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Journal articles on the topic 'Warehouse layout'
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1
Phan, Mai Ha, Ha Quang Thinh Ngo, Tien Trung Kieu, and Linh Y. Thai. "Redesigning Finished Product Warehouse Layout - A Case Study." Applied Mechanics and Materials 902 (September 2020): 103–13. http://dx.doi.org/10.4028/www.scientific.net/amm.902.103.
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System engineering methods are often used to design complex systems like airplanes. However, this method is also useful to propose solutions to redesign logistics systems such as warehouses and transport systems. This paper will apply system engineering in analyzing the late order problem at a pesticide company, thereby surveying stakeholders needs for warehouse re-designing. The functional analysis in the warehouse will be carried out in the concept analysis section to propose warehouse’s layout redesign alternatives that based on the demand of storage capacity and throughput. The authors also used the AHP method to select the final design layout. The detailed design section builds the operation process for the warehouse as well as the codification for commodity storage slots along with these tables forms that support for warehouse management. These solutions increase warehouse performance as well as the utilization in warehouses when applied in practice. Therefore, the system engineering method should be used in warehouse’s redesign
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Zhang, Z. Y., Y. Liang, Y. P. Hou, and Q. Wang. "Designing a warehouse internal layout using a parabolic aisles based method." Advances in Production Engineering & Management 16, no. 2 (June 25, 2021): 223–39. http://dx.doi.org/10.14743/apem2021.2.396.
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Refined layout is a basis of warehousing efficiency. Straight aisle is a typical feature of current warehouse internal layouts. The purpose of this paper is to explore the possibility of using curve aisles for warehouse layout. By Choosing typical non-traditional layouts and transforming their inclined cross-aisle trajectory into parabola, two parabolic aisle layouts, parabolic Flying-V and parabolic Fishbone, are constructed. For unit-load warehouses, based on the morphological characteristic analysis and the parabolic types selection, the picking distance model and the cross-aisle length formula are presented. Interval Numerical Simulation Method (INSM) and Genetic Algorithms (GA) are adopted to solve the model respectively in order to verify the results. This research breaks through the realistic situation of straight aisle leading warehouse layout, and enriches the relevant layout theory. The calculation results of 100 warehouses with different sizes show that the picking distance of parabolic Flying-V could be reduced by 0.22-0.62 % compared with the straight layout, and the theoretical possible improvement space has been compressed by 2.42-12.26 %. Its length of cross-aisle is shortened by -0.03-3.10 %. The picking distance of parabolic Fishbone could be only reduced by 0.02-0.04 %. The theoretical possible improvement space has been compressed by 1.27-1.83 %. But its length of cross-aisle will increase by 4.63-19.50 % significantly. We believe that the layout of non-rectangular complex special-shaped warehouses based on curve trajectory aisles would become an important research topic. In addition, after some necessary modifications to the objectives and constraints, the proposed method in this paper may also be used for the arrangement of machines and devices in a workshop in principle.
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Zhang, Z. Y., Y. Liang, Y. P. Hou, and Q. Wang. "Designing a warehouse internal layout using a parabolic aisles based method." Advances in Production Engineering & Management 16, no. 2 (June 25, 2021): 223–39. http://dx.doi.org/10.14743/apem2021.2.396.
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Refined layout is a basis of warehousing efficiency. Straight aisle is a typical feature of current warehouse internal layouts. The purpose of this paper is to explore the possibility of using curve aisles for warehouse layout. By Choosing typical non-traditional layouts and transforming their inclined cross-aisle trajectory into parabola, two parabolic aisle layouts, parabolic Flying-V and parabolic Fishbone, are constructed. For unit-load warehouses, based on the morphological characteristic analysis and the parabolic types selection, the picking distance model and the cross-aisle length formula are presented. Interval Numerical Simulation Method (INSM) and Genetic Algorithms (GA) are adopted to solve the model respectively in order to verify the results. This research breaks through the realistic situation of straight aisle leading warehouse layout, and enriches the relevant layout theory. The calculation results of 100 warehouses with different sizes show that the picking distance of parabolic Flying-V could be reduced by 0.22-0.62 % compared with the straight layout, and the theoretical possible improvement space has been compressed by 2.42-12.26 %. Its length of cross-aisle is shortened by -0.03-3.10 %. The picking distance of parabolic Fishbone could be only reduced by 0.02-0.04 %. The theoretical possible improvement space has been compressed by 1.27-1.83 %. But its length of cross-aisle will increase by 4.63-19.50 % significantly. We believe that the layout of non-rectangular complex special-shaped warehouses based on curve trajectory aisles would become an important research topic. In addition, after some necessary modifications to the objectives and constraints, the proposed method in this paper may also be used for the arrangement of machines and devices in a workshop in principle.
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Cardona, Luis F., and Kevin R. Gue. "Layouts of Unit-Load Warehouses with Multiple Slot Heights." Transportation Science 54, no. 5 (September 2020): 1332–50. http://dx.doi.org/10.1287/trsc.2020.0993.
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We describe a method to generate layouts for unit-load warehouses that use multiple slot heights as a way to maximize warehouse space utilization. The problem has two parts: slots must be arranged into rack-bays, and rack-bays must be arranged into a layout. We describe two methods for the first subproblem, depending on whether the warehouse has directed picking and put-away. For the second, we describe a simulation model and a greedy procedure based on the duration-of-stay storage policy. We observe significant benefits of using multiple slot heights in unit-load warehouses with respect to footprint, expected travel time, and cost of racking. For a typical warehouse, we expect space savings between 25% and 35%, depending on the number of slot types, and savings of between 15% and 25% in annual operating costs.
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Liu, Huwei, Fan Wang, Junhui Zhao, Jianglong Yang, Chunqiao Tan, and Li Zhou. "Performance Analysis of Picking Path Strategies in Chevron Layout Warehouse." Mathematics 10, no. 3 (January 27, 2022): 395. http://dx.doi.org/10.3390/math10030395.
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Order picking is the part with the highest proportion of operation cost and time in the warehouse. The characteristics of small-batch and multi-frequency current orders reduce the applicability of the traditional layout in the warehouse. Besides this, the improvement of the layout will also affect the picking path, such as the Chevron warehouse layout, and at present, there is a lack of research on order picking with multiple picking locations under non-traditional layouts. In order to minimize the order picking cost and time, and expand the research in this field, this paper selects the Chevron layout to design and describe the warehouse layout, constructs the picking walking distance model of Return-type, S-type and Mixed-type path strategies in the random storage Chevron layout warehouse, and uses the Cuckoo Search (CS) algorithm to solve the picking walking distance generated by the Mixed-type path. Compared with the existing single-command order picking research, the order picking problem of multi picking locations is more suitable for the reality of e-commerce warehouses. Moreover, numerical experiments are carried out on the above three path strategies to study the impact of different walking paths on the picking walking distance, and the performance of different path strategies is evaluated by comparing the order picking walking distance with the different number of locations to be picked. The results show that, among the three path strategies, the Mixed-type path strategy is better than the Return-type path strategy, and the average optimization proportion is higher than 20%. When the number of locations to be picked is less than 36, the Mixed-type path is better than the S-type path. With the increase of the number of locations to be picked, the Mixed-type path is gradually worse than the S-type path. When the number of locations to be picked is less than 5, the Return-type path is better than the S-type path. With the increase of the number of locations to be picked in the order, the S-type path is gradually better than the Return-type path.
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Shima, Putri, and Akhmad Syakhroni. "ANALYSIS OF THE LAYOUT OF THE FINISHED GOODS WAREHOUSE USING THE SHARED STORAGE METHOD TO INCREASE STORAGE EFFECTIVENESS IN PT. NCS LOGISTIC LINK." Journal of Applied Science and Technology 1, no. 01 (February 15, 2021): 26. http://dx.doi.org/10.30659/jast.1.01.26-35.
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PT NCS LOGISTIC LINK is a Transportation Management Service company or commonly called Freight Forwarding. PT. NCS is also engaged in the rental of Warehouses. In the Warehouse at PT NCS LOGISTIC LINK, there is a problem with the layout of the storage of goods in the Warehouse which is still not optimal because the cost of Material Handling in the company is still high and also PT NCS LOGISTIC LINK, a company that manages warehouse rental for companies manufacture. The problems faced by PT NCS LOGISTIC LINK today are the problems that are often faced is the handling of incoming and outgoing goods in the company's warehouse, the company still does not have a defined system, so that the placement of goods in the warehouse is not neatly arranged so that the warehouse seems narrow. Likewise, the warehouse line or line layout is not clear, the placement of finished goods for both export and local products is placed in one location with the material (Completely Knock Down / CKD) in one warehouse location, there is no barrier between the goods belonging to one customer and another. other things, goods are placed to close the road area or forklift lanes and warehouse doors, and goods that have entered earlier are closed with new incoming goods, thus hampering the process of handling goods. With limited storage space, companies are required to use space effectively and efficiently so that storage activities are not hampered and can find the best layout that is more effective and efficient and does not hamper the delivery process. The method used in warehousing management is a shared storage approach in which the products that have the most shipping frequency and the ones that frequently go in and out are brought close to the entrance to minimize the distance of material handling movement. The results of the shared storage approach can minimize the material handling distance of the proposed layout is 1386 m, while the previous condition, the initial layout distance was 1900 m. Has a total range of 514 meters of total mileage. This means that the layout of the proposal could shorten the mileage through which warehouse workers take goods.
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Le, Xiaobing, Xueliang Wang, and Zhiheng Huang. "Research on optimization of warehouse layout based on SLP theory-- Take Deppon Express Warehouse for example." E3S Web of Conferences 292 (2021): 02050. http://dx.doi.org/10.1051/e3sconf/202129202050.
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This paper takes Deppon Express Company as an example to study the optimization of the layout of the store warehouse under the standardized operation mode. First of all, it Analyzes warehouse layout present situation of the express company, and gets the problems of the warehouse layout of the company, for example, the layout of the lack of scientific, as well as part of the operational areas of position arrangement is not reasonable and unreasonable action path which leads to the whole business operation efficiency is low. Finally, thus using SLP to solve those problems, and put forward the company store aisle warehouse layout optimization strategy of management according to the comprehensive relations preliminary to the data warehouse layout optimization figure.
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Wang, Juan, Ya Fan Li, and Guang Hua. "Research on Problems of Logistics Park Layout Optimization Based on Low-Carbon Concept." Advanced Materials Research 962-965 (June 2014): 1654–59. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.1654.
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Around the goal of building a low-carbon logistics park, three aspects about layout optimization related issues which are functional area layout, warehouse layout and road layout are mainly studied in this paper. Functional areas dividing and layout methodology of a low-carbon logistics park are proposed in this paper. Summarizes common methods and main considerations of warehouse layout on the basis of warehouse operation process. Finally proposes methods of road network layout and optimizations of the layout according to the division of different levels of road network in logistics park.
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Roodbergen, Kees Jan, and Iris F. A. Vis. "A model for warehouse layout." IIE Transactions 38, no. 10 (October 2006): 799–811. http://dx.doi.org/10.1080/07408170500494566.
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Sari, Tika Purnama, Ari Yanuar Ridwan, and Rio Aurachman. "Designing Floor Tile Warehouse Layout Using Heuristic Approach Method to Increase Warehouse Capacity and Reduce Travel Distance." International Journal of Innovation in Enterprise System 1, no. 01 (December 31, 2017): 44–52. http://dx.doi.org/10.25124/ijies.v1i01.8.
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XYZ Company is a distributor focused on distributing floor and wall ceramic tiles. XYZ Company has its own warehouse for storing finished goods with Last In First Out rotation. The XYZ Company Warehouse has an area of 12,312 m2 with floor stack system. An issue currently risen to the warehouse is that the warehouse is currently overcapacity that urges the company to store some of its SKUs to be stored out of the block or even outside the warehouse. The overcapacity causes some problems including accessibility problem, distribution of storage and retrieval activities, and damaged product. In addition, higher throughput items allocation were not placed near to the input/output point so the material handling went through long travel to do its activities and it caused higher total travel distance. This research is focused on determining the warehouse layout to increase warehouse storage capacity and reduce travel distance. The procedure taken to solve the issue is by redesigning warehouse layout through heuristic approach method. The heuristic approach method is comprised by algorithms that can determine dimensions of storage zone and material assignment needed in designing warehouse layout. It is aimed at having some combinations of lane depths and storage zones to increase the warehouse storage capacity by considering the throughput of each SKU. The next step is allocating the items so it can reduce the monthly travel distance. The proposed design layout, shows that warehouse capacity increases by 35.53% or 5,319 pallet positions and monthly travel distance decreases by 24.58% or 216,032 meters.
Keywords—heuristic approach, travel distance, warehouse layout.
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Yang, Lv Qing, and Qiang Yan. "Research of Intelligent Warehouse Layout Base on Genetic Algorithm and Dynamic Programming." Advanced Materials Research 989-994 (July 2014): 1547–50. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.1547.
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Intelligent warehouse management can effectively improve the work efficiency and decreasing operating costs for a company, and the reasonableness of warehouse layout has played a very important role in it. This paper will aim at the warehouse layout problem, analyze the superiority of genetic algorithm and dynamic programming for the problem, and base on the genetic algorithm, integrating the thoughts of dynamic programming to put forward an optimization strategy. It can improve the accuracy and efficiency of genetic algorithm by a modified encoding scheme and fitness function, in order to put forward a more optimal scheme of warehouse layout, provide the information base for following operation of warehouse management, and improve the intelligent level of warehouse management system.
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Saderova, Janka, Lukasz Poplawski, Michal Balog Jr, Silvia Michalkova, and Martin Cvoliga. "LAYOUT DESIGN OPTIONS FOR WAREHOUSE MANAGEMENT." Polish Journal of Management Studies 22, no. 2 (December 2020): 443–55. http://dx.doi.org/10.17512/pjms.2020.22.2.29.
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Tranggono, Tranggono, Nur Rahmawati, and Kinanti Resmi Hayati. "Warehouse layout Design in Manufacturing Industry." International Journal of Eco-Innovation in Science and Engineering 2, no. 01 (May 25, 2021): 14–19. http://dx.doi.org/10.33005/ijeise.v2i01.36.
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Manufacturing companies spend a significant amount of time and money designing or redesigning their facilities. It is an extremely important function that must be addressed before products are produced. Manufacturing company’s common problem is that they do not have a pattern for placing goods in their warehouse. It leads to problems such as difficulties when taking the product from storage. With storage procedures like this, it can make long total distance for loading and unloading the goods. Dedicated storage policy where storage is done at a certain location according to the type of item needs to be made. The advantage of this method is ease in finding goods as the location can be tailored to the shape of the goods. The research results show an efficiency of the displacement distance of 4117 m, the initial layout distance of moving goods is 5740 m, while in the proposed layout it is 1622 m.
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Putra, Ardi Kelana, Ari Yanuar Ridwan, and Rio Aurachman. "Design of Storage Allocation Using Interaction Frequency Heuristic-Order Oriented Slotting Approach to Reduce Delay Time on Traveling Searching Activities in Refinery Unit V Warehouse PT XYZ." Jurnal Rekayasa Sistem Industri 7, no. 1 (April 30, 2018): 1. http://dx.doi.org/10.26593/jrsi.v7i1.2636.1-10.
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<p><strong> </strong>Refinery Unit (RU) V is a processing company owned by PT XYZ located in Balikpapan. Refinery Unit V has twelve warehouses with four warehouses being the main focus in this research of RGM, RMS, RIN, and RSP used to store products for refinery maintenance processes. In the initial conditions, there is a delay in traveling searching activities. The occurrence of delay in traveling searching activity caused by the absence of details of the product location clearly. The proposed product allocation is using Interaction Frequency Heuristic-Order Oriented Slotting method. The last step is to create a new layout for each RU V warehouse.</p><p>The first step is to calculate the cycle time for each work order list by calculating the distance between the storage point with the point of I / O based on the aisle distance calculation. Next is to compare between the cycle time of each work order list with the standard time of the warehouse, so it will know the percentage of work order list that experienced delay for one year. Next, allocate product storage based on the popularity value of the product and the value of the interaction frequency between the products. The final step is to simulate using new work order list based on the proposed allocation layout to know the effect of change from the proposed layout. The result of this research is a new layout for each warehouse. All stock taking performance are better than the standard time while the exisiting condition violate the standard time.</p>
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Eglit, Y. Y., К. Y. Eglit, A. R. Balybin, and T. А. Vasil`eva. "JUSTIFICATION OF THE LAYOUT OF THE REFRIGERATED WAREHOUSE." System analysis and logistics 1, no. 27 (2021): 59–64. http://dx.doi.org/10.31799/2077-5687-2021-1-59-64.
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The article is devoted to the issues of justifying the layout of a refrigerated warehouse. This takes into account the peculiarity of the refrigerated warehouse associated with the need to comply with the temperature regime, indicators of the efficiency of technological processes of the warehouse and other requirements necessary for storing perishable goods.
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Febiyanti, Juliani. "Finished Product Warehouse Layout Design Using Shared Storage Method." Jurnal Mekintek : Jurnal Mekanikal, Energi, Industri, Dan Teknologi 11, no. 1 (April 30, 2020): 14–17. http://dx.doi.org/10.35335/mekintek.v11i1.8.
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PT. XYZ is a private company engaged in the business of producing ceramics. The problem in the current warehouse is the presence of defective ceramic products due to irregular placement of finished products. Irregular placement of ceramic products, which can cause inefficiency in picking time and make it difficult for workers because of the limited space for movement that can hinder the movement of workers on the production floor. The above problems can be overcome by using the Shared storage method where goods are placed in the storage area closest to the entrance-exit (I/O) door. This method would be better used in types of factories that have the same product dimensions or not much different. The lack of good procedures for arranging goods in the warehouse causes problems in the warehouse, so that the warehouse seems cramped and less organized. The condition of the warehouse layout that is not based on a comprehensive layout design can lead to inefficiency in the time of taking and storing materials and making it difficult for operators to handle materials due to warehouse limitations. In this case, the process of placing goods in the warehouse at the ceramic factory of PT. XYZ will be arranged to reduce the forklift movement distance shorter which can be seen from the results of the proposed design on the layout of the finished product placement in the warehouse. Looking at the design of the proposed ceramic product warehouse layout, the percentage of total travel distance savings in the finished product warehouse is 37.76%.
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Kusnadi, Kusnadi, Asep Erik Nugraha, and Wahyudin Wahyudin. "ANALISA PENERAPAN LEAN WAREHOUSE DAN 5S+SAFETY DI GUDANG PT. NICHIRIN INDONESIA." Jurnal Media Teknik dan Sistem Industri 2, no. 1 (May 11, 2018): 1. http://dx.doi.org/10.35194/jmtsi.v2i1.270.
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Abstract—The company has a problem in warehouse layout arrangement so it will cause some kind of waste in the warehouse such as long searching time when searching spare parts in warehouse, transportation time when bringing material to warehouse or from warehouse to outside warehouse and transportation time at time of arrangement of material to storage shelf. Besides the problem that is noticed is the handling of discontinue material and the completeness of safety for warehouse operators. The purpose of this study can know the whole activity and the kinds of waste that occurred, so that can be done to the improvement of activity in the storage. The method used in measurement using fishbone diagram, and use Tools 5S + Safety. Based on the calculation that utility use of warehouse space owned raw material PT. Nichirin Indonesia is close to 70%. Layout raw material for now 77% of raw material is already used for material storage. After the layout improvements, the utility of raw material usage is reduced to 37.11%. various wastes that occur among others, Waiting time on goods delivery activities from suppliers, Transportation time on activities to bring goods from outside to the receiving area, Waiting time because the material must wait arranged by the admin / operator who works, Transportation time at the time of setting goods to shelf and Searching time on activities to find material for production needs. To reduce the waste that occurred among others, Add material handling in the form of trolley goods and ladder to shorten the transportation time, Make changes to warehouse layout and Provide labeling / coding on each area of the material rackKeywords: Waste; Layout raw material; Fishbone diagram; Tools 5S + Safety
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Hidayat, R. Erik, and Boy Isma Putra. "Re-Layout Layout of Material Warehouse Using Dedicated Storage Method at PT. A B C." PROZIMA (Productivity, Optimization and Manufacturing System Engineering) 3, no. 2 (March 9, 2021): 55–61. http://dx.doi.org/10.21070/prozima.v3i2.1270.
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PT. ABC is one of the companies that consentration in steel construction. The company has an extensive warehouse perfectly adequate. But the problems faced by PT. ABC in warehouse goods product company has no arrangements regarding the layout of raw materials, so at this time to adjust the position of the storage and preparation of raw materials, made by placing the material in an irregular position and randomly depending on the position of the empty warehouse. As a result, the time period of materials so long and the production becomes inhibited. The method used in this research is by using methods dedicated storage. This method is used to minimize time and comparing the activity mileage outgoing or incoming raw materials. From the analysis results obtained value is 8258.77 meter distance. Recommendations for improvement given that create a new layout for the arrangement of raw materials in PT. A B C
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Pandit, R., and U. S. Palekar. "Response Time Considerations for Optimal Warehouse Layout Design." Journal of Engineering for Industry 115, no. 3 (August 1, 1993): 322–28. http://dx.doi.org/10.1115/1.2901667.
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We present a queueing theoretic model of a rectangular warehouse with multivehicle material handling system to study the effect of warehouse design on the response time. The response time of the material handling system is shown to decrease with districting of the warehouse into service zones. An iterative procedure is presented for districting and optimal locations of input/output points. The effect of the rate of arrival of calls on optimal door location is shown to be significant.
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Wahyudi Abdul, Fino, and Muhammad Rizki Ramadhan. "Analisis Pengaruh Layout Penyimpanan Bahan Baku terhadap First In First Out berdasarkan Hasil Jajak Pendapat Karyawan (Studi pada PT Indofood CBP Sukses Makmur TBK Divisi Packaging Purwakarta)." Jurnal Logistik Indonesia 4, no. 2 (October 31, 2020): 114–26. http://dx.doi.org/10.31334/logistik.v4i2.1113.
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In a manufacturing company, the role of a warehouse for raw materials (storage) and warehouse for finished products (warehouse) is very important. Because it is impossible for the raw materials that have been ordered directly to be placed on the production floor. So it is with the finished product. It is also impossible for the resulting product to be distributed directly to consumers. This causes the need for a warehouse with a good layout. The aim of this research is to obtain the results of the analysis of the effect of the storage layout of raw materials on firsti in first out (FIFO). The data sources used are primary and secondary company data, as well as data obtained from the company. The theoretical basis used is the theory of influence, layout, and First In First Out. Based on the analysis of employee perception assessment data, it is concluded that the storage layout of raw materials has an effect on the FIFO system
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Bortolini, Marco, Francesco Gabriele Galizia, Mauro Gamberi, and Francesco Gualano. "Integration of single and dual command operations in non-traditional warehouse design." International Journal of Advanced Manufacturing Technology 111, no. 9-10 (October 28, 2020): 2461–73. http://dx.doi.org/10.1007/s00170-020-06235-4.
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Abstract Non-traditional warehouses rise as effective solutions to shorten the travelled distances to store and retrieve unit loads, adding aisles crossing the parallel racks. Multiple warehouse configurations are proposed by the literature discussing the enhancements toward standard layouts. In previous contributions, the authors introduced the diagonal cross-aisle model, concluding about its positive impact on the handling performances under single command operations. This paper extends the previous works, integrating dual command operations, through an original analytic model supporting the design of non-traditional warehouses with a couple of symmetric straight diagonal cross-aisles and random storage assignment strategy. The closed-form expressions to compute the expected cycle travel distances are provided, optimising the aisle position. An industrial case study applies the model, getting distance savings ranging from 11 to 17%, compared to standard layout and further considering the loss of storage space due to the presence of the additional aisles.
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Firmansyah, Adi, and Lukmandono Lukmandono. "Warehouse Relayout Design with Weighted Distance Method to Minimize Time Travel." Petra International Journal of Business Studies 3, no. 1 (May 19, 2020): 1–8. http://dx.doi.org/10.9744/ijbs.3.1.1-8.
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Global competition between companies is becoming increasingly stringent, resulting in companies having to understand their customers better. Customers no longer only need quality products, but also need excellent and timely service. To meet the desires of these consumers, the company must create an effective and efficient work system. PT IJS is a warehouse engaged in logistics services in the Perak area of Surabaya. One of the services provided by PT IJS is bonded warehouse logistic services. A bounded warehouse owned is currently not able to provide maximum service because there are still many late deliveries that do not send goods to the port, and there is a closing time that is detrimental to the customer. The length of the delivery process is due to several factors, one of which is a less effective warehouse layout. Travel time is the time required for a vehicle to carry out activities loading goods PT. IJS from arrival to exit the warehouse. The method weighted distance is a mathematical model used to evaluate the layout based on proximity factors. The design of the layout design by using the technique weighted distance produces an alternative layout that shows calculation travel time a shorter
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Yang, Xiuqing, Xinglu Liu, Lijuan Feng, Jianquan Zhang, and Mingyao Qi. "Non-Traditional Layout Design for Robotic Mobile Fulfillment System with Multiple Workstations." Algorithms 14, no. 7 (June 30, 2021): 203. http://dx.doi.org/10.3390/a14070203.
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This paper studies the layout design of a robotic mobile fulfillment system with multiple workstations. This is a parts-to-picker storage system where robots hoist pods and bring them directly to the workstations for stationary pickers to retrieve required items. As few research efforts have focused on determining the optimal locations of workstations in such systems, we develop an integer programming model to determine the location of workstations to minimize the total traveling distance of robots. In addition, we investigate the near-optimal workstation location patterns (i.e., some general workstation configuration rules) in the context of both traditional and flying-V layouts. A series of experiments led to the following findings: (1) the flying-V layout can save 8∼26% of travel distance compared with the traditional layout, and the sacrifice of space use is only 2∼3% for medium or large warehouses; (2) instead of solving the optimization model, the proposed 2n rule and n+1 rule are simple and easily implemented ways to locate workstations, with travel distance gaps of less than 1.5% and 5% for traditional and flying-V layouts, respectively; and (3) the “optimal” cross-aisle angle (i.e., θ) in flying-V layout can be set as large as possible as long as the cross-aisle intersects the left or right edge of the warehouse.
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Sari, Tika Purnama, Ari Yanuar Ridwan, and Rio Aurachman. "Designing Floor Tile Warehouse Layout Using Heuristic Approach Method to Increase Warehouse Capacity and Reduce Travel Distance." International Journal of Innovation in Enterprise System 1, no. 01 (July 31, 2017): 44. http://dx.doi.org/10.25124/ijies.v1i01.12.
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XYZ Company is distributor that focused on distributes floor and wall tiles ceramic. XYZ Company has its own warehouse for storing finished good with Last In First Out (LIFO) rotation. XYZ Company’s warehouse has area of 12,312 m2 with floor stack system. The issued that currently raised is warehouse condition that is overcapacity so several SKUs are stored out of the block even placed outside the warehouse. The impact of overcapacity are accessibility problem, storage and retrieval activities are hampered, and damaged product. In addition, the allocation of higher throughput items were not placed near to the input/output point so the material handling went through long travel to do its activities and it caused higher total travel distance. This research focuses on determining the warehouse layout to increase warehouse storage capacity and reduce travel distance. The procedure to solve the issue will be done by redesign warehouse layout with heuristic approach method. The objective are a combination of lanes depths and storage zones to increase the warehouse storage capacity by considering throughput of each SKU. The next step is allocate the items so it can reduces the monthly travel distance. Based on proposed design layout, obtained the warehouse capacity increase by 35.53% or as much as 5,319 pallet positions and monthly travel distance is decreased by 24.58% or 216,032 meters.
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Azadeh, Kaveh, René De Koster, and Debjit Roy. "Robotized and Automated Warehouse Systems: Review and Recent Developments." Transportation Science 53, no. 4 (July 2019): 917–45. http://dx.doi.org/10.1287/trsc.2018.0873.
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Robotic handling systems are increasingly applied in distribution centers. They require little space, provide flexibility in managing varying demand requirements, and are able to work 24/7. This makes them particularly fit for e-commerce operations. This paper reviews new categories of automated and robotic handling systems, such as shuttle-based storage and retrieval systems, shuttle-based compact storage systems, and robotic mobile fulfillment systems. For each system, we categorize the literature in three groups: system analysis, design optimization, and operations planning and control. Our focus is to identify the research issue and operations research modeling methodology adopted to analyze the problem. We find that many new robotic systems and applications have hardly been studied in academic literature, despite their increasing use in practice. Because of unique system features (such as autonomous control, flexible layout, networked and dynamic operation), new models and methods are needed to address the design and operational control challenges for such systems, in particular, for the integration of subsystems. Integrated robotic warehouse systems will form the next category of warehouses. All vital warehouse design, planning, and control logic, such as methods to design layout, storage and order-picking system selection, storage slotting, order batching, picker routing, and picker to order assignment, will have to be revisited for new robotized warehouses.
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Cardona, Luis Felipe, Leonardo Rivera, and Héctor Jairo Martínez. "Analytical study of the Fishbone Warehouse layout." International Journal of Logistics Research and Applications 15, no. 6 (November 19, 2012): 365–88. http://dx.doi.org/10.1080/13675567.2012.743981.
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Nguyen Duc, Duy, Thong Tran Huu, and Narameth Nananukul. "A Dynamic Route-Planning System Based on Industry 4.0 Technology." Algorithms 13, no. 12 (November 25, 2020): 308. http://dx.doi.org/10.3390/a13120308.
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Due to the availability of Industry 4.0 technology, the application of big data analytics to automated systems is possible. The distribution of products between warehouses or within a warehouse is an area that can benefit from automation based on Industry 4.0 technology. In this paper, the focus was on developing a dynamic route-planning system for automated guided vehicles within a warehouse. A dynamic routing problem with real-time obstacles was considered in this research. A key problem in this research area is the lack of a real-time route-planning algorithm that is suitable for the implementation on automated guided vehicles with limited computing resources. An optimization model, as well as machine learning methodologies for determining an operational route for the problem, is proposed. An internal layout of the warehouse of a large consumer product distributor was used to test the performance of the methodologies. A simulation environment based on Gazebo was developed and used for testing the implementation of the route-planning system. Computational results show that the proposed machine learning methodologies were able to generate routes with testing accuracy of up to 98% for a practical internal layout of a warehouse with 18 storage racks and 67 path segments. Managerial insights into how the machine learning configuration affects the prediction accuracy are also provided.
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Rachman, Taufiqur. "Peningkatan Efisiensi Penanganan Material Melalui Perancangan Tata Letak Fasilitas dengan Integrasi Metode Konvensional Tata Letak dan Algoritma CORELAP." Jurnal METRIS 22, no. 02 (February 10, 2022): 92–106. http://dx.doi.org/10.25170/metris.v22i02.2917.
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Material handling methods determine the effectiveness and efficiency of a company. This research was conducted at PT. FIM which is a manufacturing company that produces food packaging made of plastic (plastic food grade packaging), which has ineffective and inefficient material handling problems. The main objective of this research is to design the facilities layout of PT.FIM to improve the efficiency of material handling. In this research, the integration of the conventional layout method and the CORELAP algorithm was used to determine the optimal work station layout. The research stage begins with calculation of the routing sheet based on the OPC, calculation of the floor area and making of ARC in the production area using the CORELAP algorithm method, while for other facility areas using the conventional layout method. The next stage is making ARD and AAD, and conducting MHPS analysis. From the results of this research obtained a layout design that requires the addition of 6 injection machines, a production floor area of 922m2, a raw material warehouse of 26.65m2, a finished materials warehouse of 63.96m2, a work-in-process warehouse of 85.28m2, supporting materials warehouse of 14.34m2, office area and other facilities area of 462m2. The resulting layout design has a material handling distance difference of 49.3m, and a cost difference of Rp.51,978, with a material handling cost efficiency of 78.67%.
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Fabiani, Nadya Adira, Parwadi Moengin, and Sucipto Adisuwiryo. "Perancangan Model Simulasi Tata Letak Gudang Bahan Baku dengan Menggunakan Metode Shared Storage pada PT. Braja Mukti Cakra." JURNAL TEKNIK INDUSTRI 9, no. 2 (July 16, 2019): 98–111. http://dx.doi.org/10.25105/jti.v9i2.4924.
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Braja Mukti Cakra (PT) is a company engaged in manufacturing that produces high-precision machined products, in the form of automotive components in Indonesia. Problems that occur at PT. Braja Mukti Cakra is in the warehouse of raw materials, where the laying of raw materials that are not optimal is due to the lack of naming and distribution of the types of raw materials on the shelves or pallets in the warehouse. This causes operators to have difficulty in finding raw materials to be sent to the production floor and causes the time to take raw materials to be long so that there will be delays in shipping to the production floor. The purpose of this study is to design a simulation model to improve the layout of the raw material warehouse from the storage area to the warehouse exit that can be used to evaluate the time taken for raw materials and the time of transfer of raw materials. In this study the first step is to evaluate the warehouse layout of raw materials using a checksheet to determine the condition of the current raw material warehouse and use a map of the raw material extraction process flow to determine the flow of the raw material extraction process. Next is the initial simulation model of raw material warehouse layout to understand the actual system. The model that has been built is then verified and validated. If the model is declared valid, improvements are made to existing problems by improving the warehouse layout of raw materials and the placement of existing raw materials using the shared storage method as a proposal for raw material warehouse layout. Standard raw placement, pay attention to raw materials that have the same purpose and are made into the same rack or pallet or located adjacent to the shelf or pallet to each other so as to get a shorter time in the shipping process. The number of proposed improvements in the raw material warehouse layout are 3 proposals. The first proposal is the addition of material handling, the second proposal uses the shared storage method and the third proposal uses shared storage methods and the addition of material handling. For the selection of the best proposals, the Benferonni method was used and used the results of the checksheet evaluation. The best proposal is the third proposal with the time of raw material collection and the transfer of raw materials to the warehouse exit which is equal to 71.18 hours. Compared with the initial simulation model which has the time to take raw materials and the transfer of raw materials to the warehouse exit of 122.23 hours. From this best proposal, it was obtained a time savings of 51.05 hours or 41.76%.
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Muharni, Yusraini, Ade Irman S M, and Yogi Noviansyah. "Perancangan Tata Letak Gudang Barang Jadi Menggunakan Kebijakan Class-Based Storage dan Particle Swarm Optimization Di PT XYZ." JURNAL TEKNIK INDUSTRI 10, no. 3 (November 30, 2020): 200–209. http://dx.doi.org/10.25105/jti.v10i3.8405.
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Intisari—Dalam proses penyimpanan pada gudang barang jadi PT XYZ menggunakan material handling berupa gantry crane, pada gudang barang jadi tidak adanya sistem baku dalam penyimpanan komponen Truss Bridge 60 (TB-60). Menurut prinsip tata letak gudang, komponen dapat disusun sesuai ukuran yang sama. Peletakkan komponen saat ini hanya berdasarkan slot yang kosong pada gudang. Hal ini menyebabkan jarak tempuh material handling menjadi lebih jauh yang berarti kurang efektif dan efisien. Perancangan tata letak gudang di PT XYZ ini bertujuan untuk mendapatkan ongkos material handling yang optimal dengan cara meminimasi jarak material handling sehingga kegiatan penyimpanan dapat berjalan secara efektif dan efisien. Diperlukan suatu penyelesaian menggunakan metode Class-Based Storage dan Particle Swarm Optimization yang diharapkan mendapatkan hasil tata letak yang optimal dengan memperoleh total ongkos material handling yang paling minimal. Perhitungan jarak material handling menggunakan pengukuran rectilinear. Hasil perhitungan ongkos material handling yang diperoleh pada layout eksisting adalah sebesar Rp 13.102.152,88 dengan ongkos material handling permeternya sebesar Rp 34.093,51/meter, pada layout usulan 1 menggunakan metode Class-Based Storage diperoleh ongkos material handling sebesar Rp 12.893.810,79 dengan ongkos material handling permeternya sebesar Rp 36.962,17/meter dan pada layout usulan 2 menggunakan metode particle swarm optimization diperoleh ongkos material handling sebesar Rp 12.068.528,51 dengan ongkos material handling permeternya sebesar Rp 34.093,51/meter. Maka ongkos material handling yang diperoleh dari layout eksisting dengan layout usulan 1 mengalami penurunan sebesar 1,59% dan pada layout eksisting dengan layout usulan 2 mengalami penurunan sebesar 7,89%. Usulan tata letak gudang barang jadi yang terbaik adalah dengan menggunakan metode Particle Swarm Optimization.Abstract—In the storage process in the finished goods warehouse PT XYZ uses material handling consisting of gantry cranes, in the finished goods warehouse there is no raw material system in the storage of Truss Bridge 60 (TB-60) components. According to the warehouse layout principle, components can be arranged according to the same size. Laying components is currently only available an empty slot in the warehouse. This causes the material handling distance to be further which means it is less effective and efficient. The design of the warehouse layout at PT XYZ aims to obtain optimal material handling costs by minimizing material handling distances, thus making storage locations run effectively and efficiently. A place is needed using the Class-Based Storage method and the herd particle optimization which is expected to get optimal layout results by obtaining the minimum total material handling costs. Calculation of material handling distance using rectilinear measurements. The results of the calculation of material handling costs obtained in the existing layout are Rp. 13,102,152.88 with the material handling fees per Rp. 12,893,810, 79 with the material handling cost per meter of Rp 36,962.17 / meter and in the layout valuing 2 using the particle swarm optimization method to obtain material handling costs of Rp 12,068,528.51 with the material handling cost of Rp 34,093.51 / meter. Then the cost of material handling obtained from the existing layout with the layout received 1 increased by 1.59% and in the existing layout with the layout received 2 an increase of 7.89% decrease. The best layout for finished goods warehouse is to use the Particle Swarm Optimization method.
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Cantini, Alessandra, Filippo De Carlo, and Mario Tucci. "Towards Forklift Safety in a Warehouse: An Approach Based on the Automatic Analysis of Resource Flows." Sustainability 12, no. 21 (October 28, 2020): 8949. http://dx.doi.org/10.3390/su12218949.
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Warehouse management is a discipline that has gained importance in recent decades. In the era of the Digital Revolution and Industry 5.0, to enable a company to attain a competitive advantage, it is necessary to identify smart improvement tools that help search for warehouse problems and solutions. A good tool to highlight issues related to layout and resource flows is the spaghetti chart which, besides being used to minimize waste according to lean philosophy, can also be used to assess warehouse safety and reliability and improve the plant sustainability. This article shows how to exploit “smart spaghetti” (spaghetti chart automatically generated by smart tracking devices) to conceive improvements in the layout and work organization of a warehouse, reducing the risk of collision between forklifts and improving the operators’ safety. The methodology involves automatically mapping the spaghetti charts (searching for critical areas where the risk of collision is high) and identifying interventions to be carried out to avoid near misses. “Smart spaghetti” constitutes a valuable decision support tool to identify potential improvements in the system through changes in the layout or in the way activities are performed. This work shows an application of the proposed technique in a pharmaceutical warehouse.
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Abidin, Nurfarahainie, Ahmad Afif Ahmarofi, and Anderes Gui. "Designing the Re-layout Finished Goods Warehouse through the Simulation Method." International Journal of Industrial Management 10 (March 5, 2021): 126–37. http://dx.doi.org/10.15282/ijim.10.1.2021.6052.
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The demand for gloves is increasing currently and mostly used in health facilities such as hospitals and clinics. Furthermore, laboratory facilities such as in university and schools also use gloves to handle equipment in the laboratory. Since pandemic Covid-19, personal hygiene emerged as the main concerned. Hence, not only the person who works in health facilities and laboratory, everyone used gloves, especially in the public place. Consequently, gloves demand is increasing tremendously. However, the manufacturer who produces gloves is suffering insufficient capacity in the goods warehouse due to a large number of production output. In this regard, this paper aims to improve one of the finished goods warehouse capacity that highly affected by the sudden increase in demand. An improvement of finished goods warehouse layout was developed by using a simulation tool to solve the lack of available space. It is found that the proposed layout can be fully utilized in the warehouse, thus increase the warehouse capacity efficiently.
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Firmansyah, Adi. "Desain Relayout Gudang dengan Metode Weighted Distance untuk Meminimasi Travel Time." Jurnal Sistem Teknik Industri 22, no. 1 (January 30, 2020): 1–14. http://dx.doi.org/10.32734/jsti.v22i1.3228.
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PT IJS is a company engaged in logistics services in the Perak area of Surabaya. PT IJS was founded in 1984 when the need for container depots was urgently needed around the Tanjung Tanjung port area to unravel the shipping queues and shorten licensing. One of the services provided by PT IJS is bounded warehouse rental services. Bounded warehouse owned by PT IJS is currently not able to provide maximum service because there are still many late deliveries which do not result in the sending of goods to the port and there is a closing time that is detrimental to the customer. The length of the delivery process is due to several factors, one of which is a less effective company layout. Travel time is the time required for a vehicle to carry out goods loading activities at PT. IJS from arrival to exit company. Based on travel time calculations when using the initial layout, the travel time value of T = 2002 seconds. The weighted-distance method is a mathematical model used to evaluate the layout based on proximity factors. The design of the relayout design using the weighted-distance method produces alternative layouts that produce shorter travel time calculations, alternative layout with T = 1849 seconds
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Firmansyah, Adi, and Lukmandono Lukmandono. "DESIGN RELAYOUT COMPANY WITH WEIGHTED DISTANCE METHOD FOR MINIMIZE OF TRAVEL TIME." Tibuana 3, no. 01 (January 31, 2020): 37–46. http://dx.doi.org/10.36456/tibuana.3.01.2199.37-46.
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PT IJS is a company engaged in logistics services in the Perak area of Surabaya. PT IJS was founded in 1984 when the need for container depots was urgently needed around the Tanjung Tanjung port area to unravel the shipping queues and shorten licensing. One of the services provided by PT IJS is bounded warehouse rental services. Bounded warehouse owned by PT IJS is currently not able to provide maximum service because there are still many late deliveries which do not result in the sending of goods to the port and there is a closing time that is detrimental to the customer. The length of the delivery process is due to several factors, one of which is a less effective company layout. Travel time is the time required for a vehicle to carry out goods loading activities at PT. IJS from arrival to exit company. Based on travel time calculations when using the initial layout, the travel time value of T = 2002 seconds. The weighted-distance method is a mathematical model used to evaluate the layout based on proximity factors. The design of the relayout design using the weighted-distance method produces alternative layouts that produce shorter travel time calculations, alternative layout with T = 1849 seconds.
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Bódis, Tamás, János Botzheim, and Péter Földesi. "Necessity and complexity of order picking routing optimisation based on pallet loading features." Acta Universitatis Sapientiae, Informatica 9, no. 2 (December 20, 2017): 162–94. http://dx.doi.org/10.1515/ausi-2017-0011.
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AbstractOrder picking is the most labour-intensive and costly activity of warehouses. The main challenges of its improvement are the synchronisation of warehouse layout, storage assignment policy, routing, zoning, and batching. Furthermore, the competitiveness of the warehouse depends on how it adapts to the unique customer demands and product parameters and the changes. The operators usually have to manage the picking sequence based on best practices taking into consideration the product stacking factors and minimising the lead time. It is usually necessary to support the operators by making e ective decisions. Researchers of the pallet loading problem, bin packing problem, and order picking optimisation provide a wide horizon of solutions but their results are rarely synchronised.
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Cardona, Luis F., Leonardo Rivera, and Héctor Jairo Martínez. "Analytical Optimization for the Warehouse Sizing Problem Under Class-Based Storage Policy." Ingeniería y Ciencia 12, no. 24 (November 2016): 221–48. http://dx.doi.org/10.17230/ingciencia.12.24.10.
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The aim of this paper study the impact of class-based storagepolicy basedon the optimal configuration of U-flow single command warehouses using aon an ABC product classification. For that purpose, the authors proposea non linear optimization model to minimize the expected travel distanceof the warehouse and use analytical methods to solve it.The most important contribution is to provide a mathematical proof thatregardless of the storage policy (It does not matter the specifics of theturnover pattern of the products), the optimal warehouse has a width thatis the double of its length, and the pick and deposit point should be locatedin the middle of the width of the warehouse.In addition, authors perform a sensitivity analysis that indicates that theoptimal solution is robust, meaning that a certain deviation from the op-timum layout does not impose a significant penalty on the expected traveldistance of the warehouse.
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Mohsen. "A framework for the design of warehouse layout." Facilities 20, no. 13/14 (December 2002): 432–40. http://dx.doi.org/10.1108/02632770210454377.
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Roodbergen, Kees Jan, Iris F. A. Vis, and G. Don Taylor. "Simultaneous determination of warehouse layout and control policies." International Journal of Production Research 53, no. 11 (November 18, 2014): 3306–26. http://dx.doi.org/10.1080/00207543.2014.978029.
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JARVIS, JAY M., and EDWARD D. MCDOWELL. "Optimal Product Layout in an Order Picking Warehouse." IIE Transactions 23, no. 1 (March 1991): 93–102. http://dx.doi.org/10.1080/07408179108963844.
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Januarny, Tiffany Dwi, and Cundo Harimurti. "PENGARUH TATA LETAK GUDANG TERHADAP KELANCARAN PRODUKTIVITAS BONGKAR MUAT DI GUDANG PT. NCT." Jurnal Logistik Indonesia 5, no. 1 (December 1, 2020): 55–64. http://dx.doi.org/10.31334/logistik.v5i1.1185.
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PT. NCT is a company engaged in domestic goods delivery service sector. As for the problem happened to PT. NCT is the placement of the finished items in the warehouse is still not in order and not match the place, this results the item confused with other item, and the hand pallet passageway and forklift became narrow, and complicated the storage items storage and taking process. The independent in this research was warehouse layout, meanwhile dependent variable was unloading productivity. This research used qualitative method. The population in this research was the warehouse employee of PT. NCT with samples of 30 respondents, with sampling technique used saturated sample technique. The data collecting technique used was questionnaire, each respondent was given 20 questions, then data processed with SPSS statistics analysis. Based on the result of this research, shows that there is significant and positive effect between variable of warehouse layout on variable of unloading productivity of 36,8%, meanwhile the other 63,8% explained by other variable out of the variable used in this research. Based on the result of calculation of simple linear regression test, obtained result of regression equation of Y = 5,917 + 0,874X. Meanwhile on the result of hypothesis test shows the value of t count > t table (4,035 > 2,048). This means H0 is rejected and H1 is accepted, or there are effects between Warehouse Layout on Unloading Productivity.
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Zakirah, Tamimi, Riyan Emeraldi, Octavianus M. Handi, Daliansyah Danil, and Tota Pirdo Kasih. "Warehouse layout and workflow designing at PT. PMS using systematic layout planning method." IOP Conference Series: Earth and Environmental Science 195 (December 14, 2018): 012026. http://dx.doi.org/10.1088/1755-1315/195/1/012026.
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Facchini, Francesco, Gianluigi De Pascale, and Nicola Faccilongo. "Pallet Picking Strategy in Food Collecting Center." Applied Sciences 8, no. 9 (September 1, 2018): 1503. http://dx.doi.org/10.3390/app8091503.
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This study aims to analyze the optimal warehouse layout for agricultural and food collecting centers that help small–medium farms to trade in the short food supply chain, by choosing among longitudinal, transversal, and fishbone layout. The developed model allows for the identification of the warehouse ensuring the least impact through inbound material handling, under both an economic and an environmental perspective. The analysis was carried out by using an analytical model to minimize the travelling time of the goods from picking to delivery area. The model considers the different turnover index from which four hypotheses were formulated to implement the results. The Carbon Footprint (CF) and Management Costs (MCs) were calculated by the picking time performance. Findings: Results show that the optimal warehouse layout can be identified after a careful consideration of the turnover indexes. However, for seasonality, the optimal design might be missed across the seasons. Practical implications: the analysis hereby presented is related to those collecting centers aiming to gather conspicuous amounts of seasonal food.
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Kholil, Muhammad, Indra Almahdy, Annisa Fortinina, and Adizty Suparno. "Implementation of Continuous Review System Method, Periodic Review System Method and Min-Max Method for Cheese Powder Inventory (Case Study: PT. Mayora Indah TBK)." International Journal of Advanced Technology in Mechanical, Mechatronics and Materials 1, no. 2 (August 7, 2020): 45–49. http://dx.doi.org/10.37869/ijatec.v1i2.16.
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PT. Sejahtera Mitra Lestari is a company engaged in manufacturing industrial chemicals specifically for the rubber industry. The irregular placement of finished products in the storage can cause errors in the delivery of goods due to good management for delivering goods with a relatively fast time. The effort to overcome this problem is through designing of warehouse layout with the Class-Based Storage method. Grouping based on popularity. Stages of research carried out by calculating the warehouse, the frequency of displacement, the number of storage places, the displacement distance. Improvements begin by sorting material based on frequency and variations of three classes, namely A, B, C. To design the layout, information is needed when making a new storage layout. The results showed that the layout of the optimal results could reduce the displacement distance by 17.19% in 6 months and allow space to be 73.91%.
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Marie, Iveline Anne, Cindy Claudia, and Adianto Adianto. "Optimasi Persediaan Bahan Baku Berdasarkan Pengali Lagrange serta Rancangan Tata Letak Gudang Menggunakan Metode Shared Storage." JURNAL TEKNIK INDUSTRI 10, no. 2 (July 31, 2020): 105–12. http://dx.doi.org/10.25105/jti.v10i2.8394.
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Intisari— CV ABC merupakan perusahaan yang memproduksi lapisan dalam sepatu. Bahan baku utamanya adalah kain polyester dengan ketebalan beragam (0,5; 0,6; 0,7; 0,8; 1,2; 1,3; 1,5) mm. CV ABC tidak menggunakan metode tertentu dalam pemesanan bahan baku, sehingga mengakibatkan kadang kelebihan serta kadang kekurangan persediaan bahan baku. Pemesanan bahan baku yang dilakukan oleh perusahaan juga tidak teratur sehingga menyebabkan terjadinya penumpukan bahan baku di gudang. Penumpukan di gudang mengakibatkan penempatan bahan baku menjadi tidak teratur dan jumlah stok sulit dihitung. Tujuan penelitian ini untuk menentukan jumlah persediaan yang sesuai dengan kapasitas gudang bahan baku berdasarkan Pengali Langrange serta memperbaiki rancangan tata letak gudang menggunakan metode Shared Storage. Mula-mula dilakukan perkiraan permintaan dengan pendekatan simulasi Monte Carlo. Tahap berikutnya adalah perhitungan lot pemesanan yang ekonomis dengan EOQ, optimasi kuantitas pemesanan dengan model persediaan pengali Lagrange. Hasil perhitungan akan menjadi dasar dalam pengaturan tata letak dengan menggunakan metode shared storage. Berdasarkan hasil optimasi dengan Pengali Lagrange, biaya persediaan dapat diturunkan hingga 34,13%. Selain itu, berdasarkan pengaturan ulang tata letak gudang, kapasitas gudang meningkat hingga 19,4%.Abstract— CV ABC is a company that manufactures layers in shoes. The main raw material is polyester fabric with varying thicknesses (0.5; 0.6; 0.7; 0.8; 1.2; 1.3; 1.5) mm. CV ABC does not use certain methods in ordering raw materials, resulting in sometimes excess and sometimes lack of raw material inventory. The ordering of raw materials made by the company is also irregular, causing a buildup of raw materials in the warehouse. Stacking in warehouses results in irregular placement of raw materials and difficult to calculate the amount of stock. The purpose of this study was to determine the amount of inventory in accordance with the capacity of the warehouse of raw materials based on the Langrange Multiplier and improve the layout design of the warehouse using the Shared Storage method. First the demand estimation is carried out using a Monte Carlo simulation approach. The next step is the calculation of economical order lots with EOQ, optimization of order quantities with the Lagrange multiplier inventory model. The calculation results will be the basis in setting the layout using the shared storage method. Based on the results of optimization with the Lagrange Multiplier, inventory costs can be reduced by 34.13%. In addition, based on the rearrangement of the warehouse layout, warehouse capacity has increased to 19.4%.
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Bortolini, Marco, Maurizio Faccio, Mauro Gamberi, and Francesco Pilati. "Assembly kits with variable part physical attributes: warehouse layout design and assignment procedure." Assembly Automation 40, no. 6 (October 16, 2020): 857–68. http://dx.doi.org/10.1108/aa-10-2019-0173.
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Purpose The kitting feeding policy creates kits with the parts of each product to assemble. Each kit contains elements with heterogeneous physical properties imposing heterogeneous logistic facilities and management solutions for storage and handling. The purpose of this paper is to present and apply a two-step procedure to design the part warehouse layout and to assign locations in case of kitting with high-variety part attributes. The proposed procedure aims at reducing the kitting travelled distance, shortening the picker paths, best positioning the components in the warehouse to enhance the possibility of creating kits through a single corridor access. The saturation of the warehouse and the minimization of the required storage space are also considered. Design/methodology/approach Starting from part categorization, the proposed two-step procedure, of general applicability, designs the component warehouse, sizing the corridors (Step 1) before clustering the kits in terms of part commonality and best-assigning clusters to corridors (Step 2) with the goal of reducing the travelled distance and saturating the available storage space. Findings A comparison model considers the traditional versus the proposed warehouse layout highlighting the potential saving in the picker travelled distance. A case study taken from the harvesting machine agricultural sector exemplifies the applicability and the practical implications of this research. Originality/value Elements of originality are the warehouse design strategy and the assignment model for parts based on their physical attributes and their occurrence in the assembly kits. Finally, the case study taken from industry, with a high number of components and part categories, adds value to the research making the proposed procedure able to address large-scale industrial problems.
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Viskup, Pavel, and Kateřina Gálová. "Warehouse design for production needs." MATEC Web of Conferences 292 (2019): 01054. http://dx.doi.org/10.1051/matecconf/201929201054.
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The presented article was written based on experience from the proposal of design of a new storage system for the needs of creating student theses. Based on cooperation of our faculty with one local company, we were invited as consultants to help with preparations of a new warehouse that will be located in the recently purchased building. The aim was to design a warehouse layout and design storage systems for the materials used in the manufacturing process and the storage of finished products.
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ZHAO, Zhi-yan. "Dynamic scheduling method on warehouse layout in distribution centers." Journal of Computer Applications 28, no. 2 (July 10, 2008): 484–87. http://dx.doi.org/10.3724/sp.j.1087.2008.00484.
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Phumchusri, Naragain, and Phuntira Kitpipit. "Warehouse Layout Design for an Automotive Raw Material Supplier." Engineering Journal 21, no. 7 (December 29, 2017): 361–87. http://dx.doi.org/10.4186/ej.2017.21.7.361.
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Wang, Wei. "The Field of Logistics Warehouse Layout Analysis and Research." Journal of Applied Mathematics and Physics 04, no. 06 (2016): 1120–23. http://dx.doi.org/10.4236/jamp.2016.46116.
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Matić, Dragan, Jozef Kratica, Vladimir Filipović, and Djordje Dugošija. "Variable neighborhood search for Multiple Level Warehouse Layout Problem." Electronic Notes in Discrete Mathematics 39 (December 2012): 161–68. http://dx.doi.org/10.1016/j.endm.2012.10.022.
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