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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

INVENTORY CONTROL SYSTEM : Optimization of production system and reliability

KALEEM ULLAH, MUHAMMAD January 2010 (has links)
The main idea of this research to solve the problem of inventory management for the paper industry SPM PVT limited. The aim of this research was to find a methodology by which the inventory of raw material could be kept at minimum level by means of buffer stock level.The main objective then lies in finding the minimum level of buffer stock according to daily consumption of raw material, finding the Economic Order Quantity (EOQ) reorders point and how much order will be placed in a year to control the shortage of raw material.In this project, we discuss continuous review model (Deterministic EOQ models) that includes the probabilistic demand directly in the formulation. According to the formula, we see the reorder point and the order up to model. The problem was tackled mathematically as well as simulation modeling was used where mathematically tractable solution was not possible.The simulation modeling was done by Awesim software for developing the simulation network. This simulation network has the ability to predict the buffer stock level based on variable consumption of raw material and lead-time. The data collection for this simulation network is taken from the industrial engineering personnel and the departmental studies of the concerned factory. At the end, we find the optimum level of order quantity, reorder point and order days.
2

The design of an integrated production and inventory control system for a traffic sign shop

Barbosa, Wagner January 1990 (has links)
No description available.
3

Lagerstyrningssystem för ökad flexibilitet / Inventory control system for increased flexibility

Altsäter, Erik January 2009 (has links)
Detta examensarbete har ägt rum vid Produktionsverkstad 1 (PV1) på Wexiödisk AB där diskmaskiner av huvtyp tillverkas. Syftet med detta examensarbete har varit att undersöka vilka lagerstyrningsmodeller som är lämpliga för att styra avdelningens materialflöden med. Arbetet har genomförts i två steg. Först behandlades artiklar unika för produkterna vid PV1, därefter artiklar gemensamma med andra produkter. Enligt modeller ur relevant litteratur utformades förslag på hur dessa kunde appliceras praktiskt. Förslagen presenterades och diskuterades med berörd personal som valde Tvåbingesystem 2. Ett test gjordes enligt principen ”den japanska sjön” vilket innebar lägre lagernivåer i lastbärarna. De problem som uppstod noterades. Resultatet blev att antalet artiklar som plockades i veckosatser minskades vilket skapat underlag för att minska administrationen av tillhörande plocklistor. Plockvagnen har kunnat tas bort vilket frigjort yta vid monteringsavdelningen. Förutsättningar finns att slå samman två plocklistor till en och därmed förenkla arbetet för förrådspersonalen. / This degree project has been performed at Production unit 1 (PV1) at Wexiödisk AB, where hood type washing machines is manufactured. The purpose of this project has been to investigate which inventory control models that could be suitable to control the section’s material supplies. The work has been accomplished in two steps. At first, items unique to products manufactured at PV1 were treated, followed by items common with other products. According models in relevant literature, suggestions were made to how the models could be applied practically. The suggestions was presented to and discussed with the parties concerned who chose Two-bin system 2. A trial was carried out according to the principle of “the Japanese river” which implied lowered inventory levels. The problems that occurred were noted. The result was that the number of items that was weekly picked and distributed was reduced which has created a basis to also reduce the administration of the systems picking lists. The item wagon has been removed which has cleared floor space at the assembly section. Conditions have been created to merge two picking lists into one and thereby simplify the work for the inventory staff.
4

Lagerstyrningssystem för ökad flexibilitet / Inventory control system for increased flexibility

Altsäter, Erik January 2009 (has links)
<p>Detta examensarbete har ägt rum vid Produktionsverkstad 1 (PV1) på Wexiödisk AB där diskmaskiner av huvtyp tillverkas. Syftet med detta examensarbete har varit att undersöka vilka lagerstyrningsmodeller som är lämpliga för att styra avdelningens materialflöden med. Arbetet har genomförts i två steg. Först behandlades artiklar unika för produkterna vid PV1, därefter artiklar gemensamma med andra produkter. Enligt modeller ur relevant litteratur utformades förslag på hur dessa kunde appliceras praktiskt. Förslagen presenterades och diskuterades med berörd personal som valde Tvåbingesystem 2. Ett test gjordes enligt principen ”den japanska sjön” vilket innebar lägre lagernivåer i lastbärarna. De problem som uppstod noterades. Resultatet blev att antalet artiklar som plockades i veckosatser minskades vilket skapat underlag för att minska administrationen av tillhörande plocklistor. Plockvagnen har kunnat tas bort vilket frigjort yta vid monteringsavdelningen. Förutsättningar finns att slå samman två plocklistor till en och därmed förenkla arbetet för förrådspersonalen.</p> / <p>This degree project has been performed at Production unit 1 (PV1) at Wexiödisk AB, where hood type washing machines is manufactured. The purpose of this project has been to investigate which inventory control models that could be suitable to control the section’s material supplies. The work has been accomplished in two steps. At first, items unique to products manufactured at PV1 were treated, followed by items common with other products. According models in relevant literature, suggestions were made to how the models could be applied practically. The suggestions was presented to and discussed with the parties concerned who chose Two-bin system 2. A trial was carried out according to the principle of “the Japanese river” which implied lowered inventory levels. The problems that occurred were noted. The result was that the number of items that was weekly picked and distributed was reduced which has created a basis to also reduce the administration of the systems picking lists. The item wagon has been removed which has cleared floor space at the assembly section. Conditions have been created to merge two picking lists into one and thereby simplify the work for the inventory staff.</p>
5

Förbättring och effektivisering av lagerhantering

Mirzaie Shra, Afroz, Vu, Felix January 2017 (has links)
The following thesis is based on a study on warehousing for an inventory of finished goods at Volvo Construction Equipment in Eskilstuna.   The inventory stores components consisting axles and transmissions. The project portrays a current situation analysis based on collected primary data, in form of interviews and observations. The current situation analysis includes a detailed process mapping, different warehouse layouts along with calculations. These aspects have been used in the development of improvement propositions.   The company is currently required to deliver components according to FIFO (First In, First Out), that is therefore fundamental when designing the following thesis. The project has however not been based on implementing FIFO, but only improving the existing management of FIFO. The current way of working with FIFO at the company is not ideal, consequently contributed to lack of storage space. This has eventually led to some components being stored outside the warehouse. It means that the components will not be weather-protected, which is one of the aspects that the company wishes to improve.   The Authors have presented various improvement propositions consisting investing in a: pallet, mobile- and a push back racking system and an improved inventory layout. These suggestions have been compared based on various factors that could be prioritized by the company. Examples on these key factors are: cost, volume utilization and enforcement of FIFO. The cost analysis for the racking systems are based on assistance from suppliers that has led to an enhanced cost comparison. The presented propositions have been delimited to ultimately being able to decide the final suggestion. For further studies, the company is recommended to invest in a pallet racking system, which is not only a beneficial economical solution, but also solves space shortage while all the components are stored with weather- protection. This will ultimately lead to improvement on managing FIFO in the finished goods inventory that the company strives after. / Detta examensarbete är grundat på undersökningar inom lagerhanteringen i färdigvarulagret (FVL) på Volvo Construction Equipment i Eskilstuna.   Färdigvarulagret lagerhåller i dagsläget komponenter bestående av axlar och transmissioner. Detta arbete redogör en nulägesbeskrivning som har tagits fram med hjälp av insamlad primärdata, i form av intervjuer och observationer. Nulägesbeskrivningen innefattar bland annat en detaljerad processkartläggning, olika lagerlayouts samt beräkningar som har varit fördelaktigt vid framtagandet av förbättringsförslagen. Den insamlade primärdata har jämförts med den teoretiska referensramen, som har varit till stöd vid utformningen av förslagen.   Företaget har i dagsläget krav på att leverera komponenter enligt FIFO (First In, First Out), som därmed är grunden till examensarbetet. Detta arbete har inte utgått från att implementera FIFO, utan att endast förbättra den befintliga hanteringen. Dagens arbetssätt av FIFO är inte optimal, i och med att det har bidragit till platsbrist i lagret. Detta har lett till att vissa komponenter lagerhålls i ett utelager som är placerat utanför FVL. Komponenterna som lagras i utelagret blir inte väderskyddade, vilket är en av de faktorer som företaget vill lösa.   Författarna har tagit fram olika förbättringsförslag bestående av införandet av ett: mobilt-, pall och rullfackställage, eller en ny lagerlayout. Dessa förslag har jämförts utifrån olika faktorer som författarna anser att företaget bör prioritera. Exempel på väsentliga faktorer som förslagen innefattar är bland annat kostnadsaspekten, volymutnyttjandet och tillämpningen av FIFO. Kostnadsförslagen för lagersystemen är framtagna utifrån stöd från leverantörer, vilket lett till en tydligare kostnadsjämförelse. Utifrån de presenterade förbättringsförslagen, har dessa avgränsats för att till slut kunna komma fram till ett slutgiltigt val. Vid fortsatta studier kring arbetet rekommenderas företaget att investera i ett pallställage som inte endast är en ekonomisk lösning, utan som dessutom löser platsbristen i lagret. Samtidigt lagerhålls samtliga komponenter med väderskydd. Detta kommer slutligen leda till en förbättrad FIFO hantering i FVL som företaget eftersträvar.
6

A production and inventory control system design for the fenton art glass company

Archibald, George January 1983 (has links)
No description available.
7

Improvements of an Inventory Control System with Simulation-based Analysis

Rosén Berecz, Maja, Wallhagen, Fabian January 2023 (has links)
This thesis aims to improve the inventory control system of a company´s RDC in Norrköping, Sweden. Inefficiencies and non-optimal processes have been identified in the current system, which could negatively affect operations. The study addresses three questions: understanding the current system, identifying improvements, and adjusting the improved system to fit inventory control constraints. A literature review and case study were conducted, revealing lower service levels and higher costs than expected. Experimental scenarios were simulated to examine different improvements, such as using economic order quantity, different safety stock equations, and investigating service levels. / <p>Examensarbetet är utfört vid Institutionen för teknik och naturvetenskap (ITN) vid Tekniska fakulteten, Linköpings universitet</p>
8

Propuesta para incrementar el nivel de servicio interno en el proceso de abastecimiento mediante el diseño de un sistema de control de inventarios y de la gestión de relación con los proveedores en una empresa del sector minero / Proposal to increase the level of internal service in the supply process through the design of an inventory control system and relationship management with suppliers in a company in the mining sector

Rioja Levano, Martin Reynaldo 13 July 2020 (has links)
La presente tesis se centra en analizar las herramientas de ingeniería industrial que permitan incrementar el nivel de servicio interno en el proceso de abastecimiento logístico en una empresa del sector minero y con el entorno económico de los últimos 10 años. La hipótesis plantea la implementación de un sistema de control de inventarios y de la gestión de relación con los proveedores. El trabajo está compuesto de cuatro capítulos. En el primero se analizó el marco teórico y los casos de éxito. En el segundo, se abordaron temas como: antecedentes y procesos generales y logísticos de la organización, definición del problema y sus causas, el impacto económico y el planteamiento del objetivo general y específico. Por su parte, el tercer capítulo se dividió en dos etapas: la primera correspondiente al diseño de la metodología y en la segunda etapa el desarrollo de la propuesta. Finalmente, en el cuarto capítulo, se incluyó el presupuesto de recursos, el análisis financiero de riesgos y la elaboración del flujo de caja respectivo; asimismo, se validó la propuesta por medio de la simulación con el software ProModel. Por lo expuesto, se concluye que, con la correcta elección del sistema de inventarios y una adecuada gestión de relación con los proveedores, se podrá incrementar el nivel de servicio interno en el proceso de abastecimiento logístico, con lo cual se logrará cumplir con un óptimo nivel de atención de repuestos de alta rotación, así como el cumplimiento en las entregas a tiempo para las compras con prioridad normal. / The present thesis focuses on analyzing industrial engineering tools that allow increasing the level of internal service in the logistics supply process in a company in the mining sector and with the economic environment of the last 10 years. he hypothesis raises the implementation of an inventory control system and supplier relationship management. The following work is made up of four chapters. In the first, the theoretical framework and success cases were analyzed. In the second, topics such as: background and general and logistical processes of the organization, definition of the problem and its causes, the economic impact and the approach of the general and specific objective were addressed. Consequently, the third chapter was divided into two stages: the first corresponding to the design of the methodology and the second to the development of the proposal. Nevertheless, in the fourth chapter, the resource budget, the financial risk analysis and the preparation of the respective cash flow were included; Likewise, the proposal was validated through simulation with the Promodel software. Based on the foregoing, it is concluded that, with the correct selection of the inventory system and proper relationship management with suppliers, the level of internal service in the logistics supply process may be increased, thereby achieving optimum compliance level of attention of high rotation spare parts, as well as the fulfillment in the deliveries in time for the purchases with a normal priority. / Trabajo de Suficiencia Profesional

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