
Cokorda Anom Bayu Sadyasmara
Keyword(s):  
Production Process ◽  
Production Line ◽  
Consumer Demand ◽  
Idle Time ◽  
Line Balancing ◽  
Optimum Number ◽  
Work Station ◽  
Food Industries

PT Indoroti Prima Cemerlang is one of the Food  industries which produces bread with a brand Mr. Bread. the company had problems with the balance of the production line, so that it cannot meet consumer demand, this causing the company to not able meet the production targets. The purpose of this study is to calculate the increase in line balancing and decrease in idle time and determine the optimum number of work stations in the production process of product sweetbread combination at PT. Indoroti Prima Cemerlang. The method used in this study was the Ranked Position Weight (RPW) method with the results obtained that the number of work stations is reduced to 5 work stations, the line efficiency increases to 40% and balance delay decreased to 60% with idle time reduced to 29.019 seconds. Keywords : Line balancing, work station, idle time, balance delay, Ranked Position Weight

Researching and Applying the Line Balancing Methods in Optimizing Automobile Assembly Lines

2019 ◽  
Vol 889 ◽  
pp. 574-579
Author(s):  
Nguyen Phi Trung ◽  
Le Minh Tai
Keyword(s):  
Waiting Time ◽  
Efficiency Index ◽  
Idle Time ◽  
Line Balancing ◽  
Assembly Lines ◽  
Time Saving ◽  
Automobile Manufacturing ◽  
Advantages And Disadvantages ◽  
Automobile Assembly ◽  
Task Time

The purpose of this paper is to researching basic methods of line balancing used widely in operations. Particularly, five basic methods including Longest task time, Shortest task time, Most following tasks, Least following task, Ranked positional weighted are researched. Then they are applied in balancing the assembly line of an automobile manufacturing company. The results show the comparisons of advantages and disadvantages of each method based on total idle time and efficiency index. Firstly, idle time is the waiting time or non-working time of the workers while they are still paid their enough salary. Moreover, the waiting time makes an unfair between workers - some people work more and some work less. Secondly, efficiency in the workplace is the time it takes to do something. Efficient employees and managers complete tasks in the least amount of time possible with the least amount of resources possible by utilizing certain time-saving strategies. The calculations are performed to create these two values and graphs are drawn with the support of excel softwares.

Workload smoothing in two-sided assembly lines

2018 ◽  
Vol 38 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Xiaofeng Hu ◽  
Chunaxun Wu
Keyword(s):  
Assembly Line ◽  
Assembly Line Balancing ◽  
Idle Time ◽  
Line Balancing ◽  
Assembly Lines ◽  
Absolute Deviation ◽  
Content Type ◽  
Smoothness Index ◽  
Assembly Line Balancing Problem ◽  
New Criteria

Purpose The purpose of this paper is to define new criteria for measuring workload smoothness of two-sided assembly lines and propose an algorithm to solve a two-sided assembly line balancing problem focusing on distributing the idle time and the workload as evenly as possible among the workstations. Design/methodology/approach This paper points out that the mean absolute deviation (MAD) and the smoothness index (SI) used to measure the workload smoothing in one-sided assembly lines are both inappropriate to evaluate the workload balance among workstations in two-sided assembly lines, as the idle time occur at the beginning and in the middle of a cycle within workstations. Then, the finish-time-based SI and MAD (FSI and FMAD) are defined, and a heuristic procedure based on the core mechanism of Moodie and Young method is proposed to smooth the assembly workload in two-sided assembly lines. Findings The computational results indicate that the proposed heuristic algorithm combined with the FMAD is effective in distributing the idle time and the workload among workstations as evenly as possible in two-sided assembly lines. Practical implications The two-sided assembly line balancing problem with the objective of the line efficiency can be effectively solved by the proposed approach. Originality/value The FMAD is proposed to effectively improve the workload smoothing in two-sided assembly lines.

Enhancing the Largest Set Rule for Assembly Line Balancing Through the Concept of Bi-Directional Work Relatedness

2010 ◽  
Vol 14 (4) ◽  
pp. 353-363 ◽  
Author(s):  
Konstantinos N. Genikomsakis ◽  
◽  
Vassilios D. Tourassis
Keyword(s):  
Cycle Time ◽  
Optimization Problem ◽  
Assembly Line ◽  
Assembly Line Balancing ◽  
Idle Time ◽  
Line Balancing ◽  
Assembly Lines ◽  
Actual Nature ◽  
Novel Concept ◽  
Task Assignments

The process of optimally assigning the timed tasks required to assemble a product to an ordered sequence of workstations is known as the Assembly Line Balancing (ALB) problem. Typical approaches to ALB assume a strict mathematical posture and mostly treat it as a combinatorial optimization problem with the objective of minimizing the idle time across the workstations, while satisfying precedence constraints. The actual nature of the tasks assigned is seldom taken into consideration. While this approach may yield satisfactory cycle time results on paper, it often leads to inconvenient task assignments in an actual work environment. It has been postulated in the literature that assigning groups of related tasks to the same workstation may lead to assembly lines that exhibit increased robustness in real-world situations at the expense of a slightly increased cycle time. The prototypical example of such an approach, Agrawal’s Largest Set Rule (LSR), utilizes backward work relatedness to assign a set of cohesive tasks to the proper workstation. In this paper, we enhance the performance of the original LSR algorithm through the concept of bi-directional work relatedness, where backward and forward relationships are taken into consideration for task assignments. The proposed concept leads to comparable cycle time and improved work relatedness. Applying this novel concept to a benchmark ALB problem demonstrates the feasibility and applicability of the proposed approach.

scholarly journals Solving assembly line balancing problem using heuristic: a case study of power transformer in electrical industry

2020 ◽  
Vol 17 (2) ◽  
pp. 850
Author(s):  
Nurhanani Abu Bakar ◽  
Mohammad Fadzli Ramli ◽  
Mohd Zakimi Zakaria ◽  
Tan Chan Sin ◽  
Hafiz Masran
Keyword(s):  
Production Line ◽  
Assembly Line ◽  
Power Transformer ◽  
Assembly Line Balancing ◽  
Idle Time ◽  
Line Balancing ◽  
Heuristic Methods ◽  
Electrical Industry ◽  
Assembly Line Balancing Problem

<p>Currently, problem in assembly line has created so much attention, particularly in manufacturing area. Similar to this case study as they faced with problems regarding workstation in production line of electrical industry. There exist some cases where workstations in assembly line are experienced with bottleneck and suffered from high idle time. Thus, four heuristic methods are used for minimizing number or workstations and improve the bottleneck problems at the same time. In this case study, LCR, RPW and LPT have successfully minimized the number of workstations from 19 to 16. This solution has affected the layout of assembly line. Different from SPT that manage to improve the bottleneck among workstations by reducing number of workstations from 19 to 17 without changing the line layout. Therefore, both solution has brought an option for an engineer to choose which decision to be used in this assembly line in order to increase the line efficiency.</p>

scholarly journals Increased line efficiency by improved work methods with the ECRS concept in a washing machine production: a case study

2020 ◽  
Vol 4 (1) ◽  
pp. 13-29
Author(s):  
Asariella Findya Octa Pertiwi ◽  
Rahmaniyah Dwi Astuti
Keyword(s):  
Production Process ◽  
Production Line ◽  
Assembly Line ◽  
Line Balancing ◽  
Assembly Process ◽  
Assembly Lines ◽  
Washing Machine ◽  
Work Method ◽  
Machine Assembly

The Assembly line is the assembly process that is carried out based on the order of the production process in the production line. The problem that is often found in assembly lines is bottleneck conditions where some material piled up at the station. This situation indicates an imbalance in the production line. The improvement of the work method is one of the effective ways that can increase line efficiency. This study presents an increase in line efficiency by improving working methods in a washing machine assembly line of PT.X. The study aimed to increase the value of line efficiency by improving work methods. In this study, improvements were made using the line balancing method and Eliminate, Combine, Rearrange, Simplify (ECRS) concept. The results that have been done, the obtained value of line efficiency for washing machine products is 76.76%. This value has not reached the company's productivity target of 99.50%. Therefore it is necessary to improve the assembling line to increase the value of product production. The proposed improvements made with improvements to the work methods on the assembling line obtained 89.38% results is to increase the amount of line efficiency by improving work methods.

scholarly journals ANALISIS EFEKTIFITAS DAN EFESIENSI TATA LETAK PABRIK TAHU SUPER AFIFAH DI KELURAHAN NUNU KECAMATAN TATANGA PALU BARAT

2020 ◽  
Vol 4 (3) ◽  
pp. 253-264
Author(s):  
Arham Arham ◽  
Asngadi Asngadi ◽  
Syamsuddin Syamsuddin
Keyword(s):  
Production Process ◽  
Material Flow ◽  
Quantitative Research ◽  
Idle Time ◽  
Line Balancing ◽  
Production Facility ◽  
Effectiveness And Efficiency ◽  
Initial Layout

This study aims to analyze the effectiveness and efficiency of layout inTahu Super Afifah Factory in Nunu Village, Tatanga District, West Palu. The type of research used is quantitative research using line balancing method and travel chart. Result of research by using line balancing method obtained efficiency of tofu production process equal to 90,04% with idle time 9,96%. While the result of travel chart method obtained new design layout of production facility of factory know Super Afifah which more effective equal to 441,74 material flow load from initial layout equal to 627,38 material flow load. By comparison 185.64 material flow load or 29.58%. Penelitian ini bertujuan untuk menganalisis efektivitas dan efesiensi tata letak pada Pabrik Tahu Super Afifah di Kelurahan Nunu Kecamatan Tatanga Palu Barat. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan menggunakan metode line balancing dan travel chart. Hasil penelitian dengan menggunakan metode line balancing diperoleh efesiensi dari proses produksi tahu sebesar 90,04% dengan waktu menganggur 9,96%. Sedangkan hasil dari metode travel chart diperoleh rancangan baru tata letak fasilitas produksi pabrik tahu Super Afifah yang lebh efektif sebesar 441,74 beban aliran bahan dari tata letak mula-mula sebesar 627,38 beban aliran bahan dengan perbandingan 185,64 beban aliran bahan atau 29,58%.

scholarly journals The Packing Heuristic For Assembly Line Balancing Problems

2011 ◽  
Vol 3 (3) ◽  
pp. 122 ◽  
Author(s):  
Francis J. Nourie ◽  
Enrique R. Venta
Keyword(s):  
Assembly Line ◽  
Heuristic Method ◽  
Assembly Line Balancing ◽  
Computational Effort ◽  
Line Balancing ◽  
Heuristic Methods ◽  
Computational Results ◽  
Simple Heuristic

This paper describes the packing principle for assembly line balancing problems, develops a simple heuristic method based on the principle, and explores the implications of the principle for other methods. Computational results shows that the proposed method compares favorably with two well-known heuristic methods and that the principle can be applied to improve these two methods with small additional computational effort.

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