Research Article
Fault Diagnosis of Beam-Like Structure Using Modified Fuzzy Technique
Table 5
Measured nondimensional natural frequencies and mode shape differences of fixed-fixed beam.
| Sl. number | Test points | Nondimensional natural frequency | Nondimensional mode shape differences | | | | | | | | |
| 1 | Uncrack | 0.000 | 1.000 | 1.000 | 1.000 | 0.000 | 0.000 | 0.000 | 2 | 0.125 | 0.200 | 0.935 | 0.957 | 0.952 | 0.262 | 0.226 | 0.309 | 3 | 0.125 | 0.300 | 0.924 | 0.955 | 0.95 | 0.378 | 0.315 | 0.378 | 4 | 0.125 | 0.400 | 0.909 | 0.943 | 0.948 | 0.175 | 0.034 | 0.082 | 5 | 0.250 | 0.200 | 0.941 | 0.962 | 0.955 | 0.141 | −0.082 | 0.189 | 6 | 0.250 | 0.300 | 0.919 | 0.961 | 0.939 | 0.012 | −0.805 | 0.242 | 7 | 0.250 | 0.400 | 0.932 | 0.957 | 0.937 | 0.178 | 0.059 | 0.372 | 8 | 0.375 | 0.200 | 0.937 | 0.95 | 0.954 | 0.065 | 0.239 | 0.394 | 9 | 0.375 | 0.300 | 0.929 | 0.948 | 0.951 | 0.078 | 0.291 | 0.376 | 10 | 0.375 | 0.400 | 0.931 | 0.942 | 0.949 | −0.035 | 0.296 | 0.39 |
|
|