A hybrid interval-parameter fuzzy robust programming method and its application to filter management strategy in fluid power systems

作者：Nie S L^*; Ji H; Huang Y Q; Li Y P; Huang G H

来源：Engineering Optimization, 2014, 46(1): 15-38.

DOI：10.1080/0305215X.2012.743534

• contamination control
• fluid power systems
• interval-parameter
• robust programming
• uncertainty

An interval-parameter fuzzy robust programming (IFRP) method is developed for the assessment of filter allocation and replacement strategies in a fluid power system (FPS) under uncertainty. The developed IFRP can effectively handle the uncertainties expressed as fuzzy sets, interval values, and their combinations, which exist in contaminant ingression/generation of the system and contaminant-holding capacity of filter without making assumptions on their probabilistic distributions. The fuzzy decision space can be delimited into a more robust one with the uncertainties being specified through dimensional enlargement of the original fuzzy constraints, leading to enhanced robustness for the optimization process. Results indicate that the developed IFRP can not only help decision-maker to identify optimal filter allocation and replacement strategies to control the contamination level of FPS with a minimized system-cost and system-failure risk under multiple uncertainties, but also mitigate uncertainties through abating interval widths of the replacement periods and service life under different contamination ingression/generation rates.

• 出版日期2014-1-2
• 单位华北电力大学（保定）; 华北电力大学; 北京工业大学