scholarly journals Modelling oscillations in the supply chain: the case of a just-in-sequence supply process from the automotive industry

2021 ◽  
Author(s):  
Florian Klug
Keyword(s):  
Supply Chain ◽  
Phase Space ◽  
Supply Chains ◽  
Automotive Industry ◽  
Phase Locking ◽  
Real Life ◽  
Oscillator Model ◽  
Oscillation Phase ◽  
Dynamical Interaction ◽  
Arnold Tongue

AbstractPervasive and ubiquitous oscillations, mapping the repetitive variation in time of a specific state, are well known as abundant phenomena in research and practice. Motivated by the success of oscillators in the modelling, analysis and control of dynamical systems, we developed a related approach for the dynamic description of supply chains. This paper aims to introduce a generic oscillator model for supply chains by the original application of oscillator equations. Therefore an established oscillator model for deductive modelling of supply chain echelons is used. With the help of coupled van der Pol oscillators, the dynamical interaction of an inventory system is described and applied to a real-life supply process in automotive industry. According to its reductionist approach only two differential equations are used to analyse a Just-in-Sequence supply process in car industry. Based on the fact that any oscillatory state can be reduced to the phase of the oscillation (phase reduction), a phase space map is generated. This compact visual reference of the supply process can act as the quantitative basis for an adaptive control mechanism during its operation. By delaying or accelerating the inventory oscillations of the supplier stock a detuned coupled supply process can be re-synchronised without changing the amplitude. An additional analysis of Hilbert transform is applied to determine the boundaries of phase-locking between the inventory oscillation phases, where the instantaneous phases are bounded. Furthermore parameters of the synchronisation threshold and the transient phases between synchronous and non-synchronous regimes have been investigated, supported by an Arnold tongue representation. The investigations show that with the help of a generic oscillatory model it is possible to measure and quantify phenomena of inventory dynamics in supply chains. Especially the analysis of synchronisation phenomena with the help of phase space and Arnold tongue representations foster developments of performance measurement in supply chain management.

Modelling Oscillations in the Supply Chain: The Case of a Just-in-Sequence Supply Process from the Automotive Industry

2021 ◽  
Author(s):  
Florian Klug
Keyword(s):  
Supply Chain ◽  
Phase Space ◽  
Supply Chains ◽  
Automotive Industry ◽  
Phase Locking ◽  
Real Life ◽  
Oscillator Model ◽  
Oscillation Phase ◽  
Dynamical Interaction ◽  
Arnold Tongue

Abstract Pervasive and ubiquitous oscillations, mapping the repetitive variation in time of a specific state, are well known as abundant phenomena in research and practice. Motivated by the success of oscillators in the modelling, analysis and control of dynamical systems, we developed a related approach for the dynamic description of supply chains. This paper aims to introduce a generic oscillator model for supply chains by the original application of oscillator equations. Therefore an established oscillator model for deductive modelling of supply chain echelons is used. With the help of coupled van der Pol oscillators, the dynamical interaction of an inventory system is described and applied to a real-life supply process in automotive industry. According to its reductionist approach only two differential equations are used to analyse a Just-in-Sequence supply process in car industry. Based on the fact that any oscillatory state can be reduced to the phase of the oscillation (phase reduction), a phase space map is generated. This compact visual reference of the supply process can act as the quantitative basis for an adaptive control mechanism during its operation. By delaying or accelerating the inventory oscillations of the supplier stock a detuned coupled supply process can be re-synchronised without changing the amplitude. An additional analysis of Hilbert transform is applied to determine the boundaries of phase-locking between the inventory oscillation phases, where the instantaneous phases are bounded. Furthermore parameters of the synchronisation threshold and the transient phases between synchronous and non-synchronous regimes have been investigated, supported by an Arnold tongue representation. The investigations show that with the help of a generic oscillatory model it is possible to measure and quantify phenomena of inventory dynamics in supply chains. Especially the analysis of synchronisation phenomena with the help of phase space and Arnold tongue representations foster developments of performance measurement in supply chain management.

scholarly journals THE IMPACT OF THE COVID-19 PANDEMIC ON SUPPLY CHAINS IN THE AUTOMOTIVE INDUSTRY

2020 ◽  
Author(s):  
Goran Milovanovic ◽  
◽  
Tamara Stankovic ◽  
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Automotive Industry ◽  
Business Relationships ◽  
Automotive Supply Chain ◽  
Automotive Supply ◽  
The Impact ◽  
Insight Into ◽  
Chain Level

Health crises have an impact on supply chains, mainly by disrupting their regular activities. In this research, the authors have analyzed the impact that the Covid-19 pandemic has made on business relationships between supply chain partners in the automotive industry and their suppliers, which are mostly from territories where the initial outbreak of the SARS COV 2 virus occurred. The analysis shows that in some cases, there is a strong dependency between the pandemic and production levels. Being dependent prevents supply chains from maintaining stability and causes system vulnerabilities. The authors conclude their work with a thesis on the pronounced impact of the current pandemic on automotive supply chain activities. For the analysis to be complete, it is necessary to monitor changes in production levels further, since data for the current year still does not provide a realistic insight into all the consequences at the supply chain level.

scholarly journals Transparency for Multi-Tier Sustainable Supply Chain Management: A Case Study of a Multi-tier Transparency Approach for SSCM in the Automotive Industry

2020 ◽  
Vol 12 (5) ◽  
pp. 1814 ◽  
Author(s):  
Iain J. Fraser ◽  
Martin Müller ◽  
Julia Schwarzkopf
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Supply Chains ◽  
Automotive Industry ◽  
Raw Material ◽  
Sustainable Supply Chain ◽  
Chain Management ◽  
Before And After ◽  
Sustainability Problems

Sustainability in supply chain management (SSCM) has become established in both academia and increasingly in practice. As stakeholders continue to require focal companies (FCs) to take more responsibility for their entire supply chains (SCs), this has led to the development of multi-tier SSCM (MT-SSCM). Much extant research has focused on simple supply chains from certain industries. Recently, a comprehensive traceability for sustainability (TfS) framework has been proposed, which outlines how companies could achieve MT-SSCM through traceability. Our research builds on this and responds to calls for cases from the automotive industry by abductively analysing a multi-tier supply chain (MT-SC) transparency case study. This research analyses a raw material SC that is particularly renowned for sustainability problems—the cobalt supply chain for electric vehicles—and finds that the extant literature has oversimplified the operationalisation of transparency in MT-SSCM. We compare the supply chain maps of the MT-SC before and after an auditing and mapping project to demonstrate the transparency achieved. Our findings identify challenges to the operationalisation of SC transparency and we outline how FCs might set to increase MT-SC transparency for sustainability.

scholarly journals A Neutrosophic AHP and TOPSIS Framework for Supply Chain Risk Assessment in Automotive Industry of Pakistan

2019 ◽  
Vol 12 (1) ◽  
pp. 154 ◽  
Author(s):  
Muhammad Junaid ◽  
Ye Xue ◽  
Muzzammil Wasim Syed ◽  
Ji Zu Li ◽  
Muhammad Ziaullah
Keyword(s):  
Risk Assessment ◽  
Supply Chain ◽  
Supply Chains ◽  
Automotive Industry ◽  
Holistic Approach ◽  
Supply Chain Risk Management ◽  
Supply Chain Risk ◽  
Analytic Hierarchy ◽  
Supply Chain Resilience ◽  
Supply Chain Risks

Risk is inherent in all parts of life and brings consequences, but when it specifically emerges in supply chains, it is susceptible. Therefore, this study aims at identifying and assessing supply chain risks and developing criteria for managing these risks. Supply chain (SC) risks consist of complex, uncertain, and vague information, but risk assessment techniques in the literature have been unable to handle complexity, uncertainty, and vagueness. Therefore, this study presents a holistic approach to supply chain risk management. In this paper, neutrosophic (N) theory is merged with the analytic hierarchy process (AHP) and technique for order of preference by similarity to ideal solution (TOPSIS) to deal with complexity, uncertainty, and vagueness. Then the proposed methodology is practically implemented through a case study on the automotive industry. SC resilience, SC agility, and SC robustness were selected as criteria for managing supply chain risks and analyzed using N-AHP. Furthermore, seventeen risks were identified and assessed by using N-TOPSIS. Results suggest supply chain resilience is the most important criterion for managing supply chain risks. Moreover, supplier delivery delays, supplier quality problems, supplier communication failures, and forecasting errors are the most vulnerable risks that occur in supply chains of the automotive industry in Pakistan.

scholarly journals Blockchain-integrated technologies for solving supply chain challenges

2021 ◽  
Vol 3 (2) ◽  
pp. 78-97
Author(s):  
Dhruman Gohil ◽  
Shivangi Viral Thakker
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Real Life ◽  
Extensive Literature ◽  
Research Papers ◽  
Content Type ◽  
Blockchain Technology ◽  
Successful Execution ◽  
Barriers And Challenges ◽  
Smart Technologies

PurposeBlockchain technology was developed to synchronize the data and transactions over the supply chain network and connected nodes. This paper aims to show how blockchain technology can enhance flexibility and agility in supply chain operations. The integration of blockchain and other recently developed technology can help deal with supply chain uncertainties and other challenges being faced by the industry.Design/methodology/approachThrough an extensive literature review of existing research papers and conversation with supply chain managers, barriers and challenges in the supply chain were identified. Some elements were researched of blockchain technology that can be used to resolve some challenges. Blockchain technology and other technologies integration is developed for implementation in supply chain for better visibility and efficiency of supply chain.FindingsThe challenges in the supply chain are categorized, and the solution is given through the integration of blockchain and other technologies like Internet of Things and artificial intelligence. The integration shows the execution of tasks through blockchain and various technologies in supply chain.Research limitations/implicationsBlockchain in supply chain is finding its strong place in India when compared to developing nations. There is a need for technology experts, supply chain managers and consumers to understand blockchain’s importance. Challenges faced by industries to use blockchain may be analyzed further with real-life industry case studies.Practical implicationsThis research helps enterprises in successful execution of smart technologies in their supply chains. This research helps enterprises in successful execution of smart technologies in their supply chains. Managers and practitioners may use the models developed in real-time implementation. The technologies are described in detail to help the practitioners select the best suitable for their organization.Social implicationsDigital supply chains are finding the way in industries due to lean and efficient nature. It is beneficial to use the smart technologies to make supply chain green and sustainable.Originality/valueThe implementation of the digital supply chain and its challenges are discussed in the research paper. This will work as a platform for research in the area of technologies for supply chain.

The potential role of philanthropy in humanitarian supply chains delivery: the case of Thailand

2017 ◽  
Vol 7 (3) ◽  
pp. 284-303 ◽  
Author(s):  
Ruth Banomyong ◽  
Puthipong Julagasigorn
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Real Life ◽  
Multinational Firm ◽  
Supply Chain Collaboration ◽  
Content Type ◽  
Humanitarian Supply Chains ◽  
Strategic Philanthropy ◽  
Humanitarian Supply Chain

Purpose The purpose of this paper is to provide a framework on how strategic philanthropy can be included in humanitarian supply chains delivery. This framework explains the modalities where strategic philanthropy can be successful when collaborating with key humanitarian supply chain actors. Design/methodology/approach A philanthropy delivery framework is developed based on the literature related to strategic philanthropy and humanitarian supply chains. The delivery framework is further validated with the real-life case study of a multinational firm during the 2011 Thai floods. Findings Procter and Gamble (P&G) was involved in the Thailand flood 2011 relief efforts in three phases: preparation, immediate response, and reconstruction phase. The company supported and distributed a water purifier through a non-governmental relief agency, the Princess Pa Foundation, under the Thai Red Cross Society, that enabled P&G to not only gain the trust of the targeted community during all the phases but in the continued usage of their water purifier after the event. Community leaders and P&G’s modern trade retailers played an important role in collaborating in this humanitarian supply chain to enable the successful delivery and usage of the donated water purifier. Research limitations/implications This proposed delivery framework is appropriate for in-kind products and services philanthropy. The case study describes how strategic philanthropy can be implemented in a specific case, i.e. flood disaster. Practical implications Academia, practitioners, and companies who are involved in humanitarian reliefs may adopt and adapt this framework in order to enable a win-win situation for all stakeholders in the humanitarian supply chain. Originality/value The delivery framework suggests that firms can develop successful strategic philanthropy through systematic humanitarian supply chain collaboration. It explains how a company can operate its philanthropic programs through collaboration with others as well as describes how these different actors can work together.

The Impact of Modular Production on the Dynamics of Supply Chains

1998 ◽  
Vol 9 (2) ◽  
pp. 35-50 ◽  
Author(s):  
Remko I. van Hoek ◽  
Harm A.M. Weken
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Automotive Industry ◽  
Manufacturing Process ◽  
New Model ◽  
Zero Level ◽  
Modular Production ◽  
Expected Benefits ◽  
Operational Activities ◽  
The Impact

The principle of modular production has been applied internally by companies since the 1960's. Innovative companies in various industries are now experimenting with application of the concept in a supply chain setting. Modular production makes it possible to further involve distributors and suppliers in the manufacturing process and create a new tier of suppliers in the automotive industry; that of the “zero‐level supplier”. Expected benefits of the increased integration in the inbound and outbound flow of goods are improved responsiveness to customers and increased efficiency. It can be questioned, however to what extent manufacturers can increase the amount of control over operational activities based on networking, as opposed to control based on ownership, without becoming an empty design and marketing company. This paper assesses the impact of the new model of modular production on the dynamics in supply chains as a whole and the consequences for individual players, based on innovative cases such as that of the SMART car.

scholarly journals Supply Chain Management in Pandemic Times

2021 ◽  
Vol 15 (4) ◽  
pp. 524-528
Author(s):  
Atanas Kochov ◽  
Elena Kochovska
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Supply Chains ◽  
Automotive Industry ◽  
Research Study ◽  
Just In Time ◽  
Automotive Sector ◽  
Chain Management ◽  
The Republic

The automotive industry is one of the sectors that has been hardest hit by the pandemic crisis. The pandemic’s effects have resulted in multiple disorders, which led to loss of important suppliers and the inability to obtain vital parts, exposing the vulnerability of current Lean Just in Time supply chains. This paper provides a brief analysis of the COVID-19 pandemic's impact on the automotive sector in the Republic of North Macedonia. The provided findings are based on a research study conducted simultaneously in eight automotive organizations in the Republic of North Macedonia. This study sought to investigate the extent of the pandemic's influence on organizations' supply chains, what preventive steps have been implemented to minimize the virus's transmission, and what are the most prevalent obstacles that organizations have experienced during the pandemic.

scholarly journals Impact of supply chain on the competitiveness of the automotive industry

2019 ◽  
Vol 54 (2) ◽  
pp. 205-225
Author(s):  
Carlos Sakuramoto ◽  
Luiz Carlos Di Serio ◽  
Alexandre de Vicente Bittar
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Transaction Costs ◽  
Automotive Industry ◽  
Chain Structure ◽  
Strategic Decision ◽  
Chain Model ◽  
Horizontal Structure ◽  
Content Type ◽  
Structural Problems

Purpose There is a great reliance on fiscal incentives to sustain the automotive industry competitiveness due to several structural problems, among them the inefficiency of the supply chain. This paper aims to compare the supply chain structure of traditional automotive industry with the supply chains from South Korea and China. Based on strategic decision and transaction cost theory, this comparison seeks to exploit the factors that led to the inefficiency of automotive supply chains. Design/methodology/approach The authors used a qualitative approach and applied a multi-method research. They conducted semi-structured interviews with six executives from automakers representing the selected countries, carried individual meetings during one workshop and used secondary data from several sources. Findings Concepts identified in the research such as reliability, supply chain governance and automaker competencies led the authors to propose that the traditional automakers have higher transaction costs when compared to the new automakers due to the horizontal structure of their supply chain. While new competitors have vertical upstream supply chains, which indicates better profitability, traditional automotive industry is horizontal, depends on fewer Tier 1 suppliers and is disconnected from Tier 2, impacting negatively in the transaction costs and supply chain management. Practical implications This study suggests that automotive executives rethink the current upstream supply chain model by identifying the competencies required for their current and future competitiveness and implementing a vertical integration of these competencies. Originality/value This research exploited the inefficiency of supply chain as one of the explanations for the low competitiveness of the national automotive industry.

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