University of Groningen
Condition-based production and maintenance decisions
uit het Broek, Michiel
DOI:
10.33612/diss.118424026
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Publication date: 2020
Link to publication in University of Groningen/UMCG research database
Citation for published version (APA):
uit het Broek, M. (2020). Condition-based production and maintenance decisions. University of Groningen, SOM research school. https://doi.org/10.33612/diss.118424026
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Propositions
accompanying the PhD thesis
Condition-based production and
maintenance decisions
by
Michiel A. J. uit het Broek
1. Operations managers should not solely focus on high production rates, as producing at a slightly lower rate can substantially reduce maintenance costs. (Chapters 2 – 3)
2. Condition-based production policies can realize win-win scenarios by reducing failure risk while increasing production output. (Chapter 2) 3. Condition-based production policies result in low failure risks while
condition-based maintenance policies typically come with higher total production outputs and more failures. (Chapter 3)
4. A machine should not immediately be slowed down when it deteriorates faster than expected. (Chapters 2 – 4)
5. The intuition to slow down the most deteriorated machine is not always optimal; in various cases this machine should be accelerated instead. (Chapter 4)
6. Considerable cost savings are possible by sharing a jack-up vessel with multiple service providers, and the vessel, in contrast to as often believed by practitioners, should not be fully utilized as this harms responsiveness. (Chapter 5)
7. Mathematical models are stylized representations of the real world that aim to provide valuable educated suggestions and insights for practition-ers. We should therefore also treat them as such and not lose ourselves in unnecessary mathematical formalities and peculiarities.
8. The discretization of continuous-time continuous-state problem formula-tions is not always as straightforward as it seems to be, and, if not done carefully, may result in false conclusions.
