Structural Health Monitoring Using Smart Sensors - ideals ...
Structural Health Monitoring Using Smart Sensors - ideals ...
Structural Health Monitoring Using Smart Sensors - ideals ...
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Table 7.4. Mass Normalization Constant Estimation<br />
Mode<br />
Frequency<br />
Mass Normalization<br />
Constant<br />
Difference in Mass<br />
Normalization Constant<br />
( – )<br />
1 19.9078 0.011098 0.3530<br />
2 41.1663 0.007703 1.0122<br />
3 62.6000 0.008077 0.0298<br />
4 67.3655 0.006587 -0.2212<br />
5 71.4202 0.003260 -1.7906<br />
6 94.2266 0.011514 0.7700<br />
Table 7.5. Summary of SVD in the DLV Method<br />
Singular Values<br />
DLVs<br />
Values Difference ( ) 1-MAC ( )<br />
2.8380<br />
2.6216<br />
1.9715<br />
4.2358<br />
1.3588<br />
3.0088<br />
5.4073<br />
6.8856<br />
1.2346<br />
1.6543<br />
2.9298<br />
1.1808<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
10<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
–<br />
0.4224 0<br />
0.5740 -2.2204<br />
4.4483 -2.2204<br />
0.0432 -4.4409<br />
2.9774 -2.2204<br />
-1.7915 -2.2204<br />
1.8335 0<br />
1.2435 0<br />
4.0434 2.2204<br />
-3.6429 2.2204<br />
4.1185 0<br />
3.4197 0<br />
the damaged elements to the base station. The details of the DCS logic are described<br />
herein with reference to Figure 7.22.<br />
When the manager sensor, which also works as the cluster head of a sensor<br />
community, completes application of the DLV method, the manager initializes itself to<br />
apply the DCS logic and sends a command to the next cluster head. For explanation<br />
purposes, the cluster heads are assumed to be arranged as shown in Figure 7.22. Cluster<br />
123
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