Probabilistic Neural Network and Fuzzy Cluster Analysis Methods Applied to Impedance-Based SHM for Damage Classification

Table 7

Optimization results of the Gustafson-Kessel algorithm for the aircraft window.

	Iteration	Initial objective function value	Final objective function value
PZT1	130	107992,545	13922,783
PZT2	44	1951882,844	3723,708
PZT3	112	11418,915	1011,319
PZT4	131	14063,77	1106,733
PZT5	105	73130,147	3914,543
PZT6	83	187017,9	8330,349
PZT7	9	209498,097	1474,566
PZT8	101	71861,057	7189,752
PZT9	40	149831,047	652,42