A modeling approach for evaluating capacity flexibilities in uncertain markets

Zaeh, Michael F.; Mueller, N. P.

doi:10.1007/s10696-007-9024-6

Cited by 17 publications

(4 citation statements)

References 39 publications

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“…Further research is required to understand the tradeoffs in efficiency derived from large ports and their ability to be made resilient before policy changes or recommendations for the system of ports as a whole can be made. As researchers assess supply chains, they have begun to examine 'capacity flexibility' as an important component of corporate resilience strategies (Zaeh and Mueller, 2007). In an effort to understand tradeoffs decision makers are exploring models that help strike a balance between duplicate versus flexible assets by linking the cost of failures to system capacity (Sheffi and Rice, 2005).…”

Section: Analysing the Capacity Required To Handle Different Commoditmentioning

confidence: 99%

An initial exploration of port capacity bottlenecks in the USA port system and the implications on resilience

Trepte

Rice

2014

IJSTL

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Ports are clearly important to the national and global economies. Several high profile events highlight the need not only to harden ports but to decrease recovery times when failures do occur to increase the resilience of the system as a whole. Our research suggests that disruptions occur with regular frequency and, with outliers removed, range from 6 to 20 days in duration. Furthermore, we find key commodity classes, such as chemicals and food and farm products may be especially sensitive to those disruptions due to geographic cargo concentrations. While the US port system is capable of supporting current cargo volumes, it is sensitive to adverse events, leading us to conclude that stakeholders must place renewed focus on resilience in order to reduce economic impacts when major port disruptions occur. The port resilience research has been generously supported by the U.S. Department of Homeland Security through the National Center for Secure and Resilient Maritime Commerce (CSR) at Stevens Institute of Technology in Hoboken, NJ.

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Section: Analysing the Capacity Required To Handle Different Commoditmentioning

confidence: 99%

An initial exploration of port capacity bottlenecks in the USA port system and the implications on resilience

Trepte

Rice

2014

IJSTL

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“…However, to do so, it is necessary to develop a flexibility model that allows for the simultaneous quantification of conventional and additive process chains and manufacturing logic. Based on the works and frameworks of [64,66], numerous models have been developed for the quantification of different types of flexibility (e.g., [68][69][70][71][72][73][74][75]).…”

Section: Relevant Research On Manufacturing Flexibilitymentioning

confidence: 99%

A Cost/Benefit and Flexibility Evaluation Framework for Additive Technologies in Strategic Factory Planning

2023

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There is a growing demand for more flexibility in manufacturing to counter the volatility and unpredictability of the markets and provide more individualization for customers. However, the design and implementation of flexibility within manufacturing systems are costly and only economically viable if applicable to actual demand fluctuations. To this end, companies are considering additive manufacturing (AM) to make production more flexible. This paper develops a conceptual model for the impact quantification of AM on volume and mix flexibility within production systems in the early stages of the factory-planning process. Together with the model, an application guideline is presented to help planners with the flexibility quantification and the factory design process. Following the development of the model and guideline, a case study is presented to indicate the potential impact additive technologies can have on manufacturing flexibility Within the case study, various scenarios with different production system configurations and production programs are analyzed, and the impact of the additive technologies on volume and mix flexibility is calculated. This work will allow factory planners to determine the potential impacts of AM on manufacturing flexibility in an early planning stage and design their production systems accordingly.

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“…Variations of unit costs mainly emerge from a change of the level of fixed cost or from an alteration of the degree of capacity utilization [40]. The level of fixed costs changes especially when additional capacity is needed.…”

Section: Reference Model Of a Supply Contractmentioning

confidence: 99%

“…This data can be gathered for example through a time-series analysis applying the Holt-Winters method [40]. Furthermore, demand variations that occur during the rolling revisions of the demand forecast (see Fig.…”

Section: Modeling Demand and Its Variationsmentioning

confidence: 99%

A method to determine customer-specific volume flexibility in a supply network

Reinhart

Schellmann

2011

Prod. Eng. Res. Devel.

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Volume flexibility is a crucial factor to keep up performance in supply networks. In order to align volume flexibility requirements along the various supply chains within the networks, contracts defining flexibility ranges are set up increasingly in customer-supplier relationships. However, suppliers lack suitable methods to evaluate the limits of volume flexibility that they can guarantee in terms of a contract, especially if they are members of several cross-linked supply chains. Hence, this article presents an approach to evaluate customer-specific volume flexibility. Therefore, factors influencing volume flexibility are modelled mathematically. Subsequently, a dedicated simulation system is introduced to evaluate volume flexibility of different demand scenarios in terms of flexibility range as well as adjustment time and costs. Finally, the interpretation of the simulation results is demonstrated.

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A modeling approach for evaluating capacity flexibilities in uncertain markets

Cited by 17 publications

References 39 publications

An initial exploration of port capacity bottlenecks in the USA port system and the implications on resilience

An initial exploration of port capacity bottlenecks in the USA port system and the implications on resilience

A Cost/Benefit and Flexibility Evaluation Framework for Additive Technologies in Strategic Factory Planning

A method to determine customer-specific volume flexibility in a supply network

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