Page 271 - Practical Design Ships and Floating Structures
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- deterministic input data .--,
input --b random input data 4
randomoutputresults -
deterministic output - output
4--
fuzzyoutputresults
Figure1 : Hazard identification of FSA
As mentioned above, the hazard identification of FSA covers so many non-deterministic factors either
input subsystem or objective system in which the fizzy factors in any part above will induce the output
results with hzzy (see Fig. 1).
The paper presents a comprehensive fizzy approach in the application of hawd identification of FSA,
in the approach the ship system is regarded as a whole. So this is a common approach which can be
used in assessment of many events in ship system.
2 COMPREHENSIVE FUZZY ASSESSMENT
2.1 One-LmeI Comprehensive Fuq Assessment (Lin and Chen, 1999)
One-Level Comprehensive Fuzzy Assessment follows the next orders:
1) Setting the factor set:
U={UI., u2,, ..., urn), u, (i= I, 2, ..., m) u, E Uor ui e U
2) Setting the selected set:
V={vr ,v2, ,..., v.) (i= I, 2, ..., n)
3) Setting the weighting set:
