التفاصيل البيبلوغرافية
| العنوان: |
Identification of filter management strategy in fluid power systems under uncertainty: an interval-fuzzy parameter integer nonlinear programming method. |
| المؤلفون: |
Nie, S. L., Hu, B., Li, Y. P., Hu, Z., Huang, G. H. |
| المصدر: |
International Journal of Systems Science; Mar2011, Vol. 42 Issue 3, p429-448, 20p, 10 Charts, 3 Graphs |
| مصطلحات موضوعية: |
INFORMATION filtering systems, FLUID power technology, UNCERTAINTY (Information theory), FUZZY systems, NONLINEAR programming, INTERVAL analysis, ELECTRIC circuits, RISK assessment |
| مستخلص: |
An interval-fuzzy integer nonlinear programming (IFINP) method is developed for the identification of filter allocation and replacement strategies in a fluid power system (FPS) under uncertainty. It can handle uncertainties expressed as interval-fuzzy values that exist in the left- and right-hand sides of constraints as well as in the objective function. The developed method is applied to a case of planning filter allocation and replacement strategies under uncertainty for a FPS with a single circuit. A piecewise linearisation approach is used to convert the nonlinear problem of FPS into a linear one. The generated fuzzy solutions will be used to analyse and interpret the multiple decision alternatives under various system conditions, and thus help decision-makers to make a compromise among the system contamination level, system cost, satisfaction degrees and system-failure risks under different contaminant ingression/generation rates. The results demonstrate that the suction and return filters can effectively reduce the contamination level associated with a low system cost, but the FPS will take lots of failure risk when the contaminant ingression/generation rate is high; and the combination of suction and pressure filters can bring the lowest system cost with more security instead. Furthermore, comparisons for the optimised solutions are made among IFINP, interval-parameter integer nonlinear programming and deterministic linear programming also. Generally, the IFINP method can effectively reduce the total design and operation cost of the filtration system when contaminants ingression/generation rate is high, and it could be extended to the lubricating system. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
