Research Article
Experimental Study on the Influence on Vibration Characteristics of Thin Cylindrical Shell with Hard Coating under Cantilever Boundary Condition
Table 12
The calculated natural frequencies and mode shapes of cantilever cylindrical shell with and without hard coating and their errors.
| | Modal order | No coating state | Coating state | | Measured (Hz) | Calculated (Hz) | Errors
(%) | Measured (Hz) | Calculated (Hz) | Errors
(%) |
| | 1 | 898.5 | 923.1 | 2.7 | 893.0 | 918.4 | 2.8 | | 2 | 970.5 | 985.3 | 1.5 | 951.5 | 972.3 | 2.2 | | 3 | 1045.0 | 1064.9 | 1.9 | 1037.0 | 1057.8 | 2.0 | | 4 | 1152.5 | 1194.6 | 3.7 | 1144.5 | 1171.8 | 2.4 | | 5 | 1292.0 | 1326.5 | 2.7 | 1289.5 | 1306.3 | 1.3 | | 6 | 1309.5 | 1378.2 | 5.2 | 1307.0 | 1362.4 | 4.2 | | 7 | 1606.5 | 1650.8 | 2.8 | 1604.5 | 1644 | 2.5 | | 8 | 1990.0 | 2021.5 | 1.6 | 1988.0 | 2011.9 | 1.2 |
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