Research Article
The Resonance Reliability and Global Sensitivity Analysis of Curved Pipe Conveying Fluid Based on TIS Method
Table 1
The distribution parameter of the input variables of example.
| | Input variables/unit | Distribution | Mean value | variance |
| | Pipe Yang’s modulus(GPa) | Gauss | 68.9 | 3.43 | | Pipe outer diameter(m) | Gauss | 0.0232 | 0.00116 | | Pipe thickness(m) | Gauss | 0.0041 | 0.000205 | | Pipe density(kg/m3) | Gauss | 7197 | 359.85 | | Fluid density(kg/m3) | Gauss | 1000 | 50 | | Velocity(m/s) | Gauss | 0 | 0.05 | | Maximum excitation frequency(rad/s) | Gauss | 410 | 20.5 | | Minimum excitation frequency(rad/s) | Gauss | 210 | 10.5 | | Radius of curvature(m) | Gauss | 0.5 | 0.025 | | Pressure(MPa) | Gauss | 10 | 0.5 |
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