Research Article
Vibration Analysis of Driving-Point System with Uncertainties Using Polynomial Chaos Expansion
Table 1
Parameters and random boundary conditions of the rectangular plate.
| | Variables | Distribution | Mean | Variation coefficient |
| | Young’s modulus | Deterministic | 2 × 1011 N/m2 | — | | Mass density | Deterministic | 7860 kg/m3 | — | | Poisson’s ratio | Deterministic | 0.3 | — | | Length | Deterministic | 1.2 m | — | | Width | Deterministic | 0.6 m | — | | Thickness | Deterministic | 7.5 × 10−3 m | — | | Spring stiffness | Gaussian | 10 k N/m | 0.25 | | Damping coefficient | Uniform | 0.5% | — |
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