What does fuzziness mean? Conventional dual logic does not accept that some item may partially belong to two or more separate sets. It starts from the idea of “crispness“; each item has its place in one set only. The real world, however, behaves in another way; situations are very often vague and uncertain, the future
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- Introduction to forest-based bioeconomy
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What does fuzziness mean?
After reading this article you will..
- understand the uncertainty with fuzzy logic.
- learn the concept of membership function.
Content
Process control and automation
- Introduction to process control and automation
- Development of process automation
- Fibre process automation
- Chemical recovery as a control object
- Advances in paper machine automation
- Paper machine as a dynamical system
- Tasks in paper machine control and management
- Control of stock flow concentration and quality
- Machine direction control
- Cross-directional control – The static optimisation
- Cross-directional control – Dynamics
- Cross-directional control – further aspects
- Controlling functional paper properties
- Managing grade chances in the paper machine
- Managing disturbances caused by broke and recovered solids
- Millwide systems
- Modelling and control methods
Authors & references
Edited by:
Professor Emeritus Kauko Leiviskä, University of Oulu
Based on: Leiviskä, K., Methods (Chapter 3). In: Leiviskä, K. (ed), Process and Maintenance Management, (Book 14), Papermaking Science and Technology. 2nd edition. Jyväskylä, 2009, Paper Engineer’s Association/Paperi ja Puu Oy. pp. 28–71.
References:
- Zadeh, L. A. (1975). The Concept of a Linguistic Variable and Its Application to Approximate Reasoning–1, Information Sciences 8:199–249.
- Mendel, J. M. (2001). Uncertain Rule-Based Fuzzy Logic Systems: Introduction and New Directions, Prentice-Hall, Upper-Saddle River.
Videos
Exercises
This page has been updated 15.11.2020
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