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Análise dos fatores influentes nos riscos de descontinuidade na cadeia de peças de reposição automotivas / Analysis of influential factors in discontinuity risk of spare parts chain automotiveSilva, Antonio Lopes Nogueira da [UNESP] 18 December 2015 (has links)
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Previous issue date: 2015-12-18 / O mercado brasileiro de veículos leves possui uma frota onde 43% dos veículos têm até cinco anos de fabricação, fazendo com que os setores de reposição de peças automotivas movimentem bilhões de reais por ano. Ainda assim, é comum a falta de peças de reposição, o que exige do gerenciamento da cadeia de suprimentos a mitigação dos riscos de descontinuidade. Este trabalho analisa os riscos de suprimentos na cadeia de peças de reposição nas redes concessionárias de veículos leves por meio da priorização das variáveis que influenciam a descontinuidade de suprimentos desta cadeia. O método aplicado apresenta uma abordagem quali-quanti junto às concessionárias da região Sul Fluminense. Estas concessionárias representam quatorze das principais marcas atuantes no Brasil com um volume de vendas na ordem de 93% em 2015. As variáveis mais importantes são capacitação da equipe, comunicação e lead time. A pesquisa também evidencia que fatores organizacionais são relevantes para o suprimento de peças de reposição o que não é indicado pela literatura, juntamente com os fatores relacionados à cadeia de suprimentos. / The Brazilian market for light vehicles has a fleet where 43% of vehicles have up to five years of manufacture, causing the spare sectors of automotive parts move billions a year. Still, it is common to lack of spare parts, which requires management of the supply chain to mitigate the discontinuity risks. This paper analyzes the risks of supply in the chain of spare parts for light vehicle dealerships networks by prioritizing the variables that influence the supply disruption in this chain. The applied method presents a qualitative and quantitative approach with the concessionaires of the South Fluminense region. These dealerships represent fourteen major brands operating in Brazil with a sales volume of around 93% in 2015. The most important variables are staff training, communication and lead time. The survey also shows that organizational factors are relevant to the spare parts supply which is not mentioned in the literature, together with the factors related to the supply chain.
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A lacuna entre a teoria de gestão de estoques e a prática empresarial na reposição de peças em concessionárias de automóveis / The gap between inventory management theory and automotive dealers practices on spare parts businessJosé Roberto do Rego 14 December 2006 (has links)
Este trabalho é um estudo de caso múltiplo, realizado em concessionárias do setor automotivo, que visa ao levantamento do estado atual da gestão dos estoques de peças de reposição e sua correlação com os modelos existentes na literatura sobre o tema. O estudo englobou sete concessionárias de quatro marcas, apontadas por especialistas das respectivas associações como sendo exemplos de boa gestão neste segmento. Os resultados apontaram que, de fato, no nível gerencial pesquisado existem grandes lacunas entre as teorias acadêmicas e as práticas, em especial quanto ao uso de técnicas de previsão de demanda, à decisão de estocagem dos produtos e às políticas de estocagem adotadas. O principal motivo para explicar estas lacunas é o desconhecimento das técnicas pelos gestores. Este desconhecimento parece estar ligado às deficiências na formação escolar e nos cursos de aperfeiçoamento oferecidos, pelas montadoras e associações, aos gestores destes estoques. Novas pesquisas são sugeridas, ao nível dos proprietários/acionistas das concessionárias, para verificação de outras possíveis explicações sobre os motivos destas lacunas. A pesquisa é concluída com diversas recomendações, tanto aos praticantes como aos acadêmicos, buscando a redução destas lacunas. / This dissertation is a multiple case study, performed in automotive dealers. The objective is to evaluate current spare parts inventory management practices status and their correlations with existing models on academic references. The study included seven dealers (from four different brands) which were recognized as examples of good practices at spare parts management by the dealer association specialists. The results pointed out that, in fact, at the managerial level interviewed, there are large gaps between academic theories and management practice, especially on demand forecasting, stocking decision and stocking policies. The gaps are mainly explained by managers? lack of knowledge on inventory control. This lack of knowledge seems to be caused by school and specialization courses (provided by automakers and dealers associations) deficiencies. New researches are suggested, at the owners/stockholders level, to verify other possible gap reasons. Research is concluded with several recommendations to academics and managers in order to reduce the theory-practice gap.
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Specifika logistiky náhradních dílů ve společnosti Renault Česká republika, a.s. / Specifics of Spare Parts Logistics, Renault Czech republic corp caseWotke, Kristýna January 2011 (has links)
Diploma thesis is analysing specific aspects of spare parts logistics on practical situation of Renault Česká Republika, a.s. ("RCR") and its largest concessionaire, RENAULT RETAIL GROUP CZ, s.r.o. (formerly Renault Praha Zličín - "RPZ"). Elements of spare parts supply chain are described separately with focus on spare parts distribution centre in Györ, Hungary, which is later compared with similar centres of Škoda Auto and Toyota. Furthermore the inbound logistics processes of RCR is described and commented. Subsequent parts of the thesis focus on the analysis of spare parts warehouse with objective to improve the efficiency of stored references compound in order to eliminate dispensable references which are being stored. This improvement should therefore allow ameliorated fixing of invested cash flow and minimise the amount of references to be ordered urgently due to unsuitable composition of stock in storage. Finally the thesis deals with effects impact of severe events such, in particular with actual effect of Japanese earthquake on spare parts supply chain and optional measures to be taken to diversify and/or minimise such risks.
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Analýza automobilového poprodejního trhu / Analysis of the Automobile AftermarketČablová, Eva January 2012 (has links)
The masters's thesis is focused on the Czech B2B market with car spare parts. First chapter explains theoretical marketing terms and methods that are later used in a practical part of the thesis. Second part of the master's thesis reflects current situation on automotive aftermarket. The reader will learn about subjects conducting business in the industry, about unions and trade associations that are entered by the subjects to protect their rights and interests. The chapter also includes block exemption that has legislatively changed rules of selling counterparts and of car repair. The third part describes Opel Spare Parts Programme, which was created to sell original spare parts Opel to independent services. Similar programmes of other car producers are compared in this chapter, and it also draws a comparison between offers of competitors in form of independent distributors of spare parts. B2B marketing research can be found at the end of the master's thesis, its aim was to identify levels of satisfaction with content and rules of the Opel Spare Parts Programme. Representatives of authorised Opel services became research respondents. Results of the research were used for planning marketing activities for 2013 schedule.
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Additive manufacturing of spare parts for the mining industry a pilot study on business impact from an aftermarket perspective.Vingerhagen, Kristian, Alfredsson, Julia January 2021 (has links)
The purpose of this pilot study was to identify and evaluate different business cases for Epiroc’s Parts & Services Division (PSD) regarding the use of additive manufacturing (AM), also known as 3D printing, for their spare parts within the mining industry. This study presents an approach for how spare parts promising for AM can be identified and shows the difficulties with AM. The study follows the design research methodology (DRM) standard for research within product and process development. Through interviews and literature searches, a "top-down" approach was applied. A developed cost-benefit model accompanied this approach and was used to identify and evaluate potential spare parts for AM from Epiroc’s current spare parts portfolio. The results were evaluated as promising for several of the spare parts in terms of reduced manufacturing, procurement, tool cost, and lead time reduction, which results in increased uptime for the customer. With reduced lead times, the availability increases for the customer, who may increase Epiroc’s sales and aftermarket revenues in the long run. There is also great potential for reducing the costs for warehousing, where spare parts of low demand can have their stocks reduced or eliminated by securing supply through on-demand manufacturing. Although many exciting business cases have been identified and evaluated, it has been acknowledged that CNC-machining in many cases is the cheaper alternative. Despite this, it is worth investing in AM from a strategic point of view as it is seen as a tool for the future. Before it can be adopted and implemented, Epiroc should do test trials with companies offering AM services. These can be used to update and tune the cost-benefit model accordingly to increase its reliability and validity. The model could also be developed further to incorporate AM’s additional benefits, such as weight and material reduction through design for additive manufacturing (DfAM). / Syftet med denna förstudie var att identifiera och utvärdera olika affärsmöjligheter för Epirocs Parts & Services-division (PSD) gällande användningen av additiv tillverkning (AM), även känd som 3D-printning, för deras reservdelar inom gruvindustrin. Denna studie presenterar ett tillvägagångssätt för hur reservdelar passande för AM kan identifieras och visar på svårigheterna med AM. Studien följer "design research methodology" (DRM), vilket kan översättas till designforsknings-metodologin, som är vanligt förekommande vid forskning inom produkt- och processutveckling. Genom intervjuer och litteratursökningar tillämpades en "top-down"-metod. Detta åtföljdes av en utvecklad kostnadsnyttomodell som tillsammans användes för att identifiera och utvärdera potentiella reservdelar för AM från Epirocs nuvarande reservdelsportfölj. Resultaten utvärderades som lovande för flertalet av reservdelarna vad gäller reducerad kostnad för tillverkning, inköp, verktyg och minskad ledtid, vilket resulterar i ökad drifttid för kunden. Med minskade ledtider ökar tillgängligheten för kunden, som kan öka Epirocs försäljning och eftermarknadsintäkter på lång sikt. Det finns också en stor potential i att minska kostnaderna för lagerhållning, där reservdelar med låg efterfrågan kan få sina lager att reduceras eller elimineras genom att säkra utbudet genom tillverkning vid behov. Även om många intressanta affärsmöjligheter har identifierats och utvärderats har det uppmärksammats att CNC-bearbetning i många fall kan vara det billigare alternativet. Trots detta är det värt att investera i AM ur en strategisk synvinkel eftersom det ses som ett verktyg för framtiden. Innan AM kan anammas och implementeras bör Epiroc göra testförsök med företag som erbjuder AM-tjänster. Dessa kan användas för att uppdatera och justera kostnadsnyttomodellen i enlighet med detta för att öka dess validitet och reliabilitet. Modellen kan också utvecklas vidare för att införliva AM:s ytterligare fördelar, såsom vikt- och materialreduktion genom design för additiv tillverkning (DfAM).
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Minska skrotning av provartiklar / Reduce scrapping of test itemsJansson, Andreas, Sundström, Jenny January 2018 (has links)
Målet med detta projekt var att minska skrotning av provartiklar på Scania genom att ta fram ett förslag på flöde för vidare distribuering. Även att ta fram villkor för vilka artiklar som är aktuella för vidareförsäljning, kvantifiera mängden artiklar som kan säljas vidare och utvärdera ekonomin. Detta med hänsyn till att endast undersöka avdelningen RT (Truck Chassis Development) på Scania. Projektet startade på initiativ av Scania CV AB då de såg potential för vidareförsäljning i artiklar som i dagsläget skrotades efter en provmontering. Projektet utfördes i fyra olika steg under 10 veckor och arbetet planerades med hjälp av ett GANT‐schema. I nulägesbeskrivningen utfördes ett antal möten och besök på olika inblandade avdelningar på Scania. På så sätt skaffades en överblicksbild över hur problemet såg ut, hur processen runt om kring var uppbyggt och hur information för att lösa problemet skulle tas fram. En undersökning av hur flödet ser ut innan skrotning utfördes och presenteras i form av tre faser kallade beställnings‐, provnings‐ och skrotningsfasen. Genomförande, resultat och analys består av rubriker hämtade från planeringsstadiet i PDCA‐hjulet. Dessa är identifiering av problemet, analys av problemet och presentation av ett lösningsförslag. Även en utvärdering av ekonomin presenteras där ekonomiska beräkningar på det möjliga försäljningsvärdet från ASB (begagnat försäljning) som skrotades under 2017, antagna implementeringskostnader och förväntade intäkter vid försäljning hos ASB utfördes. Dessa utifrån egna antaganden och CW2:s (reservdelslager) försäljningsstatistik år 2017. Resultatet presenteras i form av lösningsförslaget som är ett visuellt flöde mellan MPAP (Prototype Assembly) i By 220 och ASB i Hovsjö. Villkor för vilka artiklar som är aktuella för vidareförsäljning har tagits fram i form av komplettering av Scanias befintliga skortoningsbedömning. Kvantifieringen av mängden serieartiklar blev 1 113 stycken och utgjordes av 310 stycken unika serienummer. Utifrån utvärderingen av ekonomin blev resultatet att flödet skulle kunna ge en besparing på ca 1 Mkr under år 2017. En slutsats av projektet är att en implementering av lösningsförslaget skulle bidra till besparingar och även minska på skrotningen av provartiklar. / The aim of this project was to reduce scrapping of test items at Scania by proposing a flow for further distribution. Also, present terms for which items are relevant for further distribution, quantification of the amount of items that may be sold and evaluate the economy. This with consideration of only evaluate the RT (Truck Chassis Development) department at Scania. This project started on the initiative of Scania CV AB because they saw potential for a further distribution of items which currently are scrapped after a test assembly. The project was carried out in four different steps during 10 weeks and the work was planned with a GANT‐schedule. In the description of the current situation a number of interviews was conducted on different departments at Scania. Through the interviews an understanding of the problem, how the process looks like and how information to solve the problem was gathered. An evaluation of how the flow before scrapping was carried out and is presented by three phases called ordering, testing and scrapping phase. The implementation, result and analysis chapter contains headlines gathered from the planning phase in the PDCA‐wheel. These headlines are identification of the problem, analysing the problem and a presentation of a solution. An evaluation of the economy is also presented showing the possible financial calculations of the total scrapped sales value in 2017 from ASB (second‐hand market), assumed implementation costs and the expected income from sales at ASB. This based on own assumptions and CW2’s (spare parts storage) sales statistics in 2017. The results are presented by the suggested solution which is presented as a visual flow between MPAP (Prototype Assembly) in By 220 and ASB in Hovsjö. The terms of which items are relevant for further distribution has been established by adding terms to the scrapping evaluation at Scania. The quantification of the amount of items was 1 113 pieces and the detected amount of different serial numbers was 310. Based on the evaluation of the economy the result was calculated to a saved amount of about 1 MSEK in year 2017. The conclusion of the project is that an implementation of the suggested solution would contribute savings and reduce the scrapping of test items.
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THE GEOGRAPHY OF AUTOMOBILE SPARE PARTS TRADE: ASPMDA AND LADIPO AUTOMOBILE SPARE PARTS MARKETS, LAGOS, NIGERIAOgboo, Adanma Nelo 16 August 2011 (has links)
No description available.
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Usinas hidrelétricas cotistas: aspectos técnicos e regulatórios sobre a qualidade do serviço prestado. / Regulated hydropower plants: technical and regulatory aspects about the quality of service.Tenaglia, Gustavo Caravaggi 19 May 2017 (has links)
Esta Dissertação traz uma discussão sobre a necessidade de haver políticas de incentivo à existência de almoxarifado de operação em usinas hidrelétricas que renovaram suas concessões através da Lei 12.783/13 passando a pertencer ao regime de cotas de garantia física, e seus efeitos imediatos para a disponibilidade do sistema gerador e para a segurança de operação do sistema elétrico brasileiro, estabelecendo conexões do ambiente regulatório/econômico com o mundo físico/real. Com base nas teorias de confiabilidade, métodos de gestão de ativos e políticas de operação e manutenção, analisa-se a situação real do parque gerador hidrelétrico com mais de 30 anos de operação, e as consequências do aumento das taxas de falhas e redução de vida útil, explanando a necessidade de se promover uma forma de incentivo que corrija as assimetrias regulatórias estabelecidas, envolvendo as penalidades e os benefícios percebidos tanto pelo lado do agente regulado, quanto pelo lado do consumidor final. No texto deste trabalho, verifica-se uma discrepância entre os custos de O&M reais e regulatórios, induzindo duas análises possíveis: Para o caso em que as remunerações são superiores aos custos reais, a penalização proposta pelo regulador não é suficiente para induzir investimentos em almoxarifados, dado que o retorno não condiz com o custo de oportunidade do capital empregado. Já para o caso em que as remunerações são inferiores aos custos reais, as penalidades podem impor um desequilíbrio econômico-financeiro da gestão dos ativos, anulando os incentivos para manutenção da disponibilidade através da imobilização de ativos sobressalentes. Estes casos demonstram, de forma simples, a existência de uma falha no sinal dado pelo regulador para a manutenção da qualidade do serviço, medido através dos índices de disponibilidade. Ressalta-se que a degradação dos ativos pertencentes às usinas cotistas não só é prejudicial para a busca pela modicidade tarifária, mas também poderá ser crítica para a operação do sistema em um período em que as hidrelétricas existentes terão um papel fundamental o gerenciamento de carga com a entrada de fontes intermitentes no sistema elétrico brasileiro. Para isso, o trabalho está estruturado em sete capítulos: (1) introdução; (2) o modelo regulatório vigente; (3) usinas hidrelétricas e seus sistemas; (4) confiabilidade e taxa de falha; (5) estudo de caso 1 - qualidade do serviço prestado; (6) estudo de caso 2 - avaliação dos impactos sistêmicos e (7) considerações finais. / This Dissertation brings a discussion about the need of creating politics to incentive the existence of operational warehouses in Regulated Hydropower Plants, regarding the immediate effects in the availability and reliability of the Brazilian Electrical System - linking the regulatory environment to the physical world. Based in reliability theories, asset management theories and operational & maintenance polices, the work analyses the real performance of those he Regulated Hydropower Plants that are in operation for more than 30 years of operation, looking at the consequences of the growing of failure rates by going toward the end of the forecasted life-time of the main systems and equipment. By that, it aims to explain the need of promoting incentives that corrects the regulatory asymmetry involving the penalties and bonuses perceived by the regulated agent and the final consumer. Through this work, a discrepancy between the real and the regulatory O&M costs is noted, what leads to two different analysis: On the one hand, for those agents with regulated revenue greater than the real O&M costs, there is no incentive to spent their capital in spare parts due to the opportunity cost of that capital. On the other hand, the for those agent with regulated revenue lower than the real O&M costs, the penalties can easily impose an economic-financial imbalance, also nulling the incentives to immobilize assets in spare parts. Those two examples demonstrate in a simple way the failure in the sign given by the regulator to guarantee the quality of service of those Power Plants. It is divided into seven chapters: (1) introduction; (2) the current regulatory model; (3) hydropower plant and its systems; (4) reliability and failure rate; (5) study case 1 - quality of service; (6) study case 2 - evaluation of systemic impacts and (7) final considerations.
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Usinas hidrelétricas cotistas: aspectos técnicos e regulatórios sobre a qualidade do serviço prestado. / Regulated hydropower plants: technical and regulatory aspects about the quality of service.Gustavo Caravaggi Tenaglia 19 May 2017 (has links)
Esta Dissertação traz uma discussão sobre a necessidade de haver políticas de incentivo à existência de almoxarifado de operação em usinas hidrelétricas que renovaram suas concessões através da Lei 12.783/13 passando a pertencer ao regime de cotas de garantia física, e seus efeitos imediatos para a disponibilidade do sistema gerador e para a segurança de operação do sistema elétrico brasileiro, estabelecendo conexões do ambiente regulatório/econômico com o mundo físico/real. Com base nas teorias de confiabilidade, métodos de gestão de ativos e políticas de operação e manutenção, analisa-se a situação real do parque gerador hidrelétrico com mais de 30 anos de operação, e as consequências do aumento das taxas de falhas e redução de vida útil, explanando a necessidade de se promover uma forma de incentivo que corrija as assimetrias regulatórias estabelecidas, envolvendo as penalidades e os benefícios percebidos tanto pelo lado do agente regulado, quanto pelo lado do consumidor final. No texto deste trabalho, verifica-se uma discrepância entre os custos de O&M reais e regulatórios, induzindo duas análises possíveis: Para o caso em que as remunerações são superiores aos custos reais, a penalização proposta pelo regulador não é suficiente para induzir investimentos em almoxarifados, dado que o retorno não condiz com o custo de oportunidade do capital empregado. Já para o caso em que as remunerações são inferiores aos custos reais, as penalidades podem impor um desequilíbrio econômico-financeiro da gestão dos ativos, anulando os incentivos para manutenção da disponibilidade através da imobilização de ativos sobressalentes. Estes casos demonstram, de forma simples, a existência de uma falha no sinal dado pelo regulador para a manutenção da qualidade do serviço, medido através dos índices de disponibilidade. Ressalta-se que a degradação dos ativos pertencentes às usinas cotistas não só é prejudicial para a busca pela modicidade tarifária, mas também poderá ser crítica para a operação do sistema em um período em que as hidrelétricas existentes terão um papel fundamental o gerenciamento de carga com a entrada de fontes intermitentes no sistema elétrico brasileiro. Para isso, o trabalho está estruturado em sete capítulos: (1) introdução; (2) o modelo regulatório vigente; (3) usinas hidrelétricas e seus sistemas; (4) confiabilidade e taxa de falha; (5) estudo de caso 1 - qualidade do serviço prestado; (6) estudo de caso 2 - avaliação dos impactos sistêmicos e (7) considerações finais. / This Dissertation brings a discussion about the need of creating politics to incentive the existence of operational warehouses in Regulated Hydropower Plants, regarding the immediate effects in the availability and reliability of the Brazilian Electrical System - linking the regulatory environment to the physical world. Based in reliability theories, asset management theories and operational & maintenance polices, the work analyses the real performance of those he Regulated Hydropower Plants that are in operation for more than 30 years of operation, looking at the consequences of the growing of failure rates by going toward the end of the forecasted life-time of the main systems and equipment. By that, it aims to explain the need of promoting incentives that corrects the regulatory asymmetry involving the penalties and bonuses perceived by the regulated agent and the final consumer. Through this work, a discrepancy between the real and the regulatory O&M costs is noted, what leads to two different analysis: On the one hand, for those agents with regulated revenue greater than the real O&M costs, there is no incentive to spent their capital in spare parts due to the opportunity cost of that capital. On the other hand, the for those agent with regulated revenue lower than the real O&M costs, the penalties can easily impose an economic-financial imbalance, also nulling the incentives to immobilize assets in spare parts. Those two examples demonstrate in a simple way the failure in the sign given by the regulator to guarantee the quality of service of those Power Plants. It is divided into seven chapters: (1) introduction; (2) the current regulatory model; (3) hydropower plant and its systems; (4) reliability and failure rate; (5) study case 1 - quality of service; (6) study case 2 - evaluation of systemic impacts and (7) final considerations.
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Two-Echelon Supply Chain Design for Spare Parts with Time ConstraintsRiaz, Muhammad Waqas January 2013 (has links)
We consider a single-part, two-echelon supply chain problem for spare parts. The network consists of a single manufacturing plant, a set of service centers (SCs) and a set of customers. Both echelons keep spare parts using the base-stock replenishment policy. The plant behaves as an M/M/1 queueing system and has limited production and storage capacity. Demand faced by each SC follows an independent Poisson process. The problem is to determine optimal location-allocation and optimal base-stock levels at both echelons while satisfying the target service levels and customer preferences of SCs. We develop a mixed integer non-linear programming model and use cutting-plane method to optimize the inventory-location decisions. We present an exact solution procedure for the inventory stocking problem and demonstrate the limitations of using traditional inventory models like METRIC-like and Approximate in case of high utilization rates. We show the effectiveness of our proposed cutting-plane algorithm and provide important managerial insights for spare parts management.
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